Differential Diagnosis in Dermatopathology

Discussions

…or in tenacious sinus tracts of “acne conglobata.” Comedones traditionally have been described as “open” (blackheads) or “closed” (whiteheads). In actuality, a comedo is simply dilation of an infundibulum as a cons…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another. The term keratosis pilaris refers to the phenomenon when it presents itself without any distinct arrangement of individual lesions, whereas the desi…

Dermatology Practical & Conceptual

Papillary adenocarcinoma in situ of the skin: report of four cases

Abstract Although rare isolated cases of adenocarcinoma in situ of skin have been reported in the literature, adenocarcinoma in situ of skin as a concept and as a diagnostic category has not been established in the field of dermatopathology. In this…