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Image Number 637 (Warty Dyskeratoma)


Diagnosis: Warty Dyskeratoma

Site: Leg

Sex: F

Age: 60

Type: Clinical and Histology

Description: Small nodule on calf

Submitted by: Ian McColl

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Differential Diagnosis


Keratotic lesion on the leg which has been irritable.Dermatoscope image suggests dermatofibroma but unlikely clinically.Sections show a warty dyskeratoma. There is a keratin plugged invagination in which there is acantholytic dyskeratosis and suprabasalar clefting. There is no evidence of malignancy.
Warty dyskeratomas are usually solitary lesions most commonly seen on the face.They have this pore like centre which may be extruded in the rare oral variant.

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