Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…plastic diseases, such as Bowen’s disease and subungual keratoacanthoma; in genodermatoses such as Darier’s disease; and in cystic conditions such as warty dyskeratoma. In all instances, dyskeratosis is an expression of unexpectedly early…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…acrokeratosis verruciformis, a hyperkeratosis lenticularis, a keratoacanthoma). Squamous papilloma describes the appearance histopathologic of any digitate or nipple-shaped proliferation of squamous epithelium; it is not a specific diagnosis. In the…

Dermatology Practical & Conceptual

Dermoscopy of non-pigmented eccrine poromas: study of Mexican cases

…n 1 to 15 years. The clinical differential diagnoses included keratoacanthoma, clear cell acanthoma, larva migrans, amelanotic melanoma and squamous cell carcinoma. The dermoscopic features are presented in Table 1. We found no differences with regar…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Inverted Follicular Keratosis, Tricholemmoma, and Desmoplastic Tricholemmoma?

…eous ducts through hyperplastic (or neoplastic in the case of keratoacanthoma) infundibula. It is not surprising that squamous eddies are seen commonly in resolving verrucae on a face, given the preference of papillomavirus on that site for infundibu…

Differential Diagnosis in Dermatopathology


Keratoacanthomatous verruca vulgaris Verrucous keratoacanthoma