Warty dyskeratoma is a rare, benign, epithelial tumour.

According to some authors, majority of these lesions display overall histopathologic features consistent with a follicular adnexal neoplasm. On the basis of this finding, the term follicular dyskeratoma has been suggested.

These are rare usually solitary lesions with an umbilicated center.

Age:  Usually occur in middle aged or elderly patients.

Site:   Located on the head and neck region.

Microscopic features: Image Link1 ; Image Link2 ; Image Link3 .

Histology reveals cup shaped, well circumsribed lesion characterized by suprabasilar clefting , acantholysis, dyskeratosis and keratinous plug. Villi protrude into the lacuna.  Villi are dermal papillae lined by basal cells and contain inflammatory cells and dilated blood vessels.

 IMAGE LINK1  ;  IMAGE LINK 2

Note:   Acantholytic dyskeratosis is a histopathologic pattern defined by a hyperkeratotic and parakeratotic epidermis with intraepidermal clefts containing acantholytic and dyskeratotic keratinocytes. These features may be present in Warty dyskeratoma ; Darier disease ; Grover disease ; Hailey Hailey disease ; Acantholytic and dyskeratotic epidermal nevus, Focal acantholytic dyskeratosis ; Acantholytic solar keratosis ; Vulval and anal acantholytic dyskeratosis.

Skin Tumours Skin Adnexal (Appendage) Tumours Benign Sweat Gland Tumours Apocrine/Eccrine Hidocystoma Hamartomas Chondroid syringoma Syringoma Syringocystadenoma Papilliferum    Hidradenoma Papilliferum  Nipple Adenoma Cylindroma   Spiradenoma Poroma  Hidradenoma Papillary Eccrine Adenoma Apocrine Adenoma Normal Histology of Skin Glossary  Gross examination of the skin specimen Reporting of biopsies taken for Inflammatory Skin Diseases Lichenoid (Interface)Tissue Reaction Pattern Psoriasiform Reaction Pattern Vesiculobullous Reaction Pattern Spongiform Reaction Pattern Vasculopathic Reaction Pattern Lichen planus-like lesions Bullous Pemphigoid Dermatitis Herpetiformis Hailey-Hailey Disease