A rare case report on bilateral scrotal lipoma — the largest tumor in Vietnam

Scrotal lipoma is benign and still, one of the rarest cancers, with very few cases previously reported in the world. The exact pathogenesis of lipomas remains unknown. Scrotal lipomas can be classified into three categories based on their origins: scrotal lipoma, spermatic cord and tunica vaginalis tumor, and primary scrotal lipoma. The disease may be misdiagnosed or diagnosed inaccurately. We present a case of a 46-year-old male with a giant bilateral scrotal lipoma presenting as scrotal swelling and discomfort, which was first diagnosed as an inguinal hernia. Computed tomography, ultrasound, and fine needle aspiration were performed and aroused a suspicion of lipoma. An operation was performed, and the tumor was completely excised and histologically confirmed as a lipoma. To our knowledge, this is the largest scrotal tumor reported in Vietnam, which led to not only diagnostic but also treatment challenges. Therefore, it is significant to report similar cases that can help clinicians diagnose and handle such tumors in a timely manner.