Malignant mesothelioma presenting as a giant chest, abdominal and pelvic wall mass.

Malignant mesothelioma (MM) is a relatively rare but highly invasive tumor that arises from mesothelial cells of the pleura, peritoneum, pericardium or spermatic sheath. MM may present as the local or diffuse form. A typical MM usually presents as diffuse or multiple pleural or peritoneal nodules, but it rarely presents as a chest or abdominal wall mass. There have been only three cases of pleural or peritoneal MM presenting as a chest or abdominal wall mass reported in the medical literature (1-3), of which one case occurred in the thoracic wall as a local pleural MM, and the other two cases occurred in the abdominal wall. The giant MM reported in this current article simultaneously invaded the chest, abdominal and pelvic walls. To the best of our Malignant Mesothelioma Presenting as a Giant Chest, Abdominal and Pelvic Wall Mass Zhi-hong Shao, MD, Xiao-long Gao, MD, Xiang-hua Yi, MD, Pei-jun Wang, MD Departments of Radiology and Pathology, Tongji Hospital of Tongji University, Shanghai 200065, China