Histopathology of canine sweat gland neoplasms

Son, Yong-sung; Chae, Chan-hee

Korean Journal of Veterinary Research 1995;35(2):353-360.

Yong-sung Son, Chan-hee Chae

College of Veterinary Medicine, Seoul National University

개의 땀샘에서 유래되는 종양의 병리조직학적 연구

손용성, 채찬희

서울대학교 수의과대학

Abstract

Gross and light microscopic findings are described for 34 canine sweat gland neoplasms including tumors derived from apocrine gland in anal sac and ceruminous gland in ear. Affected dogs are usually 5.2 years and sex predilection have not been seen. Sweat gland carcinoma(n=19) is predominant type for sweat gland neoplsm, while papillary syringadenoma(n=2) and spiradenoma(n=2) are rare type in this study. Distinct patterns identified in cutaneous sweat gland carcinoma are tubular(n=7), solid(n=5), mixed(n=4), papillary(n=2) and signet-ring(n=1). Mixed tumors which are characterized by myxomatous and chondroid metaplasia are seen in cutaneous sweat and ceruminous gland. The carcinoma derived apocrine gland of the anal sac induces humoral hypercalcemia of malignancy in two dogs in this study. Histologically, apocrine gland carcinoma of the anal sac has distinct rossette formation.

Key Words: dog, neoplasm, skin, sweat gland tumor