Peripheral Choroidal Neovascularization

Peripheral choroidal neovascularization can result in an elevated subretinal lesion which can simulate a choroidal tumor. We reviewed 8 eyes with 11 peripheral areas of subretinal fluid and exudate which were subsequently determined to be secondary to peripheral choroidal neovascularization. Previous reports of peripheral choroidal neovascularization have emphasized the hemorrhagic nature of these lesions which can simulate a choroidal melanoma. In contrast, turbid subretinal fluid and exudate characterized the majority of peripheral lesions in this series and the majority of these patients were referred with a diagnosis of choroidal metastasis. Clinical examination with fluorescein angiography and echography can effectively distinguish these areas of peripheral choroidal neovascularization from choroidal metastasis.