先天性泪囊突出的螺旋CT诊断

Multi-slice CT Findings of Congenital Dacryocystocele

目的探讨先天性泪囊突出的螺旋CT表现。资料与方法回顾性分析4例先天性泪囊突出患儿螺旋CT表现。结果典型CT表现为单侧或双侧不同程度的鼻泪管扩张以及与之相延续的内眦区囊肿和鼻腔内黏膜下囊肿。3例为双侧,1例为单侧。结论螺旋CT能全面观察鼻泪管扩张的程度以及突出于内眦区及鼻腔内囊肿的大小。

Objective To evaluate multi-slice CT （MSCT） features of congenital dacryocystocele. Materials and Methods MSCT findings in 4 cases with congenital dacryocystocele were analyzed retrospectively. Results All 4 cases demonstrated dilation of nasolacrimal duct,a cyst in the medial canthus,and a submucosal cyst within the nasal cavity. Bilateral involvement was found in 3 cases and involvement of only left side in 1 case. Conclusion MSCT could display dilation of the nasolacrimal duct,a cyst in the medial canthus,and a submucosal cyst within the nasal cavity.