Search Results for: hyperkeratosis

Histologic Diagnosis of Inflammatory Skin Diseases


…striking papillomatosis, papillated epidermal acanthosis, and hyperkeratosis in addition to fibrosis. Differential diagnosis histopathologic Scarring of another cause usually is not associated with such prominent thick-walled vessels lined by plump e…

Differential Diagnosis in Dermatopathology

Ichthyosis vulgaris vs. X-linked ichthyosis

A keratotic condition of the palms and soles, inherited usually, but sometimes acquired, in which involvement may be diffuse, circumscribed (including striate), or punctate.

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…s, or a solar keratosis (or an acrokeratosis verruciformis, a hyperkeratosis lenticularis, a keratoacanthoma). Squamous papilloma describes the appearance histopathologic of any digitate or nipple-shaped proliferation of squamous epithelium; it is no…

Histologic Diagnosis of Inflammatory Skin Diseases

“Kyrle’s disease”

…hat condition (or conditions) he actually described as “hyperkeratosis follicularis et parafollicularis in cutem penetrans,” a title that in itself is daunting and dizzying. It is likely, however, that it was not “follicularis&#8221…

Histologic Diagnosis of Inflammatory Skin Diseases

Infundibulitis secondary to agents topical

…ibulitides brought about by other types of factors noninfectious is the presence, concurrent, of comedones. A major provocateur of infundibular hyperkeratosis, i.e., the innumerable corneocytes being the stuff comedones are made of, is machine oils….

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…10. No dull pink globules within the epidermis as a rule 11. Hyperkeratosis, hypergranulosis, and spinous-cell hyperplasia usual 11. Hyperkeratosis not prominent; no hypergranulosis usually; little epidermal hyperplasia 12. No evidence of regression…

Differential Diagnosis in Dermatopathology


…ive patterns of epithelium in the skin, such as epidermolytic hyperkeratosis, focal acantholytic dyskeratosis, cornoid lamellation, and epithelial (follicular) mucinosis. When pale-cell acanthosis occurs in a seborrheic keratosis, for example, the le…