Ribeiro Sara Filipa Teixeira, Queirós Tatiana, Amorim José M, Ferreira Ana M, Sales-Sanz Marco
Orbit and Oculoplastic Surgery Unit, Ophthalmology Department, Hospital de Braga, School of Health Sciences, University of Minho, Braga, Portugal.
Ophthalmology Department, Hospital Lusíadas, Porto, Portugal.
Case Rep Ophthalmol. 2017 May 8;8(2):294-300. doi: 10.1159/000473697. eCollection 2017 May-Aug.
Schwannomas are rare lesions of the orbit that can be confused with cavernous hemangioma on imaging studies. We report the case of an 84-year-old woman with a 9-year history of a tumoral lesion in the inferolateral left orbit. The imaging studies did not reveal specific characteristics, only bone remodeling due to the long evolution of the tumor. The patient underwent complete excision of the tumor by anterior orbitotomy via the inferior conjunctival fornix. The histopathological examination revealed an ancient schwannoma, a variant of schwannoma with uncommon histological features. The follow-up was uneventful. The present case emphasizes the importance of considering neural tumors in the differential diagnosis of orbital masses with bone changes and degenerative alterations such as hemorrhagic areas, cysts, and/or calcifications.
施万细胞瘤是眼眶罕见病变，在影像学检查中可能与海绵状血管瘤混淆。我们报告一例84岁女性患者，其左眼眶外下象限有一肿瘤性病变，病史9年。影像学检查未显示特异性特征，仅见因肿瘤长期发展导致的骨质重塑。患者经下结膜穹窿行前路眼眶切开术，肿瘤完整切除。组织病理学检查显示为陈旧性施万细胞瘤，这是施万细胞瘤的一种变体，具有不常见的组织学特征。随访过程顺利。本病例强调了在鉴别诊断伴有骨质改变及出血区、囊肿和/或钙化等退行性改变的眼眶肿物时，考虑神经源性肿瘤的重要性。
