A Clinical Atlas of 101 Common Skin Diseases

Pyogenic Granuloma

A red, often ulcerated, boggy papule that represents a hyperplasia of small cutaneous vessels which are “fed” by an arteriole in the subcutaneous fat, the lesion resulting consistently from external trauma, usually in the form of a punct…

A Clinical Atlas of 101 Common Skin Diseases

Molluscum Contagiosum

A hyperplasia of infundibular epithelium consequent to the effects of infection by a pox virus and manifesting itself clinically as one or more skin-colored, smooth-surfaced, dome-shaped papules, each with a central umbilication filled with horny ma…

A Clinical Atlas of 101 Common Skin Diseases

Kaposi’s Sarcoma

A systemic disease, which manifests itself in the skin first as violaceous macules and patches that tend to progress to papules and plaques, and sometimes to nodules and tumors, all of which represent hyperplasia of endothelial cells….

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?

…the terms pseudocarcinoma on one hand and pseudocarcinomatous hyperplasia on the other. The former is a clumsy attempt to render a diagnosis with specificity, whereas the latter is a description of epithelial adnexal hyperplasia, the outline of whic…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Sebaceous Epithelioma?

…al pathology, and dermatopathology consists of sebaceous gland hyperplasia, sebaceous adenoma, sebaceous epithelioma, and sebaceous carcinoma. It is easy to define sebaceous gland hyperplasia, sebaceous adenoma, and sebaceous carcinoma histopathologi…

Histologic Diagnosis of Inflammatory Skin Diseases

Kimura’s disease

…d. 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 not the case. Angiolymphoid hyperplasia with eosinophils is a…

Differential Diagnosis in Dermatopathology

Discussions

…res of adnexa. Despite these elements in common, angiolymphoid hyperplasia with eosinophilia and Kimura’s disease are distinguished easily from one another at scanning magnification. Angiolymphoid hyperplasia with eosinophilia is typified by ve…