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Year : 2014  |  Volume : 10  |  Issue : 2  |  Page : 368-370

Retroperitoneal ancient schwannoma: Two cases and review of literature

1 Department of Surgical Oncology, Yashoda Cancer Institute, Hyderabad, Andhra Pradesh, India
2 Department of Pathology, Yashoda Hospitals, Hyderabad, Andhra Pradesh, India

Correspondence Address:
Ranganath Ratnagiri
Division of Surgical Oncology, Yashoda Cancer Institute, Raj Bhavan Road, Somajiguda - 500 082, Hyderabad, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-1482.136660

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Ancient Schwannomas are rare variants of tumors which arise from the peri-neural Schwann cells. These tumors are termed "ancient" because of the degenerative features acquired with increasing age in these tumors. They are benign, slow growing and usually detected only incidentally or due to local symptoms. Some tumors may demonstrate nuclear atypia, and may be mistakenly termed malignant. Malignant change is usually associated with von Recklinghausen's syndrome in 5% to 18% of cases. Retroperitoneal schwannomas account for only 0.5% to 5% of all cases and are extremely uncommon. They are well encapsulated and recurrences following complete surgical excision are uncommon.

Abstract in Chinese

2例腹膜后古老神经鞘瘤:报告及文献回顾 摘要 古老神经鞘瘤是从周围神经的雪旺氏细胞产生的肿瘤罕见变异体。这些肿瘤被称为“古老”因为在这些肿瘤中退行性功能获得性随着年龄而增加。这种类型肿瘤通常为良性的,生长缓慢,多为偶然或由于局部症状发现。其中一些肿瘤可显示核异型,并可能被错误地称为恶性。5%至18%的病例中,恶性变化通常与von Recklinghausen氏综合征相关。腹膜后神经鞘瘤只占0.5%到5%非常少见,一般包膜完整,手术切除后极少复发。 关键词:古老,腹膜后腔,神经鞘瘤

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