A case of brain metastasis from pulmonary giant cell carcinoma

A 74-year old female was admitted to our hospital due to sudden right hemiparesis. Precontrast brain computed tomography (CT) revealed multiple high-density masses consistent with multiple hemorrhage, and chest CT scan demonstrated a mass in the left lung field without hemorrhage. Follow-up CT showed enlargement of the multiple intracerebral hemorrhages. A diagnosis was made of brain metastasis from a rare pure giant cell carcinoma (GCC) of the lung.