视网膜母细胞瘤的CT诊断

The CT diagnosis of retinoblastoma

目的：研究视网膜母细胞瘤的ＣＴ形态学改变，旨在提高对本病的认识。方法：对我院１９９５年８月～１９９７年１２月的７８例眼眶ＣＴ中初诊发现的２３例眶内软组织肿块，其中１１例视网膜母细胞瘤进行分析，８例经手术及病理证实，另３例因其它原因放弃治疗。结果：１１例患儿均具有典型的ＣＴ表现：①眼球突出；②眼球壁上软组织密度块影；③团块状钙化。结论：ＣＴ表现对视网膜母细胞瘤的早期诊断、分期及手术提供了客观依据。

Purpose:To observe the morphologic changes of retinoblastoma on CT images in order to improve the recognition of this disease.Methods:From 78 cases of orbital CT in our hospital between Aug.1995 to Dec.1997,there were 23 cases of soft tissue mass within the orbit in which 11 cases were diagnosed as retinoblastoma.8 cases were confirmed by surgery and pathology,other 3 cases gived up therapy for other reasons.Results:All the 11cases have typical CT findings:①protrusion of eye ball;②soft tissue density mass on walls of eye ball;③mass shape calcification.Conclution:CT findings provide objective data for early diagnosis,staging and helpful for planning operation for retinoblastoma.