WELL-DIFFERENTIATED PAPILLARY MESOTHELIOMA OF TUNICA VAGINALIS TESTIS: A RARE CASE REPORT

Dr. Rajeev Sen, Dr. Bharti Sharma, *Dr. Ritesh Kumar Sheorain, Dr. Nikita Prasad and Dr. Pushpa Bisht

ABSTRACT

Well-differentiated papillary mesothelioma (WDPM) of the tunica vaginalis testis originates from mesenchymal tissue; only 0.3%–5% of all cases of mesothelioma affect the tunica vaginalis. Most WDPM originate in the abdominal or pelvic peritoneum of young females. Mesothelial lesions of the paratesticular region include meso-thelial cysts, reactive mesothelial hyperplasia, well-differentiated papillary mesothelioma (WDPM), and malignant mesothelioma (MM). WDPM is considered benign with an indolent clinical behavior, mimicking other benign pathologies of the scrotum as hydrocele. WDPM of the scrotal sac was first described in the literature by Barbera and Rubino; only 20 cases have been reported so far. We reported a case of well differentiated papillary mesothelioma of tunica vaginalis testis in an orchidectomy specimen from a 77 years old patient. The patient came with complaint of bilateral testicular swelling. He was a followed up case of high grade carcinoma prostate. Bilateral orchidectomy was performed and one of the testis showed WDPM of tunica vaginalis.

Keywords: WDPM, tunica vaginalis, testis, testicular swelling.