Papillary Cystadenoma of the Sweat Gland (Hidradenoma) in a Ewe

(A. A. Gameel and R.O. Ramadan )

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Abstract

Sweat glands are tubular coiled glands distributed widely in the skin. They are lined by cuboidal or pyramidal epithelium with myoepithelial cells located between the secretory cells and basement membrane. They are most active in horses and least active in goats and cats (1). Tumours arising from.sweat glands have been first decribed in humans in 1859 while in animals, the first case was described in a dog in 1906 (2). Subsequently, substantial information about these tumours has accumulated. The tumours are more frequent in dogs, few in cats and rare in other animals; only one case being reported in a bull (3,4,5,6).

The following communication describes a sweat 'gland papillary cystadenoma in a ewe in Saudi Arabia.

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