Mesenteric Lymphatic Malformation Complicated by Torsion: A Case Report.

Mesenteric lymphatic malformations (MLM) are rare, benign cystic lesions that arise from an abnormal development of lymphatic tissue. They can be complicated by obstruction, volvulus, and the rare occurrence of torsion. We report the case of a 33-year-old woman presenting with abdominal pain, initially suspected to be appendicitis. A contrast-enhanced computed tomography (CT) revealed a heterogeneous mass in the right lower abdominal quadrant over the jejunum mesentery with imaging signs of torsion, suggestive of a lymphatic malformation. Surgical resection and histopathological analysis confirmed the diagnosis. Although more frequent in pediatric patients, these entities can present in adults with varied manifestations. Imaging is crucial for diagnosing and guiding surgical resection, especially in complicated cases. This case highlights mesenteric lymphatic malformations in the differential diagnosis of abdominal pain and the need to assess for complications carefully.