Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran.
Arch Iran Med. 2013 Jul;16(7):436-8.
Mesenteric cysts are heterogeneous groups of lesions. Most of them are developmental cysts of lymphatic and enteric origin or cystic neoplasm such as mesothelioma or cystic teratoma. Urogenital cysts are a subcategory of developmental cysts of the mesentery. They are thought to arise from vestigial remnants of urogenital apparatus. These cysts may show evidence of mesonephric or metanephric differentiation. An 11 -year -old boy was presented with undescended testis. During preoperative work- up, an incidental cystic lesion was discovered which was attached to the ileum. Aspiration cytology of the cyst content revealed cuboidal to columnar cells; some of them were ciliated. Histologic examination showed a cyst with fibromuscular wall, lined by Mullerian type ciliated epithelium; so the diagnosis of urogenital mesenteric cyst of Mullerian type was made. Urogenital cysts are rare lesions, but they should be considered in differential diagnosis of any cystic lesion of the mesentery. Cytology could be a useful method for evaluation and revealing the nature of these cysts.
肠系膜囊肿是一组异质性病变。它们大多是淋巴管和肠源性的发育性囊肿，或间皮瘤或囊性畸胎瘤等囊性肿瘤。泌尿生殖系统囊肿是肠系膜发育性囊肿的一个亚类。它们被认为是泌尿生殖器官遗迹的残余物。这些囊肿可能有中肾或后肾分化的证据。一名 11 岁男孩因隐睾就诊。在术前检查中，发现一个与回肠相连的偶然囊性病变。囊肿内容物的抽吸细胞学检查显示出立方到柱状细胞；其中一些有纤毛。组织学检查显示一个纤维肌肉壁的囊肿，内衬 Müller 型纤毛上皮；因此，诊断为 Müller 型泌尿生殖系肠系膜囊肿。泌尿生殖系统囊肿是罕见的病变，但在鉴别诊断肠系膜的任何囊性病变时都应考虑到它们。细胞学可能是评估和揭示这些囊肿性质的有用方法。
