von Figura G, Hartmann D, Pauls S, Barth T F E, Adler G, Henne-Bruns D, Kulaksiz H
Department of Internal Medicine I, University of Ulm, Albert-Einstein-Allee 23, Ulm, Germany.
Z Gastroenterol. 2010 Nov;48(11):1301-4. doi: 10.1055/s-0029-1245550. Epub 2010 Nov 1.
Schwannomas are rare tumors, usually benign, originating from the nerve sheath, and found only infrequently in the retroperitoneal space. We report on a 67-year-old woman who was initially misdiagnosed and treated for a liver hydatid cyst. After incomplete resection and recurrence of the tumor, we were able to diagnose a large retroperitoneal schwannoma that completely displaced the liver to the left abdomen. The patient underwent surgical resection of the schwannoma; pathological evaluation revealed a cystic tumor measuring 18.5 × 18 × 12.5 cm, with tumor cells staining strongly positive for S-100. Retroperitoneal schwannomas may mimic cystic hepatic tumors and should, therefore, be considered as a differential diagnosis in such cases. We describe the diagnostic modalities and difficulties in the approach of a cystic liver tumor.
施万细胞瘤是一种罕见肿瘤，通常为良性，起源于神经鞘，仅偶尔见于腹膜后间隙。我们报告了一名67岁女性，最初被误诊为肝包虫囊肿并接受了治疗。肿瘤不完全切除并复发后，我们得以诊断出一个巨大的腹膜后施万细胞瘤，该肿瘤将肝脏完全推移至左腹部。患者接受了施万细胞瘤手术切除；病理评估显示为一个大小为18.5×18×12.5 cm的囊性肿瘤，肿瘤细胞S-100染色呈强阳性。腹膜后施万细胞瘤可能酷似肝囊性肿瘤，因此在这类病例中应将其视为鉴别诊断之一。我们描述了肝囊性肿瘤诊断方法及难点。
