Seema Rao

A Rare Testicular Serous Cystadenocarcinoma Diagnosed in a Retroperitoneal Lymph Node Dissection Specimen With a Review of the Literature

Ovarian-type epithelial tumors of the testicular and paratesticular tissue are rare tumors that histologically resemble their ovarian counterparts. These tumors pose significant diagnostic challenges, especially to general pathologists, and may be misdiagnosed as the more commonly encountered germ cell tumors or mesotheliomas, if an appropriate immunohistochemistry panel is not applied. In this case report, we describe a serous cystadenocarcinoma in the retroperitoneal lymph node dissection specimen which was initially misdiagnosed in the primary testicular tumor as a germ cell tumor at an outside center, thus emphasizing the role of the pathologist in critically evaluating the histomorphological findings and applying a comprehensive immunohistochemistry panel to argue against the differential diagnoses at this site and reach the correct diagnosis.

A Curious Case of Omental Oxalate Crystals in a Patient With Struma Ovarii: Pointers to an Unusual Clinicopathological Scenario

Percutaneous image-guided biopsies are becoming increasingly common in routine pathology practice, with the greater omentum emerging as a common target. We present herein an account of a middle-aged lady with a complex ovarian mass, omental thickening, and raised serum CA125; clinically suspected to have advanced ovarian malignancy. Fine needle aspiration cytology (FNAC) from the ovarian mass was inconclusive. Omental biopsy revealed only refractile, birefringent crystalline material with surrounding foreign body giant cell reaction; thus surprising the clinical team. Subsequent resection of the ovarian mass showed a teratoma composed exclusively of thyroid tissue, diagnosed as struma ovarii. The omental crystals, interpreted as calcium oxalate crystals, were possibly a consequence of colloid seeding during the ovarian mass FNAC.