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为了探讨嗅神经母细胞瘤的CT和MR的影像特征,回顾性分析42例经病理确诊的嗅神经母细胞瘤的CT和MR表现。42例患者中2例局限于鼻腔中后部;18例局限于鼻腔和鼻窦;22例侵入颅内;9例伴随颈淋巴结转移。15例肿瘤密度或信号均匀,27例密度或信号不均匀,42例增强后明显强化,其中32例不均匀强化。初步研究结果提示,嗅神经母细胞瘤发病部位多数位于鼻腔中后部,强化显著,呈浸润性生长,易侵犯副鼻窦、眼眶及颅内,颈部淋巴结转移少见。
To investigate the CT and MR imaging features of olfactory neuroblastoma, CT and MR findings of 42 pathologically diagnosed olfactory neuroblastomas were retrospectively analyzed. Two of the 42 patients were confined to the middle and rear of the nasal cavity; 18 were confined to the nasal and paranasal sinus; 22 invaded the intracranial; 9 were accompanied by cervical lymph node metastases. In 15 cases, the tumor density or signal was even, the density or signal was not uniform in 27 cases, 42 cases were significantly enhanced after enhancement, of which 32 cases were unevenly enhanced. Preliminary results suggest that most of the pathogenesis of olfactory neuroblastoma located in the back of the nasal cavity, with significant enhancement, was invasive growth, easy invasion of paranasal sinus, orbital and intracranial, neck lymph node metastasis rare.