鼻咽纤维血管瘤的影像表现及临床幻灯片

It originates from the posterolateral wall of the nasopharynx and from this site usually extends to the nasopharynx, nasal cavity, paranasal sinuses, sphenoid-palatine foramen and infratemporal fossa. In 10–20 % of the cases tumor invades the cranial cavity 。
Abstract
Nasopharyngeal angiofibroma (NA) is a rare,vascular tumor affecting dolescent males. Due to aggressive local growth, skull base location and risk of profound hemorrhage, NA is a challenge for surgeons.Angiofibromas tumor showed intensive contrast enhancement on CT and magnetic resonance imaging (MRI) scans, and abundant vascularity on angiography.
Enhancement on CT and MRI as well as signal-void areas on MR images, typical for high flow vessels (Fig. 2). Arteriography revealed abundant vascularity with main blood supply from the internal maxillary artery.
Nasal tumor underwent CT, which demonstrated homogenous mass, with contrast enhancement ranging from strong to intermediate (Fig. 1).In one case, signs of bony destruction with tumor invasion to the ethmoid sinus were visible. The patient with the tumor of the infratemporal fossa underwent CT, (MRI) and carotid arteriography with preoperative embolization. The lesion showed intensive contrast 。
图8 MRI T1WI增强
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图9 MRI T1WI增强
影像图像
图10 DSA冠状位
图11 DSA矢状位
患者：男，26岁 主诉：右鼻出血2天 现病史：患者输2天前无明显诱因出现右鼻出血，为鲜血，呈滴状，先从左前鼻
孔出，后亦从口中、右鼻流出，数分钟后停止，反复出现多次，总量约为100ml， 无鼻塞，流涕，嗅觉正常。无头痛、发热、咳嗽、打鼾，无耳鸣、而鼻塞感， 无听力下降。于当地医院治疗，予以鼻腔填塞，症状好转。在中山陈星海医院， 予以电子喉镜检查“右鼻腔肿物，性质待查”。 既往史：否认肝炎、结核、疟疾病史，否认高血压、心脏病史，否认糖尿病、 脑血管疾病史，否认手术、外伤、输血史，否认食物、药物等过敏史，否认吸 烟、饮酒史，否认毒物接触史。
鼻咽纤维血管瘤的 影像表现及临床幻
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南华大学附属第一医院
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优选鼻咽纤维血管瘤的影像表现及临床 ppt
患者：男，26岁 主诉：右鼻出血2天
图1 CT平扫
图2 CT增强
影像图像
图3 增强矢状位
图4 骨窗
影像图像
图5 MRI T1WI
图6 MRI T2WI
影像图像
图7 MRI T1WI增强
Histologic section of the tumor (H&E stain) shows fibrous stroma with ectatic, thin-walled vascular channels
Enhancement on CT and MRI as well as signal-void areas on MR images, typical for high flow vessels (Fig. 2). Arteriography revealed abundant vascularity with main blood supply from the internal maxillary artery.
Fig. 1 Computed tomography, coronal plane, shows homogenous tumor mass in the right nasal cavity
Fig. 2 Magnetic resonance, saggital T1weighted image after contrast administration.
Background
(NA) is a rare vascular tumor, which represents 0.05 % of all head and neck tumors. At the same time, it is the most common benign neoplasm of the nasopharynx . NA occurs predominantly in adolescent males. Although histologically benign it shows locally aggressive growth with bone destruction and spread through natural foramina and fissures.