Benign multicystic peritoneal mesothelioma: a case report

Abstract

IntroductionWe report the case of a patient with a benign multicystic peritoneal mesothelioma and describe its appearance on computed tomography scans and ultrasonography, in correlation with gross clinical and pathological findings.Case presentationA 72-year-old Caucasian woman presented to our emergency department with acute abdomen signs and symptoms. A clinical examination revealed a painful palpable mass in her left abdomen. Abdominal ultrasonography and computed tomography demonstrated the presence of a large cystic mass in her left upper abdomen, adjacent to her left hemidiaphragm. The lower border of the mass extended to the upper margin of her pelvis. A complete resection of the lesion was performed. Pathological analysis showed a benign multicystic peritoneal mesothelioma.ConclusionsBenign multicystic peritoneal mesothelioma is a rare lesion with a non-specific appearance on imaging. Its diagnosis always requires pathological analysis.

The Cystic Mesothelioma: case report

“…(Table 1). Its clinical presentation is nonspecific, such as abdominal or pelvic pain, abdominal tenderness, chronic or intermittent distension, abdominal or pelvic mass, increased waist circumference and constipation, as in the case reported [7,8]. Hicham Elbouhaddouti, et al described a similar case in 2013, in which the patient presented abdominal pain, increased waist circumference and constipation [9].…”

“…However, BCM has also been found incidentally during imaging or laparotomy. Patients with BCM had a previous history of abdominal operations (42%), pelvic inflammatory disease (14%), or endometriosis (7%) [8].…”

A case of benign cystic mesothelioma arising from the lesser omentum in a 13-year-old girl treated through a laparoscope excision

“…No relationship has been found between BCM and asbestos exposure, unlike pleural mesothelioma [10]. As to pathogenesis of BCM, neoplastic or reactive change has been postulated [5,[10][11][12][13]. Several common features, such as history of previous surgery, endometriosis, uterine leiomyoma, and inflammation, were reported in the BCM patients, suggesting that the lesion results from reactive changes to chronic irritation.…”

Laparoscopic treatment of retroperitoneal cystic mesothelioma. Two cases reported

“…CT scan is the imaging technique of choice for diagnosis. It demonstrates relations with surrounding structures, usually respecting adjacent organs, and shows a uni or multiloculated cyst, with a thin wall, with neither hemorrhage nor fat, calcifications or solid nodules, with an average size of 13 cm [5], [20], [21]. On MRI, CM typically shows low signal intensity on T1 and high signal intensity on T2, with minimal to mild peripheral and septal enhancement after IV contrast administration [20].…”