[Papillomatous cystic para-ovarian blastoma with lymphoid stroma]

The morphological and clinical findings of a papillomatous cystic para-ovarian blastoma are reported. A 48-year old patient had a hysterectomy and partial right salpingectomy in 1974. In 1980 at now age 54 the remaining appendages right and left were removed. The histologic examination of the remaining right appendages showed in the mesorovarium a 17 x 15 x 12 mm diameter papillomatous cystic para-ovarian blastoma with abundant formation of psammoma bodies and numerous lymph follicles in the stroma. The left ovary showed a papillomatous, fibromatous, serous cystadenoma. The aetiology of the papillomatous cystic para-ovarian blastoma is unknown. A relationship to the prior right salpingectomy is unlikely. The concommitant findings of a papillomatous fibromatous serous cystadenoma of the left ovary is suggestive of a tumour diathesis of the mesonephric system in this case.