[Fibroadenoma of the paraurethral glands. Immunohistochemical study].

A sub-urethral tumour presenting the architecture of a fibroadenoma and of which the tubular structures were lined with a transitional type epithelium, was described under the term of fibroadenoma of the para-urethral glands. The immunohistochemical study described contributes to bring supplementary arguments in favour of this hypothesis, in showing the presence of numerous argyrophil cells, rich in serotonin, as well as some cells marked by an anti-prostatic acid phosphatase serum. We noted also, with surprise, the presence of some rare cells stained by the anti-calcitonin serum.