Mesenteric cyst manifested as obesity, gastroesophageal reflux, urinary incontinence, and abdominal mass during pregnancy-Case report and literature review.

INTRODUCTION AND IMPORTANCE: The mesenteric cyst (MC) is a rare entity, a benign lesion that causes the growth of an abdominal mass and other clinical presentations. The presentation of MC during pregnancy is even less frequent. CASE PRESENTATION: A 34-year-old Mexican woman presented with a mesenteric cyst treated with laparotomy aspiration during the 16th week of pregnancy; the pregnancy was resolved by cesarean section without problems. Nevertheless, 17 months later, the lesion recurred. New assessment and surgical treatment with complete excision are performed without evidence of further recurrence. CLINICAL DISCUSSION: This case is essential due to the low frequency of association between pregnancy and mesenteric cyst. Incomplete resection, aspiration, and marsupialization of the lesion carry a high risk of recurrence. Therefore, the opportune moment to perform a complete resection of the lesion and avoid complications should be evaluated during pregnancy. CONCLUSION: MC should be considered a differential diagnosis in cystic lesions during pregnancy. Imaging studies, complete surgical resection, histological evaluation, and follow-up are necessary for adequate treatment.