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Abstract：
BACKGROUND: Cystic lymphangioma is rare benign tumor that results from a lymphatic system malformation. The mesenteric location is even more uncommon.
METHODS: We report the case of a menopausal 63-year-old woman who presented with a persistent painful well-defined mass of the pelvis. On ultrasound and computed tomography, the mass appeared as thick-walled unilocular homogenous cyst in favor of an ovarian cystadenoma. During laparotomy, the misdiagnosis was confirmed as the tumor was found to be embedded in the mesentery of the ileum. Subsequent histopathological examination confirmed the benign cystic lymphangioma diagnosis.
CONCLUSIONS: Mesenteric cystic lymphangioma is rare peritoneal tumor of the adult. Clinically, it often masquerades as other abdominopelvic masses like ovarian cysts. Differential diagnosis is often challenging because of the overlapping clinical abdominal presentation and radiological features. Histopathological is the gold standard in diagnosing mesenteric cystic lymphangioma. Surgery is the mainstay treatment, and the recurrence rate is low if negative surgical margins are achieved.
CONCLUSIONS: Mesenteric cystic lymphangioma often mimics more frequent and potentially malignant lesions. It is essential for surgeons to remain vigilant for the possibility of this diagnosis when evaluating abdominopelvic cystic masses.
METHODS: We report the case of a menopausal 63-year-old woman who presented with a persistent painful well-defined mass of the pelvis. On ultrasound and computed tomography, the mass appeared as thick-walled unilocular homogenous cyst in favor of an ovarian cystadenoma. During laparotomy, the misdiagnosis was confirmed as the tumor was found to be embedded in the mesentery of the ileum. Subsequent histopathological examination confirmed the benign cystic lymphangioma diagnosis.
CONCLUSIONS: Mesenteric cystic lymphangioma is rare peritoneal tumor of the adult. Clinically, it often masquerades as other abdominopelvic masses like ovarian cysts. Differential diagnosis is often challenging because of the overlapping clinical abdominal presentation and radiological features. Histopathological is the gold standard in diagnosing mesenteric cystic lymphangioma. Surgery is the mainstay treatment, and the recurrence rate is low if negative surgical margins are achieved.
CONCLUSIONS: Mesenteric cystic lymphangioma often mimics more frequent and potentially malignant lesions. It is essential for surgeons to remain vigilant for the possibility of this diagnosis when evaluating abdominopelvic cystic masses.
摘要：
背景：囊性淋巴管瘤是由淋巴系统畸形引起的罕见良性肿瘤。肠系膜位置更不常见。
方法：我们报告了一例63岁的绝经女性，她表现为骨盆的持续性疼痛明确肿块。关于超声波和计算机断层扫描，肿块表现为厚壁单眼同质囊肿，有利于卵巢囊腺瘤。在剖腹手术中,由于发现肿瘤包埋在回肠肠系膜，因此误诊。随后的组织病理学检查证实了良性囊性淋巴管瘤的诊断。
结论：肠系膜囊性淋巴管瘤是成人罕见的腹膜肿瘤。临床上,它经常伪装成其他腹盆腔肿块，如卵巢囊肿。由于重叠的临床腹部表现和放射学特征，鉴别诊断通常具有挑战性。组织病理学是诊断肠系膜囊性淋巴管瘤的金标准。手术是主要治疗手段,如果手术切缘阴性，复发率较低。
结论：肠系膜囊性淋巴管瘤通常模仿更频繁和潜在的恶性病变。在评估腹盆腔囊性肿块时，外科医生必须对这种诊断的可能性保持警惕。
方法：我们报告了一例63岁的绝经女性，她表现为骨盆的持续性疼痛明确肿块。关于超声波和计算机断层扫描，肿块表现为厚壁单眼同质囊肿，有利于卵巢囊腺瘤。在剖腹手术中,由于发现肿瘤包埋在回肠肠系膜，因此误诊。随后的组织病理学检查证实了良性囊性淋巴管瘤的诊断。
结论：肠系膜囊性淋巴管瘤是成人罕见的腹膜肿瘤。临床上,它经常伪装成其他腹盆腔肿块，如卵巢囊肿。由于重叠的临床腹部表现和放射学特征，鉴别诊断通常具有挑战性。组织病理学是诊断肠系膜囊性淋巴管瘤的金标准。手术是主要治疗手段,如果手术切缘阴性，复发率较低。
结论：肠系膜囊性淋巴管瘤通常模仿更频繁和潜在的恶性病变。在评估腹盆腔囊性肿块时，外科医生必须对这种诊断的可能性保持警惕。
