Female, 31 years old, with metastatic breast cancer, assess for brain metastases. No evidence of mass, mass effect or parenchymal edema is seen. A single 3 mm focus of T2 hyperintensity within the left subinsular white matter is nonspecific. No restricted diffusion is evident.There is no evidence of intracranial hemorrhage or any abnormal extra-axial fluid collections. The ventricular system is normal in size and morphology. Marrow signal characteristics of the calvarium are unremarkable.
1.A single small focus of signal abnormality within the left subinsular white matter is nonspecific.2.No definite evidence of intracranial metastases is seen without the benefit of IV contrast.