[Adenoma of the ciliary epithelium of unusual structure and localisation (authors transl)].

The authors describe an adenoma of the ciliary epithelium of low degree of malignacy. The tumor is clinically and histologically remarkable because of its uncommom site behind the iris and the abundance of mucoid stroma. The clinical data, the course as well as the histological findings are described and compared with the rare similar cases in the literature. Electron microscopic data of this kind of tumor are reported for the first time. The tumor are characterised by basal membranes, microvilli, desmosomes, occasional melanin granules, a well differentiated RER and specially by the massive content of intracytoplasmatic filaments.