To report a case of subretinal hematoma secondary to polypoidal choroidal vasculopathy (PCV) misunderstood as a subretinal mass.

A 73-year-old man with no specific medical history visited our clinic with decreased vision in the right eye. Slit-lamp examination revealed no specific findings for the anterior segment of the right eye. Upon fundus examination, an elevated macular lesion with some subretinal hemorrhages was observed, and a subretinal mass lesion was found on ultrasonography. After performing fluorescein angiography, indocyanine green angiography, and magnetic resonance imaging, we presumed that this lesion was a subretinal hematoma or ocular tumor and recommended observation. One month later, the subretinal mass had decreased in size. One year later, PCV with large retinal pigment epithelial detachment (RPED) was observed. After the intravitreal bevacizumab injection, RPED and macular edema were improved.

We confirmed PCV with a subretinal hematoma and large RPED which seemed to be a subretinal mass and was difficult to differentiate from ocular tumors.