Giant retroperitoneal lipoma presenting with abdominal distention: A case report and review of the literature |
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Authors: | Zhi-Yan Chen Xian-Long Chen Qi Yu Qing-Bo Fan |
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Affiliation: | Zhi-Yan Chen, Qi Yu, Qing-Bo Fan, Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing 100730, ChinaXian-Long Chen, Department of Pathology, Peking Union Medical College Hospital, Beijing 100730, China |
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Abstract: | BACKGROUNDRetroperitoneal lipomas are extremely rare tumors and tend to be large in size (> 10 cm) when diagnosed, causing various clinical manifestations. Preoperative diagnosis of retroperitoneal lipomas is difficult. There is a lack of relevant information about the management and prognosis of these benign tumors due to limited reports.CASE SUMMARYA 53-year-old woman who complained about progressive abdominal distention and aggravating satiety was referred to the gynecological outpatient department of Peking Union Medical College Hospital. Computerized tomography (CT) revealed an immense mass with fat density, measuring 28.6 cm× 16.6 cm in size. Adjacent organs, including the intestinal tract and uterus, were squeezed to the right side of the abdomen. An exploratory laparotomy was performed with suspicion of liposarcoma. Intraoperatively, a giant yellowish lobulated mass was found occupying the retroperitoneum and it was removed by tumor debulking. Postoperative histopathological results confirmed the diagnosis of retroperitoneal lipoma.CONCLUSIONRetroperitoneal lipoma is a very rare condition and is difficult to differentiate from well-differentiated liposarcoma. Radiographic investigations, especially CT and magnetic resonance imaging, are important for preoperative diagnosis. Surgical resection is the fundamental treatment, which is difficult due to its size and relation to neighboring structures. |
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Keywords: | Retroperitoneal lipoma Well-differentiated liposarcoma Retroperitoneal tumors Treatment Prognosis Case report |
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