Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermal Papilla?

“Historically, the hair germ has been defined as a group of cells located at the base of the telogen follicle in close contact with the dermal papilla.” Lavker RM, Miller S, Wilson C, et al. Hair follicle stem cells: their location, ro…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Hyalin?

“With the high power the hyaline is seen in very varied forms, which all show the same fuchsin red reaction. The first forms a section by itself; it comprises hyaline balls of different size, which lie free between the epithelial cells, and w…

Histologic Diagnosis of Inflammatory Skin Diseases

Alopecia areata, totalis, universalis

Synonyms Pelade Alopecia circumscripta Presentation stereotypical Age and sex Young males and females equally; familial disposition sometimes Distribution of lesions Hair-bearing skin only, especially the scalp Configuration Round, sometimes polycyc…

Differential Diagnosis in Dermatopathology

Discussions

Common baldness and telogen effluvium are the best known and the most common examples of non-inflammatory alopecia of the two. Common baldness, as its title denotes, is the most common. Those two alopecias of different character and course share sev…