Search Results for: hyperplasia

A Clinical Atlas of 101 Common Skin Diseases

Hemangiomas, Vascular Malformations, and Ectasias

An hemangioma is a benign neoplasm of blood vessels, a vascular malformation is an aberration in development of one or more major vascular structures, and an ectasia is a dilation of a preexisting end vessel.

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Pseudomalignancies?

…es well differentiated squamous cell carcinoma, it has also been called verrucoid epidermal hyperplasia, pseudocarcinomatous hyperplasia and carcinomatoid hyperplasia.” Kao GF. Benign tumors of the epidermis. In: Farmer ER, Hood AF, eds….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Sebaceous Epithelioma?

…eous lobules clustered around sebaceous ducts that enter a crater formed by contiguous, dilated infundibula. Sebaceous gland hyperplasia is a true hyperplasia because the condition often involutes in the absence of therapy. Sebaceous adenoma is…

Histologic Diagnosis of Inflammatory Skin Diseases

Kimura’s disease

…phils. Laboratory confirmation Peripheral eosinophilia is noted. Cause and mechanism Both are unknown. Comment Angiolymphoid hyperplasia with eosinophilia is reputed by some authors to be synonymous with Kimura’s disease. In actuality, that is…

Differential Diagnosis in Dermatopathology

Discussions

…are the sine qua non for diagnosis of Kimura’s disease, they are present in fewer than 10% of lesions of angiolymphoid hyperplasia. Although there are similarities clinical between angiolymphoid hyperplasia and Kimura’s disease, there…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dysplasia?

…. The five criteria advocated by Clark et al. for recognition of dysplastic nevi, namely, persistent lentiginous melanocytic hyperplasia, atypical melanocytic hyperplasia, lamellar fibroplasia, concentric fibroplasias, and lymphocytic infiltrates,…

Histologic Diagnosis of Inflammatory Skin Diseases

Confusing Terms (to be Avoided Scrupulously)

…e concept of hyperplasia is flawed irreparably and for several reasons. For one, the stimulus responsible for most so-called hyperplasias has yet to be identified, for example, the psoriasiform “hyperplasia” of fully formed psoriasis or…