Hachicha Amani, Chouchane Hamdi, Turki Senda
ENT Department, Hospital of FSI, Tunis, Tunisia.
SAGE Open Med Case Rep. 2024 Aug 16;12:2050313X241272687. doi: 10.1177/2050313X241272687. eCollection 2024.
Sinonasal schwannoma (SNS) is a rare entity with 4% occurring at this location and only 36 cases described in the literature. A 22-year-old woman presented recurrent unilateral epistaxis, hyposmia, unilateral nasal obstruction, and hemicranial headache for a year. The endoscopic examination showed a tissue mass filling the left nasal cavity and nasopharynx. Imaging showed a mass that occupied the left posterior ethmoid cells in the hyposignal T1, hyposignal T2, and gadolinium enhancing. A preoperative biopsy was made and the diagnosis was a schwannoma. The tumor mass was completely removed under general anesthesia. The final histopathological study reconfirmed the diagnosis of schwannoma. Six months after surgery, control endoscopic and imaging showed the absence of tumor recurrence. SNS is a rare entity and its diagnosis is generally based on a histological examination. Therefore, the possibility of schwannoma must be considered in front of a mass of the nasal fossa.
鼻窦神经鞘瘤（SNS）是一种罕见的疾病，4%发生于此部位，文献中仅描述了36例。一名22岁女性出现反复单侧鼻出血、嗅觉减退、单侧鼻塞和半侧头痛一年。内镜检查显示一个组织肿块充满左侧鼻腔和鼻咽部。影像学检查显示一个肿块占据左侧后筛窦，T1低信号、T2低信号，钆增强。进行了术前活检，诊断为神经鞘瘤。在全身麻醉下将肿瘤肿块完全切除。最终的组织病理学研究再次证实为神经鞘瘤。术后6个月，内镜和影像学复查显示无肿瘤复发。鼻窦神经鞘瘤是一种罕见的疾病，其诊断通常基于组织学检查。因此，在鼻腔肿块面前必须考虑神经鞘瘤的可能性。
