嗅神经母细胞瘤的CT和MRI表现  

CT and MRI findings of olfactory neuroblastoma

作　　者：杨智云[1] 钟运其[1] 张翎[1] 蒋爱云[2] 赵如恩[3] 许达生[1] 

机构地区：[1]中山大学附属第一医院放射科,广州510080 [2]中山大学附属第一医院耳鼻咽喉科,广州510080 [3]广州市儿童医院放射科

出　　处：《中华放射学杂志》2005年第3期244-247,共4页Chinese Journal of Radiology

摘　　要：目的总结嗅神经母细胞瘤的CT和MRI表现,提高对嗅神经母细胞瘤的影像学认识。方法搜集资料完整的经病理证实的嗅神经母细胞瘤16例,回顾性分析嗅神经母细胞瘤的CT和MRI表现。结果16例嗅神经母细胞瘤中有3例术后复发,3例肿瘤局限于鼻腔,表现为膨胀性生长,13例均表现为鼻腔中后部肿块,累及单侧或双侧筛窦、上颌窦,其中5例破坏纸样板,侵入眼眶,5例破坏颅底骨筛板侵入颅内。3例肿瘤内有钙化和骨化。肿瘤密度或信号不均,但强化明显。结论嗅神经母细胞瘤发病部位多位于鼻腔中后部,强化显著,多呈浸润性生长,易向副鼻窦、眼眶和颅内侵犯。Objective To summary the CT and MRI imaging findings of olfactory neuroblastoma. Methods Sixteen cases of olfactory neuroblastoma proved by surgery and pathology were collected. The radiological findings of CT and MRI were retrospectively analyzed. Results Three lesions were postoperative recurrence. Three lesions located in the nose, the other 13 were located the middle-back part of the nose, infiltrating the sinuses such as maxillary and ethmoid sinus. Five lesions eroded the skull base and infiltrated into the brain. Another 5 lesions infiltrated the orbit. Calcification and ossification were present in 3 cases. The density or signal intensity of the masses was heterogeneous with marked enhancement after contrast administration. Conclusion Olfactory neuroblastoma often located in the middle-back of the nose, with malignant signs of infiltrating the sinuses, orbit, and brain, and with obvious enhancement.

关 键 词：嗅神经母细胞瘤 肿瘤 MRI表现 CT 鼻腔 眼眶 钙化 浸润性 样板 筛板 

分 类 号：R739.4[医药卫生—肿瘤]