Benign multicystic mesothelioma

Abstract

Introduction: multicystic mesothelioma is a rare neoplasm that affects the peritoneum or extraperitoneal space, the omentum and the abdominal or pelvic viscera. It is derived from the cells of the lining of the pleura or peritoneum. The majority of mesenteric masses correspond to intra-abdominal secondary processes. The primary origin is rare, as well as its manifestations.

Objective: to present an atypical case of benign multicystic mesothelioma diagnosed through imaging studies.

Presentation of the case: female patient, of white skin color and 47 years old, with a history of type II diabetes mellitus of 10 years of evolution. She came to the clinic for presenting diffuse abdominal pain, predominantly in the epigastrium and mesogastrium areas. During the physical examination the abdomen was slightly distended and painful on palpation in the epigastrium and part of the mesogastrium. Complementary examinations were carried out and in the imaging studies, a mass of multicystic aspect was observed in the mesentery, with little vascularization and projected in front of the stomach.

Discussion: The symptomatology is nonspecific with subacute or chronic pain, sensation of fullness, increase of the abdominal perimeter and palpable mass. Many cases are findings identified by incidental imaging studies or during surgical procedures when treating other diseases.

Conclusions: imaging methods were essential for the diagnosis and evaluation of this mesenteric condition, especially abdominal ultrasound, high field magnetic resonance imaging and computed tomography. Through them it was possible to assess the extent of the lesion and the organs involved in the process, as well as to differentiate it from other possible diagnoses