網膜静脈分枝閉塞症を伴う三角症候群の1例

A case of branch retinal vein occlusion associated with triangular syndrome

　網膜静脈分枝閉塞症を合併した三角症候群を有する60歳男性の1例を報告した。

　三角症候群の本態は後毛様動脈の閉塞によるものであり，血管閉塞性疾患の素因を共有するものと考えられ，三角症候群および網膜血管閉塞症との合併は，今後も多く見出される可能性がある。

A 60-year-old male presented with branch retinal vein occlusion in his right eye. A band-shaped choroidal atrophy was also seen involving the macula towards the inferior periphery in the same eye. The finding was compatible with those of triangular syndrome. Sporadic patches of retinalpigment epithelium were seen in his left eye. As occlusion of posterior ciliary artery is the presumed cause of triangular syndrome, the affected eye seemed to be predisposed to choroidal and retinal vascular occlusions.