Indocyanine green mediated photothrombosis and high dose intravitreal bevacizumab as adjuvant therapy for isolated choroidal metastasis from breast cancer

Purpose: To report the effectiveness of indocyanine green mediated photothrombosis (IMP) combined with high dose (4 mg/0.16 ml) intravitreal bevacizumab (IVB) as adjunctive therapy for management of isolated choroidal metastasis from breast cancer. Methods: This retrospective interventional case report includes three eyes of two patients with choroidal metastasis from breast cancer. Both patients were submitted to one session of IMP combined with high dose IVB as adjuvant local therapy to systemic chemotherapy. Main outcome measures were tumor response, and fluorescein angiography (FA), optical coherence tomography (OCT), and visual acuity (VA) results. Results: The first patient was a 47-year-old woman who had undergone radical mastectomy, chemotherapy and radiotherapy 7 years earlier and the second patient was a 70-year-old woman managed with chemotherapy and radiotherapy 16 years before presentation. There was no evidence of systemic metastasis in either case and both suffered from gradually blurred vision. The first patient presented with a unilateral choroidal lesion whereas the second case had bilateral unifocal choroidal lesions which was symptomatic in only one eye. Clinical examination, ultrasonography, FA, and OCT revealed accompanying exudative retinal detachment in all three eyes. OCT 3 to 5 weeks after combined therapy demonstrated complete resolution of subretinal fluid and improved VA in two eyes. Conclusion: Combined IMP and high-dose IVB seems to be an effective adjunctive treatment to systemic chemotherapy for management of isolated choroidal metastasis from breast cancer.