A Case of Subretinal Hematoma Secondary to Polypoidal Choroidal Vasculopathy Misunderstood as a Subretinal Mass

PURPOSE: To report a case of subretinal hematoma secondary to polypoidal choroidal vasculopathy (PCV) misunderstood as a subretinal mass. CASE SUMMARY: 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. CONCLUSIONS: 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.

Subretinal Inflammatory Myofibroblastic Tumor: Clinicopathological Findings

PURPOSE: To present a case of inflammatory myofibroblastic tumor which was manifested as an idiopathic subretinal mass without underlying pathology. METHODS: The subretinal mass was surgically excised and evaluated histopathologically. Fluorescein angiography and optical coherence tomography were performed pre- and post-operatively. RESULTS: The mass was histologically composed of lymphoplasma cell infiltration and fibrous proliferation without microorganisms or malignant cells. Immunohistochemistry for smooth muscle actin revealed myofibroblasts as a major cellular component. Preoperative optical coherent tomography showed that the lesion was contiguous to the retina while inducing foveal detachment. Postoperatively, the fovea was attached with visual recovery, and the subretinal lesion did not recur during the follow up. CONCLUSIONS: Inflammatory myofibroblastic tumors may be included in the differential diagnoses of subretinal masses.