Ann Dermatol.  2011 Feb;23(1):98-100. 10.5021/ad.2011.23.1.98.

Warty Dyskeratoma Involving Two Adjoining Follicles

• Jang EJ
• Lee JY
• Kim MK
• Yoon TY

• KMID: 2171964
• DOI: http://doi.org/10.5021/ad.2011.23.1.98

Abstract

Warty dyskeratoma (WD) is a rare epidermal tumor that frequently arises as a papule or nodule on the head or neck of middle-aged or older persons. Histologically, it shows a cup-shaped keratin-filled invagination of an acanthotic epidermis, suprabasilar clefting with villi projecting into the clefts and acantholytic dyskeratotic cells are also present. The changes almost always involve a single hair follicle. We describe a distinctive case of WD that showed involvement of two adjoining follicles within a solitary lesion.

Keyword

Multiple follicles; Warty dyskeratoma

MeSH Terms

Epidermis
Hair Follicle
Head
Humans
Neck

Figure

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  Fig. 1 A solitary, well-defined, erythematous, hairless nodule with a hyperkeratotic plug on the left parietal scalp.

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  Fig. 2 (A) Two large cup-shaped invaginations containing keratinous material (H&E, ×40). (B) The lower portion of each invagination shows suprabasal clefts and villi with acantholytic dyskeratotic cells. Typical corps ronds in the granular layer and a moderate inflammatory infiltrate consisting of lymphocytes and histiocytes in the dermis are observed (H&E, ×100).

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