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

Confusing Terms (to be Avoided Scrupulously)

…earance. For almost a century, histopathologists used the term hyaline as a synonym for a substance considered by them to be specific and diagnostic of certain diseases, e.g., “toxic hyaline” for erythema elevatum diutinum. It is now appr…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…ppositions at best and flawed interpretations at worst. Error: Hyaline is a specific substance. Reason: Hyaline, in general, refers to brightly eosinophilic refractile material and is not a substance specific unto itself, unlike the situation for amy…

Dermatology Practical & Conceptual

Nodules on the right ear

Case report A healthy 17-year-old boy with a one-year history of asymptomatic, slowly enlarging nodules affecting his right ear was seen. The patient’s past medical history was unremarkable, he was not immunosuppressed, he was not taking any d…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Necrobiosis?

“This latter category, where the cells are destroyed during the course of the process, I proposed a few years ago to designate by a term which has been employed to express disease generally by K. H. Schultz, viz., necrobiosis. Necrobiosis is…