CUTANEOUS CILIATED CYST WITH ASSOCIATED APOCRINE-LIKE CELLS

The cutaneous ciliated cyst (CCC) is a rarely reported lesion: only 21 cases have been reported since its first description by Clark in 1969 . The cyst occurs in genitally mature women in the lower part of the b ody, mainly in the thigh and the buttock. It is lined with a ciliated cuboidal epithelium that resembles tubal epithelium. Its connective ti ssue contains no muscular fibers. CCC is considered as a heterotopia o f the ducts of Muller. The authors report a new case of CCC situated i n the buttock in a 17-year-old African girl. Histological examination of the cyst revealed an association of ciliated cells and apocrine-loo king cells. An immunohistochemical study of the cystic epithelial cell s showed the presence of oestrogen and progesterone receptors which is compatible with a Mullerian origin.