A Case of Penile Cutaneous Horn / 대한피부과학회지

Cutaneous horn is a clinical term for a circumscribed concial hyperkeratotic mass amounts to at least half of its largest diameter. The number of lesion may be single or multiple. We report herein a cases of penile cutaneous horn in a 22-year-old male. He had dark brownish colored conical shaped protruded mass on the penile shaft for about 2 months. We performed excisional biopsy and curettage. Histopathologic findings showed verruca vulgaris.

Confluent and Reticulate Papillomatosis: Treated with an Aromatic Analog of Vitamin A Acid (Ro 10 - 9359) / 대한피부과학회지

Confluent and reticulate papillomatosis is a rare but clinically distinct dermatosis first described by Gougerot and Carteaud in 1927. It consists of dark brown pigmented papules which coalesce to reticulate and confluent patches. It usually begins shortly after puberty mainly in females and is most often localized to the intermammary and interscapular regions. Histological examination shows hyperkeratosis and papillomatosis, and there may be decreased granular cell layer, focal acanthosis, or hypermelanosis of the basal cell layer. We recently observed a 20-year-old male patient who showed typical clinical and histopathological findings of confluent and reticuIate papillomatosis. Treatment with an aromatic analog of vitamin A acid(Ro 10-9359) resulted in dramatic effectivenese.

A Study on the Effect of Antihistamine in Patch Test Reaction / 대한피부과학회지

The patch test reaction is artificially induced allergic contact dermatitis to prove the cause of allergic contact dermatitis. Allergic contact dermatitis is classically regarded as a delayed hypersensitivity composed of the simple cutanous infiltration of lymphocytes and macrophages. Recently several authors observed new morphologic findings in allergic contact dermatitis including infiltration and piecemeal degranulation of basophils, degranulation and replication of fixed tissue mast, cells, increased vascular permeability leading to dermal and epidermal edema, microvascular alterations affecting endothelial cells and pericytes, and activation of the clotting system, with deposition of fibrin in a characeristic inravascular pattern in the reticular dermis. And they proposed new hypotbesis that the vaoactive amines released by basophils and mast cells have the crucial role in eliciting allergic contact dermatitis. We studied the effect of antihistamine on allergic contact dermatitis caused by dinitrochlorobenzene(DNCB). with phenirarnine maleate,(Avil) 136.5mg/d in 15 young adult male persons. Clinically the degree of the skin reaction is decreased in 9 of 15 persons after tie ingestion of pheniramine maleate. and histopathologically the epidermal and dermal changes are ameliorated in accordance with the clinic':1 improvement. Our results indicate that the histamine also participates in the pathogenesis of allergic contact dermatitis.

A Case of Nevus Sebaceus Syndrome Considered as a Neurocutaneous Syndrome / 대한피부과학회지

Nevus sebaceus is an ozganoid nevus of sebaceous differentiation first described by Jydassohn in 1895 and commonly develops on scalp or face as a single lesion. But it may be multiple end extensive, and often associated with abnormallities-convulsion, megtal retardation, neurological defects, skeletal defects, or ocular abnormalities. We have experienced a case of 22-year-old male who has since birth had- multiple nevus sebaceus on she left side of face and trunk, epidermal nevi on parts of the face, and wide nevus spilus and numerous pigmenteri nevi on the left side of trunk and the left upper extremity. He has histories of convulsions and mental retardation. EEG showed minimal abnormality. Skull x-ray and other routine examinations were within normsl limits. We report a case of nevus sebaceus syndrome which may be considered as a neurocutaneous syndrome.