Cystoid macular edema (CME) without leakage is an adverse complication of paclitaxel administration in patients with cancer. However, the mechanism of non-leaking CME has been unclear. The authors report the case of a 66-year-old man who developed non-leaking CME during treatment with paclitaxel for gastric cancer. This case report suggests possible pathogenesis of paclitaxelinduced CME without evidence of leakage at angiography from the data of electroretinogram.
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