The patient went on to have a craniotomy and resection of the larger right sided mass.
Histology
MICROSCOPIC DESCRIPTION:
Paraffin sections show a densely hypercellular tumour. Tumour cells have moderately pleomorphic round and oval nuclei with prominent nucleoli and moderate numbers of mitoses. These are arranged in solid aggregates within a fibrous and vascular stroma. The feature are of metastatic carcinoma and are most consistent with an origin from breast.
DIAGNOSIS:
Metastatic carcinoma with features most consistent with an origin from breast.