Paratesticular Biphasic Mesothelioma

**Semantic type:** Neoplastic Process

**Definition:** A rare malignant mesothelioma arising from the tunica vaginalis. It is characterized by the presence of epithelioid and sarcomatoid components, with each component representing at least 10% of the tumor.

**Synonyms:** - Testicular Biphasic Mesothelioma - Tunica Vaginalis Biphasic Mesothelioma