Q: Mesothelioma can occur in which other organ beside pleura, pericardium and peritoneum? 


Answer: Testicles (Tunica Vaginalis layering)

Malignant mesothelioma is a tumor which arises in body cavities lined by mesothelium. Mostly these tumors are detected in the pleura, peritoneum and pericardium. As the tunica vaginalis is a layer of reflected peritoneum, mesothelioma can occur in the scrotal sac. The nonspecific symptoms and lack of tumor markers make diagnosis of malignant mesothelioma of the tunica vaginalis very difficult.