Clinical case of testicular serous papillary tumor with ovarian stroma

Abstract

Serous tumors are rare in the group of non-germ cell testicular tumors, ad are morphologically similar to serous ovarian tumors. Preoperative diagnosis of this tumor is difficult due to the lack of specific signs according to clinical and instrumental research methods. In turn, histological verification of a serous borderline tumor is also a difficult task and requires differential diagnosis, primarily with serous cystadenocarcinoma, which, unlike a serous borderline tumor, can metastasize and is generally characterized by worse prognosis. Immunohistochemical examination allows to exclude other tumors with a similar morphological structure, including mesothelial tumors. Due to the rare occurrence of testicular serous tumors, there is minimal clinical experience in the treatment of these tumors worldwide, and there is still no consensus on guidelines for their treatment. Radical orchiectomy is recommended for patients with border-line serous tumors.This article presents a clinical case of a testicular serous borderline papillary tumor with a discussion of the literature data on the instrumental, morphological, and immunohistochemical characteristics of this rare tumor in men.