Search Results for: hyperplasia

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…ent.” From L, Assaad D. Neoplasms, pseudoneoplasms, and hyperplasia of supporting tissue origin. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in General Medicine, 4th ed. New York, NY: McGraw-Hill International Book Co, 1993:…

Differential Diagnosis in Dermatopathology

Discussions

…osacea, bulbous enlargement of a nose results from tremendous hyperplasia of sebaceous lobules and formation of many infundibular cysts that rupture, thereby sending contents of infundibula into the dermis and inducing suppurative granulomatous infla…

Differential Diagnosis in Dermatopathology

Pyogenic granuloma vs. Bacillary angiomatosis

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

Cutaneous Horn?

…ion that avoids the crucial issue of whether a condition is a hyperplasia (e.g., verruca vulgaris), a benign neoplasm (e.g., seborrheic keratosis), or a malignant neoplasm (e.g., solar keratosis). Clinicians cannot treat patients competently if histo…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…the nose by a combination of infundibular cysts and sebaceous hyperplasia (rhinophyma). Pyoderma gangrenosum often starts out as suppurative infundibulitis and galvanizes to become extensive suppurative dermatitis and panniculitis. Halogenodermas beg…

Ocular Inflammation

Ocular Inflammation

…he ocular surface.”[18] Occasionally extensive squamous hyperplasia of the Meibomian duct has been reported in rosacea.[19] Zengin et al., in 1995, confirmed again that patients with what they diagnosed as “Meibomian gland dysfunction&#82…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…response to longstanding rubbing. Instead of jagged epidermal hyperplasia, which is expected in papules of lichen planus, there is bulbous infundibular acanthosis, which is an accompaniment anticipated of lichen simplex chronicus and prurigo nodulari…

Histologic Diagnosis of Inflammatory Skin Diseases

Mycosis fungoides

…gie 1890;10:404-12. Vakilzadeh F, Brocker EB. Syringolymphoid hyperplasia with alopecia. Br J Dermatol 1984;110:95-101. Van Doorn R, Scheffer E, Willemze R. Follicular mycosis fungoides, a distinct disease entity with or without associated follicular…