Orbital metastases of breast carcinoma

Orbital metastases, although rare, originate from systemic breast cancer in up to 35% of patients. Metastases more commonly arise from invasive lobular carcinomas than from invasive ductal carcinomas. Due to the diagnostic challenge of determining the primary site for the metastases, immunohistochemistry is essential. Clinical and radiological information are usually insufficient. This disease typically progresses quickly and has a poor prognosis. We report the case of a 55-year-old female who presented in 2017 with a left breast carcinoma and defaulted treatment during many different stages, then returned three years later with a right orbital mass which was confirmed to be a breast cancer metastasis on biopsy.