Indocyanine green angiographic findings in seven eyes with vasoproliferative retinal tumor

PURPOSE: Vasoproliferative tumors (VPTs) are rare benign tumors, and detailed indocyanine green angiographic (ICGA) findings in eyes with VPTs have not been reported. We present the characteristic ICGA findings in seven eyes with a VPT. OBSERVATIONS: We present the fluorescein angiographic (FA) and ICGA findings of seven consecutive patients who were diagnosed with primary VPT from April 2013 to March 2015 in the Oncology Service of the Department of Ophthalmology, Tokyo Medical and Dental University. We reviewed the demographics of the seven patients with VPTs. Abnormal vessels within the tumor were observed in three cases with active tumors. These vessels were hypofluorescent in the ICGA images in the scar phase. On the other hand, three cases in which the exudation remained from the initial visit to the last examination had abnormal vessels in the ICGA images. The remaining case had one straight vessel in the tumor from the initial to the last examination in the scar phase. FA in the active phase changed from hyperfluorescent leakage to staining in one eye, and the remaining six eyes continued to show hyperfluorescent leakage throughout the examination period. CONCLUSIONS: The leakage of fluorescein continued from the initial to the final examination even after the activity of the tumor had decreased. In the active phase, ICGA showed abnormal vessels with or without leakage, and the tumors at the scar phase show a hypofluorescent lesion. IMPORTANCE: ICGA supported the ophthalmoscopic findings, and can be used as a diagnostic aid to confirm a regression of the VPTs.