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  • Title: Intra-abdominal Cystic Lymphangiomas: The Vanderbilt Experience.
    Author: Mede A, Chotai PN, Huh WJ, Tan M.
    Journal: J Surg Res; 2023 May; 285():197-204. PubMed ID: 36696706.
    Abstract:
    INTRODUCTION: Lymphangiomas are rare, cystic tumors that represent congenital malformation of the lymphatic vessels. We reviewed our institution's experience treating abdominal lymphangiomas with the purpose of describing the clinical features, management, and outcomes of this rare pathology. METHODS: This is a single-institution, institutional review board-approved retrospective review of abdominal lymphangiomas presenting between January 2010 and February 2021. The diagnosis of lymphangioma was made on histopathology from either endoscopic or excisional biopsy of the lesion. Demographics, diagnostic imaging, histopathologic characteristics, and outcomes were analyzed. RESULTS: We identified 48 patients, of whom 29 (60%) were female, >18 y (38; 79%), with a mean age of 43 y at the time of diagnosis (range, 4 d-87 y). Tumors ranged in size from <1 cm to 30 cm. Only 1/3 were symptomatic, most commonly with abdominal pain (9; 19%) On preoperative imaging, mural nodules or thickened walls were present in one case, in which pathology was consistent with benign lymphangioma. The majority of lymphangiomas were associated with the small bowel or its mesentery (31; 65%), followed by the colon/omentum (7; 15%). Most patients underwent surgical excision (29; 60%) with incomplete excision in one patient due to extensive local invasion, and three (10%) patients required multivisceral resection. The median duration of the follow-up was 13 mo (range, 1-105 mo), during which time, none of the patients developed malignancy. CONCLUSIONS: Most abdominal lymphangiomas arise from the small bowel and are found incidentally and have a favorable prognosis. Resection should be reserved for symptomatic lesions or when there is a diagnostic uncertainty.
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