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Seborrheic keratosis

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51: 169: 184: 378: 144:. Because only the top layers of the epidermis are involved, seborrheic keratoses are often described as having a "pasted on" appearance. Some dermatologists refer to seborrheic keratoses as "seborrheic warts", because they resemble warts, but strictly speaking, the term "warts" refers to lesions that are caused by the 422:
Seborrheic keratosis is the most common benign skin tumor. Incidence increases with age. There is less prevalence in people with darker skin. In large-cohort studies, all patients aged 50 and older had at least one seborrheic keratosis. Onset is usually in middle age, although they are common in
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Visual diagnosis is made by the "stuck on" appearance, horny pearls or cysts embedded in the structure. Darkly pigmented lesions can be challenging to distinguish from nodular melanomas. Furthermore, thin seborrheic keratoses on facial skin can be very difficult to differentiate from
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can clinically resemble seborrheic keratoses, and dermatoscopy can be helpful to differentiate them. On the penis and genital skin, condylomas and seborrheic keratoses can be difficult to differentiate, even on biopsy.
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Yeatman JM, Kilkenny M, Marks R (September 1997). "The prevalence of seborrhoeic keratoses in an Australian population: does exposure to sunlight play a part in their frequency?".
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Medical reasons for removing seborrheic keratoses include irritation and bleeding. They may also be removed for cosmetic reasons. Generally, lesions can be treated with
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from a healing wound, and range in size from very small to more than 2.5 centimetres (1 in) across. They are often associated with other skin conditions, including
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Chen, Tiffany Y.; Morrison, Annie O.; Cockerell, Clay J. (2017-09-01). "Cutaneous malignancies simulating seborrheic keratoses: An underappreciated phenomenon?".
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on the face, a condition generally presenting on darker-skinned individuals. DPN is extremely common, affecting up to 30% of black people in the United States.
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A study examining over 4,000 biopsied skin lesions identified clinically as seborrheic keratoses showed 3.1% were malignancies. Two-thirds of those were
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Inverted follicular keratosis is generally thought to be a rare variant of seborrheic keratosis, but this position is not universally accepted.
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younger patients too, as they are found in 12% of 15-year-olds to 25-year-olds, which makes the term "senile keratosis" a misnomer.
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Tan, Kong-Bing; Tan, Sze-Hwa; Aw, Derrick Chen-Wee; Jaffar, Huma; Lim, Thiam-Chye; Lee, Shu-Jin; Lee, Yoke-Sun (2013).
124:) appear in various colours, from light tan to black. They are round or oval, feel flat or slightly elevated, like the 3272: 3267: 3094: 2728: 1846: 865: 585: 455:
Karadag, AyseSerap; Ozlu, Emin; Uzuncakmak, TugbaKevser; Akdeniz, Necmettin; Cobanoglu, Bengu; Oman, Berkant (2016).
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Fusco, N.; Lopez, G.; Gianelli, U. (2015). "Basal Cell Carcinoma and Seborrheic Keratosis: When Opposites Attract".
3644: 3335: 3302: 3252: 3034: 2902: 2543: 1955: 407: 3659: 3400: 3330: 3185: 3109: 3099: 3081: 2723: 3292: 3282: 2718: 2713: 2533: 1914: 1540: 1180:"The prevalence of seborrheic keratoses in people aged 15 to 30 years: is the term senile keratosis redundant?" 132:. Rarely, seborrheic keratosis and basal cell carcinoma occur at the same location. At clinical examination, a 3421: 3287: 3247: 3066: 2936: 2921: 2738: 2614: 2107: 1798: 1635: 3654: 3277: 2913: 2733: 2481: 2274: 2029: 1720: 1650: 3257: 3056: 2897: 2760: 2659: 2528: 2523: 2505: 2024: 1555: 1510: 204:
are similar to seborrheic keratoses in appearance. Epidermal nevi are usually present at or near birth.
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Reutter, Jason C.; Geisinger, Kim R.; Laudadio, Jennifer (2014). "Vulvar Seborrheic Keratosis".
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Dull or lackluster surface, and with round, loosely packed nests of cells seen histologically.
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Dull or lackluster surface, and with round, loosely packed nests of cells seen histologically.
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in the diagnosis of seborrheic keratosis is represented by the histolopathologic analysis of a
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The cause of seborrheic keratosis is not known. The only definitive association is that its
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Grimes PE, Arora S, Minus HR, Kenney JA Jr (1983). "Dermatosis papulosa nigra".
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Common. Dull or lackluster surface, and with church-spire-like projections of
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Dull or lackluster surface, and with keratin cysts seen histologically.
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Microscopically it is characterized as a well-circumscribed inverted
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Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007).
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Seborrheic keratoses may be divided into the following types:
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Multiple seborrheic keratoses on the back of a patient with
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Dull or lackluster surface. It involves a proliferation of
209: 137: 1091: 117:, seborrheic keratoses are seen more often as people age. 733: 776: 516:
Hafner, C; Vogt, T (Aug 2008). "Seborrheic keratosis".
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Seborrheic verruca, basal cell papilloma, senile wart
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Cutaneous keratosis, ulcer, atrophy, and necrobiosis
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Palisaded neutrophilic and granulomatous dermatitis
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Andrews' Diseases of the Skin: Clinical Dermatology
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Journal der Deutschen Dermatologischen Gesellschaft
2927:Lupus erythematosus–lichen planus overlap syndrome 1177: 954:"Cutaneous Melanoacanthoma: eMedicine Dermatology" 777:Luba MC, Bangs SA, Mohler AM, Stulberg DL (2003). 690: 256:(basal cell papilloma, solid seborrheic keratosis) 1372:Diseases of the skin and appendages by morphology 105:) skin tumour that originates from cells, namely 3726: 3207: 898: 2975:Morphea–lichen sclerosus et atrophicus overlap 1038: 966: 608:James, William D.; Berger, Timothy G. (2006). 3640:Inflammatory linear verrucous epidermal nevus 3193: 2438: 1857:Pityriasis lichenoides et varioliformis acuta 1357: 578:Fitzpatrick's Dermatology in General Medicine 91:Electrodesiccation and curettage, cryotherapy 1511:Dermatofibroma (benign fibrous histiocytoma) 109:, in the outer layer of the skin called the 16:Benign skin tumor originating in keratocytes 3396:Aggressive digital papillary adenocarcinoma 923: 921: 693:International Journal of Surgical Pathology 607: 576:Fitzpatrick, T.B.; Freedberg, I.M. (2003). 394:(DPN) is a condition of many small, benign 3432:Primary cutaneous adenoid cystic carcinoma 3200: 3186: 2445: 2431: 1364: 1350: 1011: 515: 83:Based on clinical examination, skin biopsy 49: 2539:Seborrheic keratosis with squamous atypia 1195: 1178:Gill D, Dorevitch A, Marks R (Jun 2000). 1119: 1109: 1085: 994: 984: 603: 601: 599: 597: 482: 472: 386: 324:Seborrheic keratosis with squamous atypia 3650:Pigmented hairy epidermal nevus syndrome 2780:Interstitial granulomatous drug reaction 2751:Annular elastolytic giant-cell granuloma 2573:Confluent and reticulated papillomatosis 2556:Keratosis punctata of the palmar creases 918: 182: 167: 3689:Unilateral palmoplantar verrucous nevus 2625:Multiple minute digitate hyperkeratosis 2610:Hyperkeratosis of the nipple and areola 655: 635: 633: 631: 629: 571: 569: 567: 565: 563: 561: 559: 557: 555: 3727: 3694:Zosteriform speckled lentiginous nevus 3541:Keratoacanthoma centrifugum marginatum 2482:Acrokeratosis paraneoplastica of Bazex 2164:Disseminated intravascular coagulation 853: 736:Journal of Lower Genital Tract Disease 594: 357:Asymptomatic, firm, white–tan to pink 3181: 3072:Atrophia maculosa varioliformis cutis 2776:Interstitial granulomatous dermatitis 2426: 1345: 1092:Zhang, Ru-Zhi; Zhu, Wen-Yuan (2011). 3735:Epidermal nevi, neoplasms, and cysts 3310:Nevoid basal-cell carcinoma syndrome 2600:Hyperkeratosis lenticularis perstans 626: 552: 3052:Acrodermatitis chronica atrophicans 13: 3154:Poikiloderma vasculare atrophicans 3047:Atrophoderma of Pasini and Pierini 2985:Atrophoderma of Pasini and Pierini 1989: 1946:Postinflammatory hyperpigmentation 1157:10.1111/j.1365-2133.1997.tb03748.x 932:. St. Louis: Mosby. p. 1665. 14: 3751: 3095:Reactive perforating collagenosis 2729:Granuloma annulare in HIV disease 1847:Transient acantholytic dermatosis 1215: 1073:. American Academy of Dermatology 461:Indian Dermatology Online Journal 363:acanthotic squamous proliferation 3645:Linear verrucous epidermal nevus 2544:Reticulated seborrheic keratosis 1956:Idiopathic guttate hypomelanosis 857:A Practical Guide to Skin Cancer 530:10.1111/j.1610-0387.2008.06788.x 408:electrodesiccation and curettage 376: 336:(pigmented seborrheic keratosis) 265:Reticulated seborrheic keratosis 3740:Dermal and subcutaneous growths 3660:Phakomatosis pigmentokeratotica 3110:Acquired perforating dermatosis 3100:Elastosis perforans serpiginosa 3040:Jadassohn–Pellizzari anetoderma 1966:Hypopigmented mycosis fungoides 1171: 1136: 1063: 960: 881: 847: 445: 417: 242:Subtype (and alternative names) 2534:Irritated seborrheic keratosis 2207:Lichen sclerosis et atrophicus 1915:Subcorneal pustular dermatosis 1541:Infantile digital fibromatosis 813:Journal of Cutaneous Pathology 804: 770: 727: 684: 509: 313:Irritated seborrheic keratosis 267:(adenoid seborrheic keratosis) 1: 3422:Microcystic adnexal carcinoma 3067:Linear atrophoderma of Moulin 2739:Patch-type granuloma annulare 2615:Inverted follicular keratosis 1799:Epidermolysis bullosa simplex 1636:Langerhans cell histiocytosis 1098:Indian Journal of Dermatology 580:(6th ed.). McGraw-Hill. 503: 353:Inverted follicular keratosis 187:Seborrheic keratosis close-up 3655:Systematized epidermal nevus 3401:Extramammary Paget's disease 3035:Schweninger–Buzzi anetoderma 2734:Localized granuloma annulare 2275:Systemic lupus erythematosus 2030:Systemic lupus erythematosus 1721:Systemic lupus erythematosus 748:10.1097/LGT.0b013e3182952357 401: 318:Dull or lackluster surface. 259:Dull or lackluster surface. 163: 7: 2761:Necrobiotic xanthogranuloma 2660:Waxy keratosis of childhood 2529:Common seborrheic keratosis 2524:Clonal seborrheic keratosis 2506:Keratoderma blennorrhagicum 1556:Lymphangioma circumscriptum 779:"Common benign skin tumors" 426: 303:Clonal seborrheic keratosis 254:Common seborrheic keratosis 231: 175:of a seborrheic keratosis ( 10: 3756: 3628:Nevus comedonicus syndrome 3263:Fibroepithelioma of Pinkus 2477:Paraneoplastic keratoderma 2378:Mucous membrane pemphigoid 1197:10.1001/archderm.136.6.759 18: 3702: 3668: 3607: 3600: 3559: 3526: 3463: 3454: 3409: 3386: 3318: 3235: 3226: 3219: 3136: 3118: 3080: 3010: 2950: 2885: 2870: 2841: 2788: 2699: 2686: 2549:Dermatosis papulosa nigra 2472:Keratoderma climactericum 2458: 2341: 2308: 2252: 2237: 2228: 2185: 2156: 2135: 2126: 2079: 2038: 2007: 1996: 1978: 1923: 1865: 1807: 1744: 1664: 1593: 1582: 1573: 1488: 1452: 1384: 1377: 1304: 1223: 930:Dermatology: 2-Volume Set 889:Dermatosis Papulosa Nigra 392:Dermatosis papulosa nigra 179:, scanning magnification) 120:The tumours (also called 87: 77: 65: 57: 48: 40: 35: 3623:Schimmelpenning syndrome 3618:Epidermal nevus syndrome 3373:Erythroplasia of Queyrat 3105:Perforating folliculitis 3057:Semicircular lipoatrophy 2494:Drug-induced keratoderma 2143:Thrombocytopenic purpura 1789:Dermatitis herpetiformis 1774:Acute contact dermatitis 1726:Pityriasis rubra pilaris 1651:Wiskott–Aldrich syndrome 1621:Lichen simplex chronicus 1501:Epidermal inclusion cyst 860:. Springer. p. 80. 854:Hanlon, Allison (2018). 705:10.1177/1066896915593802 474:10.4103/2229-5178.182354 438: 433:The sign of Leser-TrĂ©lat 369:and without significant 151: 19:Not to be confused with 3062:Follicular atrophoderma 2850:eosinophilic dermatosis 2408:Squamous-cell carcinoma 2403:Systemic histoplasmosis 1794:Porphyria cutanea tarda 1424:Squamous-cell carcinoma 1111:10.4103/0019-5154.84754 218:squamous cell carcinoma 3503:Pilar sheath acanthoma 2790:Foreign body granuloma 2701:Necrobiotic/palisading 2595:Chronic scar keratosis 2383:Cicatricial pemphigoid 2300:Acne keloidalis nuchae 2295:Folliculitis decalvans 1071:"Seborrheic keratoses" 973:Journal of Skin Cancer 387:Differential diagnoses 188: 180: 134:differential diagnosis 3442:Malignant mixed tumor 3417:Merkel-cell carcinoma 2965:Localized scleroderma 2746:Necrobiosis lipoidica 2678:Cutis verticis gyrata 2605:Hydrocarbon keratosis 2489:Aquagenic keratoderma 2285:Loose anagen syndrome 2212:Necrobiosis lipoidica 2148:Actinic/solar purpura 1822:Insect bite reactions 1611:Seborrheic dermatitis 1434:Merkel-cell carcinoma 1414:Molluscum contagiosum 612:. Saunders Elsevier. 186: 171: 21:seborrheic dermatitis 3536:Generalized eruptive 3513:Seborrheic keratosis 3128:Pyoderma gangrenosum 2990:Pansclerotic morphea 2771:Rheumatoid nodulosis 2756:Granuloma multiforme 2635:Reactional keratosis 2585:Ichthyosis acquisita 2568:Acanthosis nigricans 2519:Seborrheic keratosis 2460:Epidermal thickening 2108:Annulare centrifugum 1631:Glucagonoma syndrome 1429:Basal-cell carcinoma 1404:Seborrheic keratosis 160:increases with age. 146:human papillomavirus 130:basal cell carcinoma 101:is a non-cancerous ( 99:seborrheic keratosis 36:Seborrheic keratosis 3679:Nevus unius lateris 3437:Verrucous carcinoma 2980:Generalized morphea 2818:Zirconium granuloma 2798:Beryllium granuloma 2666:other hypertrophy: 2620:Lichenoid keratosis 2590:Arsenical keratosis 2353:Aphthous stomatitis 2290:Lichen planopilaris 2265:Androgenic alopecia 2071:Fixed drug eruption 1646:Pemphigus foliaceus 1546:Granular cell tumor 986:10.1155/2013/752864 297:, ankle, and foot. 3427:Mucinous carcinoma 3368:Bowenoid papulosis 3000:Linear scleroderma 2813:Silicone granuloma 2709:Granuloma annulare 2373:Pemphigus vulgaris 2202:Granuloma annulare 2066:Carcinoid syndrome 1951:Tuberous sclerosis 1910:Coccidioidomycosis 1784:Bullous pemphigoid 1779:Pemphigus vulgaris 1711:Secondary syphilis 1601:Contact dermatitis 1305:External resources 189: 181: 3722: 3721: 3718: 3717: 3635:Nevus comedonicus 3596: 3595: 3592: 3591: 3518:Warty dyskeratoma 3450: 3449: 3378:Actinic keratosis 3175: 3174: 3171: 3170: 2970:Localized morphea 2942:Rowell's syndrome 2866: 2865: 2856:Granuloma faciale 2803:Mercury granuloma 2673:Hypertrophic scar 2655:Warty dyskeratoma 2645:Thermal keratosis 2420: 2419: 2416: 2415: 2260:Telogen effluvium 2224: 2223: 2220: 2219: 2181: 2180: 2177: 2176: 2122: 2121: 1974: 1973: 1842:Lichen spinulosus 1837:Keratosis pilaris 1716:Mycosis fungoides 1616:Stasis dermatitis 1606:Atopic dermatitis 1569: 1568: 1444:Trichoepithelioma 1419:Actinic keratosis 1339: 1338: 1026:(4): 385–6, 392. 939:978-1-4160-2999-1 825:10.1111/cup.12975 619:978-0-7216-2921-6 384: 383: 95: 94: 79:Diagnostic method 60:Leser–TrĂ©lat sign 30:Medical condition 25:actinic keratosis 3747: 3684:Patch blue nevus 3605: 3604: 3569:Verruca vulgaris 3461: 3460: 3358:Marjolin's ulcer 3346:Signet-ring-cell 3233: 3232: 3224: 3223: 3202: 3195: 3188: 3179: 3178: 3144:Calcinosis cutis 3025:Lichen sclerosus 2995:Morphea profunda 2883: 2882: 2808:Silica granuloma 2697: 2696: 2640:Stucco keratosis 2447: 2440: 2433: 2424: 2423: 2358:Oral candidiasis 2235: 2234: 2133: 2132: 2061:Erythema nodosum 2005: 2004: 1994: 1993: 1987: 1986: 1931:Tinea versicolor 1769:Bullous impetigo 1706:Pityriasis rosea 1641:Lichen sclerosus 1626:Darier's disease 1591: 1590: 1580: 1579: 1536:Kaposi's sarcoma 1382: 1381: 1366: 1359: 1352: 1343: 1342: 1221: 1220: 1210: 1209: 1199: 1175: 1169: 1168: 1140: 1134: 1133: 1123: 1113: 1089: 1083: 1082: 1080: 1078: 1067: 1061: 1060: 1058: 1056: 1042: 1036: 1035: 1015: 1009: 1008: 998: 988: 964: 958: 957: 956:. 22 March 2023. 950: 944: 943: 925: 916: 909:Stucco Keratosis 905: 896: 885: 879: 878: 876: 874: 851: 845: 844: 808: 802: 801: 783:Am Fam Physician 774: 768: 767: 731: 725: 724: 688: 682: 681: 679: 677: 659: 653: 652: 647:. Archived from 645:Cleveland Clinic 637: 624: 623: 605: 592: 591: 573: 550: 549: 513: 497: 496: 486: 476: 449: 380: 276:Stucco keratosis 239: 238: 53: 33: 32: 3755: 3754: 3750: 3749: 3748: 3746: 3745: 3744: 3725: 3724: 3723: 3714: 3698: 3664: 3608:Epidermal nevus 3588: 3584:Periungual wart 3555: 3528:Keratoacanthoma 3522: 3498:Melanoacanthoma 3456: 3446: 3405: 3382: 3363:Bowen's disease 3314: 3215: 3206: 3176: 3167: 3132: 3114: 3076: 3015: 3006: 2955: 2946: 2888: 2887:Cutaneous lupus 2875: 2862: 2842:Other/ungrouped 2837: 2784: 2682: 2650:Viral keratosis 2454: 2451: 2421: 2412: 2344: 2337: 2304: 2270:Alopecia areata 2248: 2230: 2216: 2173: 2152: 2128: 2118: 2075: 2034: 2020:Viral exanthems 1998: 1982: 1980: 1970: 1941:Pityriasis alba 1919: 1861: 1803: 1740: 1660: 1656:Zinc deficiency 1586: 1584: 1565: 1493: 1484: 1448: 1439:Nevus sebaceous 1373: 1370: 1340: 1335: 1334: 1300: 1299: 1232: 1218: 1213: 1176: 1172: 1141: 1137: 1090: 1086: 1076: 1074: 1069: 1068: 1064: 1054: 1052: 1044: 1043: 1039: 1016: 1012: 965: 961: 952: 951: 947: 940: 926: 919: 906: 899: 886: 882: 872: 870: 868: 852: 848: 809: 805: 775: 771: 732: 728: 689: 685: 675: 673: 661: 660: 656: 639: 638: 627: 620: 606: 595: 588: 574: 553: 514: 510: 506: 501: 500: 452: 450: 446: 441: 429: 420: 404: 389: 367:squamous eddies 334:Melanoacanthoma 245:Characteristics 234: 220:. To date, the 194:lentigo maligna 166: 154: 31: 28: 17: 12: 11: 5: 3753: 3743: 3742: 3737: 3720: 3719: 3716: 3715: 3713: 3712: 3710:Cutaneous horn 3706: 3704: 3700: 3699: 3697: 3696: 3691: 3686: 3681: 3675: 3673: 3666: 3665: 3663: 3662: 3657: 3652: 3647: 3642: 3637: 3632: 3631: 3630: 3625: 3620: 3611: 3609: 3602: 3598: 3597: 3594: 3593: 3590: 3589: 3587: 3586: 3581: 3576: 3571: 3565: 3563: 3557: 3556: 3554: 3553: 3548: 3543: 3538: 3532: 3530: 3524: 3523: 3521: 3520: 3515: 3510: 3505: 3500: 3495: 3494: 3493: 3488: 3483: 3478: 3469: 3467: 3458: 3452: 3451: 3448: 3447: 3445: 3444: 3439: 3434: 3429: 3424: 3419: 3413: 3411: 3407: 3406: 3404: 3403: 3398: 3392: 3390: 3388:Adenocarcinoma 3384: 3383: 3381: 3380: 3375: 3370: 3365: 3360: 3355: 3354: 3353: 3348: 3343: 3338: 3333: 3324: 3322: 3316: 3315: 3313: 3312: 3307: 3306: 3305: 3300: 3295: 3290: 3285: 3280: 3275: 3270: 3265: 3260: 3255: 3250: 3241: 3239: 3230: 3221: 3217: 3216: 3205: 3204: 3197: 3190: 3182: 3173: 3172: 3169: 3168: 3166: 3165: 3156: 3151: 3146: 3140: 3138: 3134: 3133: 3131: 3130: 3124: 3122: 3116: 3115: 3113: 3112: 3107: 3102: 3097: 3092: 3086: 3084: 3078: 3077: 3075: 3074: 3069: 3064: 3059: 3054: 3049: 3044: 3043: 3042: 3037: 3027: 3021: 3019: 3008: 3007: 3005: 3004: 3003: 3002: 2997: 2992: 2987: 2982: 2977: 2972: 2961: 2959: 2948: 2947: 2945: 2944: 2939: 2934: 2929: 2924: 2917: 2916: 2906: 2905: 2900: 2893: 2891: 2880: 2868: 2867: 2864: 2863: 2861: 2860: 2859: 2858: 2845: 2843: 2839: 2838: 2836: 2835: 2830: 2825: 2820: 2815: 2810: 2805: 2800: 2794: 2792: 2786: 2785: 2783: 2782: 2773: 2768: 2763: 2758: 2753: 2748: 2743: 2742: 2741: 2736: 2731: 2726: 2721: 2716: 2705: 2703: 2694: 2684: 2683: 2681: 2680: 2675: 2670: 2663: 2662: 2657: 2652: 2647: 2642: 2637: 2632: 2630:PUVA keratosis 2627: 2622: 2617: 2612: 2607: 2602: 2597: 2592: 2587: 2582: 2577: 2576: 2575: 2564:hyperkeratosis 2559: 2558: 2553: 2552: 2551: 2546: 2541: 2536: 2531: 2526: 2511: 2510: 2509: 2508: 2496: 2491: 2486: 2485: 2484: 2474: 2464: 2462: 2456: 2455: 2450: 2449: 2442: 2435: 2427: 2418: 2417: 2414: 2413: 2411: 2410: 2405: 2400: 2395: 2393:Coxsackievirus 2390: 2385: 2380: 2375: 2370: 2365: 2360: 2355: 2349: 2347: 2339: 2338: 2336: 2335: 2330: 2325: 2320: 2314: 2312: 2306: 2305: 2303: 2302: 2297: 2292: 2287: 2282: 2277: 2272: 2267: 2262: 2256: 2254: 2250: 2249: 2247: 2246: 2243: 2241: 2232: 2226: 2225: 2222: 2221: 2218: 2217: 2215: 2214: 2209: 2204: 2199: 2189: 2187: 2183: 2182: 2179: 2178: 2175: 2174: 2172: 2171: 2166: 2160: 2158: 2154: 2153: 2151: 2150: 2145: 2139: 2137: 2130: 2124: 2123: 2120: 2119: 2117: 2116: 2110: 2105: 2103:Gyratum repens 2100: 2095: 2089: 2083: 2081: 2077: 2076: 2074: 2073: 2068: 2063: 2058: 2053: 2048: 2042: 2040: 2036: 2035: 2033: 2032: 2027: 2025:Toxic erythema 2022: 2017: 2015:Drug eruptions 2011: 2009: 2002: 1991: 1984: 1976: 1975: 1972: 1971: 1969: 1968: 1963: 1958: 1953: 1948: 1943: 1938: 1933: 1927: 1925: 1921: 1920: 1918: 1917: 1912: 1907: 1902: 1897: 1892: 1887: 1882: 1877: 1871: 1869: 1863: 1862: 1860: 1859: 1854: 1852:Lichen nitidus 1849: 1844: 1839: 1834: 1829: 1824: 1819: 1813: 1811: 1805: 1804: 1802: 1801: 1796: 1791: 1786: 1781: 1776: 1771: 1766: 1761: 1756: 1754:Herpes simplex 1750: 1748: 1742: 1741: 1739: 1738: 1733: 1728: 1723: 1718: 1713: 1708: 1703: 1697: 1692: 1687: 1682: 1676: 1670: 1668: 1662: 1661: 1659: 1658: 1653: 1648: 1643: 1638: 1633: 1628: 1623: 1618: 1613: 1608: 1603: 1597: 1595: 1588: 1577: 1571: 1570: 1567: 1566: 1564: 1563: 1558: 1553: 1548: 1543: 1538: 1533: 1528: 1523: 1518: 1513: 1508: 1503: 1497: 1495: 1486: 1485: 1483: 1482: 1477: 1472: 1467: 1462: 1456: 1454: 1450: 1449: 1447: 1446: 1441: 1436: 1431: 1426: 1421: 1416: 1411: 1406: 1401: 1396: 1390: 1388: 1379: 1375: 1374: 1369: 1368: 1361: 1354: 1346: 1337: 1336: 1333: 1332: 1321: 1309: 1308: 1306: 1302: 1301: 1298: 1297: 1286: 1275: 1264: 1249: 1233: 1228: 1227: 1225: 1224:Classification 1217: 1216:External links 1214: 1212: 1211: 1170: 1135: 1104:(4): 432–434. 1084: 1062: 1037: 1010: 959: 945: 938: 917: 897: 880: 866: 846: 803: 789:(4): 729–738. 769: 726: 683: 654: 651:on 2015-05-22. 625: 618: 593: 586: 551: 507: 505: 502: 499: 498: 443: 442: 440: 437: 436: 435: 428: 425: 419: 416: 403: 400: 388: 385: 382: 381: 374: 355: 349: 348: 337: 330: 329: 326: 320: 319: 316: 309: 308: 305: 299: 298: 291:histologically 279: 272: 271: 268: 261: 260: 257: 250: 249: 246: 243: 233: 230: 202:epidermal nevi 200:. Clinically, 165: 162: 153: 150: 93: 92: 89: 85: 84: 81: 75: 74: 69: 63: 62: 55: 54: 46: 45: 42: 38: 37: 29: 15: 9: 6: 4: 3: 2: 3752: 3741: 3738: 3736: 3733: 3732: 3730: 3711: 3708: 3707: 3705: 3701: 3695: 3692: 3690: 3687: 3685: 3682: 3680: 3677: 3676: 3674: 3672: 3667: 3661: 3658: 3656: 3653: 3651: 3648: 3646: 3643: 3641: 3638: 3636: 3633: 3629: 3626: 3624: 3621: 3619: 3616: 3615: 3613: 3612: 3610: 3606: 3603: 3599: 3585: 3582: 3580: 3577: 3575: 3574:Verruca plana 3572: 3570: 3567: 3566: 3564: 3562: 3558: 3552: 3549: 3547: 3544: 3542: 3539: 3537: 3534: 3533: 3531: 3529: 3525: 3519: 3516: 3514: 3511: 3509: 3508:Seboacanthoma 3506: 3504: 3501: 3499: 3496: 3492: 3491:Epidermolytic 3489: 3487: 3484: 3482: 3479: 3477: 3474: 3473: 3471: 3470: 3468: 3466: 3462: 3459: 3453: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3425: 3423: 3420: 3418: 3415: 3414: 3412: 3408: 3402: 3399: 3397: 3394: 3393: 3391: 3389: 3385: 3379: 3376: 3374: 3371: 3369: 3366: 3364: 3361: 3359: 3356: 3352: 3349: 3347: 3344: 3342: 3339: 3337: 3334: 3332: 3329: 3328: 3326: 3325: 3323: 3321: 3317: 3311: 3308: 3304: 3301: 3299: 3296: 3294: 3291: 3289: 3286: 3284: 3281: 3279: 3276: 3274: 3271: 3269: 3266: 3264: 3261: 3259: 3256: 3254: 3251: 3249: 3246: 3245: 3243: 3242: 3240: 3238: 3234: 3231: 3229: 3225: 3222: 3218: 3214: 3210: 3203: 3198: 3196: 3191: 3189: 3184: 3183: 3180: 3164: 3163:Pseudo-ainhum 3160: 3157: 3155: 3152: 3150: 3149:Sclerodactyly 3147: 3145: 3142: 3141: 3139: 3135: 3129: 3126: 3125: 3123: 3121: 3117: 3111: 3108: 3106: 3103: 3101: 3098: 3096: 3093: 3091: 3090:Kyrle disease 3088: 3087: 3085: 3083: 3079: 3073: 3070: 3068: 3065: 3063: 3060: 3058: 3055: 3053: 3050: 3048: 3045: 3041: 3038: 3036: 3033: 3032: 3031: 3028: 3026: 3023: 3022: 3020: 3018: 3013: 3009: 3001: 2998: 2996: 2993: 2991: 2988: 2986: 2983: 2981: 2978: 2976: 2973: 2971: 2968: 2967: 2966: 2963: 2962: 2960: 2958: 2953: 2949: 2943: 2940: 2938: 2935: 2933: 2930: 2928: 2925: 2923: 2919: 2918: 2915: 2911: 2908: 2907: 2904: 2901: 2899: 2895: 2894: 2892: 2890: 2889:erythematosus 2884: 2881: 2879: 2873: 2869: 2857: 2854: 2853: 2852: 2851: 2847: 2846: 2844: 2840: 2834: 2831: 2829: 2826: 2824: 2821: 2819: 2816: 2814: 2811: 2809: 2806: 2804: 2801: 2799: 2796: 2795: 2793: 2791: 2787: 2781: 2777: 2774: 2772: 2769: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2740: 2737: 2735: 2732: 2730: 2727: 2725: 2722: 2720: 2717: 2715: 2712: 2711: 2710: 2707: 2706: 2704: 2702: 2698: 2695: 2693: 2689: 2685: 2679: 2676: 2674: 2671: 2669: 2665: 2664: 2661: 2658: 2656: 2653: 2651: 2648: 2646: 2643: 2641: 2638: 2636: 2633: 2631: 2628: 2626: 2623: 2621: 2618: 2616: 2613: 2611: 2608: 2606: 2603: 2601: 2598: 2596: 2593: 2591: 2588: 2586: 2583: 2581: 2578: 2574: 2571: 2570: 2569: 2565: 2561: 2560: 2557: 2554: 2550: 2547: 2545: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2525: 2522: 2521: 2520: 2516: 2513: 2512: 2507: 2504: 2503: 2502: 2501: 2497: 2495: 2492: 2490: 2487: 2483: 2480: 2479: 2478: 2475: 2473: 2469: 2466: 2465: 2463: 2461: 2457: 2448: 2443: 2441: 2436: 2434: 2429: 2428: 2425: 2409: 2406: 2404: 2401: 2399: 2396: 2394: 2391: 2389: 2386: 2384: 2381: 2379: 2376: 2374: 2371: 2369: 2366: 2364: 2363:Lichen planus 2361: 2359: 2356: 2354: 2351: 2350: 2348: 2346: 2340: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2318:Onychomycosis 2316: 2315: 2313: 2311: 2307: 2301: 2298: 2296: 2293: 2291: 2288: 2286: 2283: 2281: 2280:Tinea capitis 2278: 2276: 2273: 2271: 2268: 2266: 2263: 2261: 2258: 2257: 2255: 2251: 2245: 2244: 2242: 2240: 2236: 2233: 2229:Miscellaneous 2227: 2213: 2210: 2208: 2205: 2203: 2200: 2198: 2194: 2191: 2190: 2188: 2184: 2170: 2167: 2165: 2162: 2161: 2159: 2155: 2149: 2146: 2144: 2141: 2140: 2138: 2134: 2131: 2127:Nonblanchable 2125: 2114: 2111: 2109: 2106: 2104: 2101: 2099: 2096: 2094: 2090: 2088: 2085: 2084: 2082: 2078: 2072: 2069: 2067: 2064: 2062: 2059: 2057: 2054: 2052: 2049: 2047: 2044: 2043: 2041: 2037: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2012: 2010: 2006: 2003: 2001: 1995: 1992: 1988: 1985: 1977: 1967: 1964: 1962: 1959: 1957: 1954: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1932: 1929: 1928: 1926: 1924:Hypopigmented 1922: 1916: 1913: 1911: 1908: 1906: 1903: 1901: 1898: 1896: 1893: 1891: 1888: 1886: 1883: 1881: 1878: 1876: 1875:Acne vulgaris 1873: 1872: 1870: 1868: 1864: 1858: 1855: 1853: 1850: 1848: 1845: 1843: 1840: 1838: 1835: 1833: 1830: 1828: 1827:Lichen planus 1825: 1823: 1820: 1818: 1815: 1814: 1812: 1810: 1806: 1800: 1797: 1795: 1792: 1790: 1787: 1785: 1782: 1780: 1777: 1775: 1772: 1770: 1767: 1765: 1762: 1760: 1759:Herpes zoster 1757: 1755: 1752: 1751: 1749: 1747: 1743: 1737: 1734: 1732: 1731:Parapsoriasis 1729: 1727: 1724: 1722: 1719: 1717: 1714: 1712: 1709: 1707: 1704: 1701: 1698: 1696: 1693: 1691: 1688: 1686: 1683: 1681: 1677: 1675: 1672: 1671: 1669: 1667: 1663: 1657: 1654: 1652: 1649: 1647: 1644: 1642: 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1614: 1612: 1609: 1607: 1604: 1602: 1599: 1598: 1596: 1592: 1589: 1581: 1578: 1576: 1572: 1562: 1559: 1557: 1554: 1552: 1549: 1547: 1544: 1542: 1539: 1537: 1534: 1532: 1529: 1527: 1524: 1522: 1519: 1517: 1514: 1512: 1509: 1507: 1504: 1502: 1499: 1498: 1496: 1491: 1487: 1481: 1478: 1476: 1473: 1471: 1468: 1466: 1463: 1461: 1458: 1457: 1455: 1451: 1445: 1442: 1440: 1437: 1435: 1432: 1430: 1427: 1425: 1422: 1420: 1417: 1415: 1412: 1410: 1407: 1405: 1402: 1400: 1397: 1395: 1392: 1391: 1389: 1387: 1383: 1380: 1376: 1367: 1362: 1360: 1355: 1353: 1348: 1347: 1344: 1331: 1327: 1326: 1322: 1320: 1316: 1315: 1311: 1310: 1307: 1303: 1296: 1292: 1291: 1287: 1285: 1281: 1280: 1276: 1274: 1270: 1269: 1265: 1263: 1259: 1258: 1254: 1250: 1248: 1244: 1243: 1239: 1235: 1234: 1231: 1226: 1222: 1207: 1203: 1198: 1193: 1190:(6): 759–62. 1189: 1185: 1184:Arch Dermatol 1181: 1174: 1166: 1162: 1158: 1154: 1150: 1146: 1145:Br J Dermatol 1139: 1131: 1127: 1122: 1117: 1112: 1107: 1103: 1099: 1095: 1088: 1072: 1066: 1051: 1047: 1041: 1033: 1029: 1025: 1021: 1014: 1006: 1002: 997: 992: 987: 982: 978: 974: 970: 963: 955: 949: 941: 935: 931: 924: 922: 915: 911: 910: 904: 902: 895: 891: 890: 884: 869: 867:9783319749037 863: 859: 858: 850: 842: 838: 834: 830: 826: 822: 818: 814: 807: 800: 796: 792: 788: 784: 780: 773: 765: 761: 757: 753: 749: 745: 741: 737: 730: 722: 718: 714: 710: 706: 702: 698: 694: 687: 672: 668: 664: 658: 650: 646: 642: 636: 634: 632: 630: 621: 615: 611: 604: 602: 600: 598: 589: 587:0-07-138076-0 583: 579: 572: 570: 568: 566: 564: 562: 560: 558: 556: 547: 543: 539: 535: 531: 527: 524:(8): 664–77. 523: 519: 512: 508: 494: 490: 485: 480: 475: 470: 466: 462: 458: 448: 444: 434: 431: 430: 424: 415: 413: 409: 399: 397: 393: 379: 375: 372: 368: 364: 360: 356: 354: 351: 350: 346: 342: 341:keratinocytes 338: 335: 332: 331: 327: 325: 322: 321: 317: 314: 311: 310: 306: 304: 301: 300: 296: 292: 288: 285:cells around 284: 280: 277: 274: 273: 269: 266: 263: 262: 258: 255: 252: 251: 247: 244: 241: 240: 237: 229: 227: 223: 222:gold standard 219: 214: 211: 207: 203: 199: 195: 185: 178: 177:H&E stain 174: 170: 161: 159: 149: 147: 143: 139: 135: 131: 127: 123: 118: 116: 112: 108: 107:keratinocytes 104: 100: 90: 86: 82: 80: 76: 73: 70: 68: 64: 61: 56: 52: 47: 43: 39: 34: 26: 22: 3579:Plantar wart 3512: 3351:Spindle-cell 3298:Rodent ulcer 3273:Micronodular 3268:Infiltrative 3017:atrophoderma 2903:Panniculitis 2848: 2833:Carbon stain 2724:Subcutaneous 2518: 2498: 2333:Ingrown nail 1905:Dermatophyte 1900:Gonococcemia 1885:Folliculitis 1526:Neurofibroma 1494:subcutaneous 1403: 1323: 1312: 1288: 1277: 1266: 1251: 1236: 1187: 1183: 1173: 1151:(3): 411–4. 1148: 1144: 1138: 1101: 1097: 1087: 1077:22 September 1075:. 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Index

seborrheic dermatitis
actinic keratosis

Leser–Trélat sign
Specialty
Dermatology
Diagnostic method
benign
keratinocytes
epidermis
liver spots
lesions
scab
basal cell carcinoma
differential diagnosis
warts
melanomas
human papillomavirus
prevalence

Micrograph
H&E stain

lentigo maligna
dermatoscopy
epidermal nevi
Condylomas
warts
squamous cell carcinoma
gold standard

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