Poster Session 5: Interesting Cases

We present a unique case of bilateral malignant mesothelioma of the tunica vaginalis testis in a 68-year-old male, notably representing the first documented instance of contralateral tumor seeding during the index hydrocelectomy prior to making the formal diagnosis.After pathologic confirmation of epithelioid mesothelioma, definitive treatment included bilateral orchiectomy and hemiscrotectomy, and the patient remained disease-free at 18 months of followup.