BACKGROUND We are a reporting a rare case of retroperitoneal schwanomma with atypical pre and postoperative manifestations. Retroperitoneal schwannomas are rare tumors that are difficult to preoperatively diagnose. CASE PRESENTATION This is a case report of a male patient, 41 years old, with symptoms of hipogastric and lower right member pain, as well as a history of a papilliferous thyroid tumor. Computerized tomography exams were inconclusive, showing a mass in the presacral region with dimensions of 4.4 × 3.9 × 3.4 cm. Removal was carried out by laparoscopic surgery, with self-limited postoperative complications. Diagnosis was carried out by anatomopathological examination, and syndromic hypotheses were discarded. CONCLUSIONS The postoperative complications of schwanomma are little reported in the literature. In the simultaneous occurrence of schwanomma and other endocrine tumors, further studies are warranted to better differentiate the cases that need investigation of syndromic causes.

中文翻译：

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腹腔镜切除腹膜后腹膜前神经鞘瘤：非典型的术前和术后表现-病例报告。

背景我们报道了罕见的腹膜后神经鞘瘤伴非典型的术前和术后表现的病例。腹膜后神经鞘瘤是罕见的肿瘤，术前难以诊断。病例介绍这是一名41岁的男性患者的病例报告，该患者患有胃胃和右下肢疼痛的症状，并有甲状腺乳头状甲状腺癌的病史。电脑断层扫描检查尚无定论，显示s前区域有一块肿块，尺寸为4.4×3.9×3.4 cm。腹腔镜手术切除，术后并发症自限。通过解剖病理学检查进行诊断，并删除综合征假说。结论文献报道神经鞘瘤的术后并发症很少。