Differential Diagnosis in Dermatopathology

Differential Diagnosis

Trichoepithelioma Infundibulocystic basal-cell carcinoma 1. Often large 1. Usually small 2. Often present throughout the dermis and even in the subcutaneous fat 2. Usually confined to the upper part of the dermis 3. No necessary continuity o…

Differential Diagnosis in Dermatopathology

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Dermatology Practical & Conceptual

An atypical pigmented lesion—Quiz Answer

Below find the answer to the quiz by Costa et al. presented in the previous issue of Dermatology Practical & Conceptual (http:dx.doi.org/10.5826/dpc0402a13).   Diagnosis Trichoepithelioma   Congratulations to Dr. Napolitano, who was the first to send us the correct answer!