鼻部源性突眼的CT分析

CT Analysis of Rhinogenous Ophthalmocele

目的：为了提高对鼻部源性突眼的认识。材料和方法：本文19例鼻部源性突眼，其中鼻咽癌7例，鼻咽纤维血管瘤2例，鼻腔纤维血管瘤、恶性肉芽肿和嗅神经母细胞瘤各1例，上颌窦癌和软骨肉瘤各2例，上颌窦恶性肉芽肿、纤维肉瘤和恶性纤维组织细胞瘤各1例，全部病例均作轴位CT扫描，12例加作增强扫描，详细分析了它们CT表现。结果：源于鼻咽的放疗前鼻咽癌和纤维血管瘤，其病变主要位于鼻咽腔和咽旁，后者显著增强并有钙斑，与前者不同；源于上颌窦的肿瘤，病变占据上颌窦的全部或大部分，软骨肉瘤有钙斑且无强化，易与其它肿瘤区别，它们破坏上颌窦顶部进入眼眶；鼻腔嗅神经母细胞瘤在鼻腔和筛窦形成肿块，破坏筛骨眶板侵入眼眶。结论：根据CT所见，可判断突眼原因。

Purpose: To raise the recognition of rhinogenous ophthalmocele. Materials and methods: 19rhinogenous ophthalmocele cases,of nasopharyngeal carcinoma (NPC) 7 cases,nasopharyngeal fibroangioma (NF) 2cases,nasal cayity fibroangioma (NCF) 1 case,nasal cavity olfactory neuroblastoma (NCON) 1 case, nasal cavity malignant granuloma (NCMG) 1 case,maxillary sinus carcinoam MSC) 2 cases,maxillary sinus chondrosarcoma (MSCS) 2 cases,maxillary sinus malignant granuloma (MSMG) 1 case,maxillary sinus fibrosarcoma (MSFS) 1case,maxillary sinus malignant fibrohistiocytic tumor (MSMFT)1 case. Axial CT scanning were performed in all cases and enhanced CT scanning in 12 patients. Their CT findings were analysed in details. ResuIts:The pathologic changes of NPC before radiotherapy and NF from nasopharynx mostly were at nasopharyngeal cavity and para -nasopharynx,the latter which had remarked enhancement and calcification was different from the former;most or all the sinus cavity was occupied by tumor from the maxillary sinus,MSCS which had calilication and no -enhancement differed from other tumors easily,the tumor invaded the orbit by destroying the top of maxillary sinus;NCON formed mass in nasal cavity and ethmoidal sinus and invaded into the orbit by destroving the orbital lamina of ethmoid bone. Conclusion:According to CT findings,the causes of ophthalmocele can be determined.