2021 Volume 54 Issue 2 Pages 141-148
An 83-year-old man was admitted to our hospital with abdominal pain and swelling around his left groin. A physical examination and contrast-enhanced CT showed an incarcerated femoral hernia and multiple intraabdominal tumors. Emergency surgery was performed and this revealed that the small intestine was incarcerated in the left inguinal ligament, along with an oval-shaped tumor. The hernia was repaired and the tumor was resected. Histology and immunostaining revealed a biphasic malignant peritoneal mesothelioma (MPM). Although the patient was discharged in good condition on postoperative day 8, he returned to hospital with bowel obstruction on day 16 and died on day 26. Malignant mesothelioma is a rare disease arising from mesothelial cells covering the body cavities. It can develop from the pleura, peritoneum, pericardium, and tunica vaginalis of the testis. MPM accounts for 10–20% of all mesotheliomas and is difficult to diagnose because it usually presents with non-specific symptoms. In this case, we report a case of MPM that was diagnosed incidentally with an incarcerated left femoral hernia.
