Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine, Apocrine, and Apoeccrine Sweat Glands?

“Evidence is presented that in adult human axillae there exists a third type of sweat gland tentatively designated as the apoeccrine sweat gland. This type of gland shows a segmental or diffuse apocrinelike dilatation of its secretory tubule…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Degeneration Syndrome?

“An irreversible alopecia of the scalp occurs in negro women who straighten their hair with hot combs. The disease is common and distinctive, clinically and histopathologically. . . . Hot petrolatum used with the comb causes a chronic inflamm…

Histologic Diagnosis of Inflammatory Skin Diseases

Erysipelas

Erysipelas Synonyms St. Anthony’s fire Ignis sacer Erysipele Erysipela Presentation stereotypical Age and sex Any age and either sex, but with a predilection for older persons with diabetes, peripheral vascular disease, and abuse of alcohol…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

“The results also show that inflammation in MPA [male pattern alopecia] is a relatively consistent finding and that, although often insignificant, this frequently leads to an inflammatory folliculitis, perifollicular fibrosis, and unusually…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eczema?

“Eczema is that which looks like eczema.” Hebra F. Kaposi M. Lehrbuch der Hautkrankheiten. Bd, 2. Aufl. Erlangen: Enke, 1874:403-93. “In Anglo-American usage, the term dermatitis is being used increasingly for all these conditi…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.36.1A: Diffuse dermatitis, mixed-cell, and pseudocarcinomatous proliferation of keratocytes + 10.36.1B: Amphophilic ovoid bodies in the cytoplasm of infundibular keratocytes = Milker’s nodule Changes identical with these a…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Endothelial Swelling?

“In PLEVA, the more severe form, one observes vascular changes consisting of a pronounced mononuclear infiltrate around capillaries, with the capillaries showing endothelial swelling and permeation of their walls by the infiltrate. This usua…