RESUMEN
A macroscopically not sure classifiable solitary tumour on the nipple was observed in a 68 year old man. Histologically a pure leiomyoma was found. Therapy of choice is the tumour resection, if requested.
Asunto(s)
Neoplasias de la Mama/patología , Mama/patología , Leiomioma/patología , Pezones/patología , Anciano , Diagnóstico Diferencial , Femenino , HumanosRESUMEN
The enzyme naphthol-AS-D-chloracetate esterase (NASDCE) was demonstrated histochemically in mast cells of tissues of laboratory animals and men under normal and pathological conditions using the method after Leder (1964). Investigating the possible action of different fixations as Bouin's and Carnoy's fluid as formaldehyde also cryostate sections were studied for comparison. After tissue fixation the activity of the NASDCE is localized strongly in the granules of mast cells. The type of fixation is without influence on the histochemical reaction and localization. Differences concerning the investigated species could not be demonstrated. In benign neoplasias of mast cells such as diffuse (urticaria pigmentosa) and localized cutaneous mastocytosis as well as benign systemic mastocytosis with skin involvement (Sagher) the granule bound reaction is very intensive. The NASDCE can be recommended as a marker for the microscopical localization of mast cells, especially in the histological diagnosis of their benign and malignant neoplasias.
Asunto(s)
Hidrolasas de Éster Carboxílico/metabolismo , Mastocitos/enzimología , Naftol AS D Esterasa/metabolismo , Urticaria Pigmentosa/enzimología , Animales , Arvicolinae , Cricetinae , Gránulos Citoplasmáticos/enzimología , Histocitoquímica , Humanos , Mastocitos/ultraestructura , Mesocricetus , RatasRESUMEN
The acute toxicity (LD50, intraperitoneal in the mouse) of beta-chlorovinyl ketones and aldehydes used as intermediates for organic syntheses was determined and their action on the skin of rodents investigated. Ketones of the type Cl-CH-CH-COR prove to be relatively toxic and display a markedly necrotic action after percutaneous absorption. In comparison with this the isomeric aldehydes Cl-CR-CH-CHO have a lower acute and less markedly cutaneous toxicity. As therapeutic counter action after skin contamination by beta-chlorovinyl carbonyl compounds the immediate treatment with an aqueous ethanolic solution of hexamethylenetetramine is recommendable.