Cystic appearance of a malignant peritoneal mesothelioma by ultrasonography and computed tomography: a case report

Peritoneal mesotheliomas: clinicopathologic features, CT findings, and differential diagnosis

OBJECTIVE

The objective of our study was to illustrate various CT findings of peritoneal mesotheliomas, to review their clinicopathologic features, and to discuss the differential diagnoses.

CONCLUSION

The clinicopathologic features of peritoneal mesotheliomas vary among the subtypes such as malignant mesotheliomas, cystic mesotheliomas, and well-differentiated papillary mesotheliomas, and accordingly, there is a spectrum of CT appearances.

Giant benign cystic mesothelioma: a case report and review of literature

A 28-year-old man was admitted because of weight loss and a huge abdominal mass. The abdominal cavity was filled by a large number of cysts with a maximum diameter of 10 cm as diagnosed by ultrasound and computed tomography. Laparotomy was performed and a 33 kg cystic tumour originating from the peritoneum was resected en bloc. Histopathological work-up showed multiple cysts covered by cubic or flat mesothelial cells with uniform nuclei. The final diagnosis was benign cystic mesothelioma. Twenty-three months after surgical debulking, a follow-up computed tomography scan showed recurrence of the disease. In this report, we describe the characteristics, aetiology and differential diagnosis of this rare lesion.

Giant benign cystic peritoneal mesothelioma: US, CT, and MRI findings

Benign cystic peritoneal mesothelioma (BCPM) is a rare tumor, primarily affecting young women; approximately 130 cases have been described mainly in the pathological and surgical literature. We present imaging findings of a giant BCPM in a male patient and discuss the radiological differential diagnosis with a brief review of the literature.