Differential Diagnosis in Dermatopathology

Apocrine mixed tumor vs. Eccrine mixed tumor

A benign neoplasm of apocrine ductal nature within the upper half of the dermis that manifests itself clinically as tiny, smooth, skin-colored, round or oblong papules that usually are situated in periorbital skin, but may be seen on other sites, su…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Diabetic Dermopathy?

…athy, nor do we observe any sign of vasculitis. In their study of changes histopathologic of diabetic dermopathy, Binkley, Gerolds, and Stoughton found … thick-walled capillaries in the upper dermis. The endothelial cells are prominent. The adv…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dandruff a Disease?

….” The stratum disjunctum represents histologic evidence of exfoliation of cornified cells from normal skin. In actuality, dandruff is simply the visible gross expression of the “stratum disjunctum.” It is constituted of orthokerato…