Search Results for: cysts

Differential Diagnosis in Dermatopathology

Dilated pore vs. Pilar sheath acanthoma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…irm papules, and on 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…

Differential Diagnosis in Dermatopathology

Discussions

…that have been compared to the shape of a tadpole. Cornifying cysts and calcification are common features of syringoma, but not, as a rule, of metastases from carcinoma. Clinically, syringomas are small, yellowish-tan papules on lower eyelids, but th…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Myxoma?

…: CV Mosby Co., 1989:1607. “Two types of digital mucous cysts exist. One type is analogous to focal (popular) mucinosis and represents a myxoma.” Lever WF, Schaumburg-Lever G. Tumors of fibrous tissue. In: Histopathology of the Skin. 7th…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…esicles, bullae, pustules, plaques, atrophic plaques, wheals, cysts. Secondary (modified) lesions: scales (desquamation), crusts (scabs), erosions, ulcers, fissures, excoriations.” Goodheart HP. Illustrated glossary of basic skin lesions. In: G…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nd hairs, is encountered in the vicinity of some infundibular cysts that have ruptured. 10.38.9A: Nodular dermatitis, granulomatous + 10.38.9B: Histiocytes, many of them multinucleate, contiguous with suture = “Suture granuloma” Suture, l…