| Prepapillary Vascular Loops Associated with Retinal Diseases. |
|
Seong Jun Lee, Se Woong Kang |
1Department of Ophthalmology, College of Medicine, Chungbuk National University, Cheongju, Korea.
2Department of Ophthalmology, Samsung Medical Center, School of Medicine,Sungkyunkwan University, Seoul, Korea. swkang@smc.samsung.co.kr |
| 망막질환과 함께 발견된 시신경유두앞 혈관고리 |
|
이성준(Seong Jun Lee),강세웅(Se Woong Kang) |
|
|
|
|
| Abstract |
PURPOSE
Prepapillary vascular loops are blood vessels that project from the optic disc into the vitreous cavity and then return to the disc to continue their natural cource. Ninety percent are arterial in origin and usually congenital anomaly. We report four cases of prepapillary vascular loops associated with retinal and choroidal disorders. METHODS: Prepapillary vascular channel which showed twisted or ringlike appearance without leakage on fluorescein angiogram constituted the diagnosis. However, there may be a sector delay in filling of the optic disc or retina supplied by the loop due to the increased distance that blood must travel through the loop. RESULTS: These cases are not associated with vision-threatening diseases. The associated retinal diseases are diabetic retinopathy in one case, retinitis pigmentosa in one case, contralateral posterior uveitis in two cases. They are arterial loops. In two eyes were observed multiple prepapillary vascular loops. The vessels may appear as simple hairpin loops, spiral, or corkscrew configuration. In our cases, the presence of a cilioretinal artery and retinal artery obstruction could not be determined; other complication associated with prepapillary vascular loops were not observed. CONCLUSIONS: We assume that prepapillary vascular loops may occur acquiredly associated with other ocular diseases. |
| Key Words:
Diabetic retinopathy;Posterior uveitis;Prepapillary vascular loops;Retinitis pigmentosa |
|
PDF Links
Download Citation
