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We describe the case of a 65 year-old male presenting with a tender right testicular mass, confirmed to be a tumour on ultrasound. The patient underwent a radical inguinal orchidectomy and histology revealed multiple adenomatoid tumours in epididymis and tunica vaginalis. This is an infrequent benign tumour of mesothelial origin that has rarely been reported as multiple lesions in the literature. Immunohistochemistry demonstrates that adenomatoid tumour and mesotheliomas share the expression of podoplanin (D2-40) which is helpful to differentiate them from carcinomas. On the other hand adenomatoid tumour is differentiated from mesothelioma on morphological grounds since the former does not exhibit cellular atypia, mitotic activity or bland focal tumour necrosis. Although testis preserving surgery can be an option for benign adenomatoid tumours, most patients (as in our case) proceed to orchidectomy as diagnosing them confidently can be difficult.---------------------------Cite this article as: Abroaf A, Veeratterapillay R, Vasdev N, Majo J, Sherif AE, Paez E. Multiple adenomatoid tumours in the Epididymis and Tunica vaginalis : Case Report. Int J Cancer Ther Oncol 2014; 2(1):02021.DOI: http://dx.doi.org/10.14319/ijcto.0202.1