Space occupying lesion

A 45-year-old man presents with new-onset seizures. MRI shows a ring-enhancing lesion with central restricted diffusion on DWI and marked surrounding edema. The most likely diagnosis is:

• Glioblastoma multiforme

• Cerebral abscess

• Metastatic carcinoma

• Low-grade astrocytoma

60-year-old woman with a history of breast carcinoma develops headaches and focal neurological deficits. MRI shows multiple, well-circumscribed ring-enhancing lesions at the gray-white junction. The most likely diagnosis is:

• Metastatic carcinoma

• High-grade glioma

• Tuberculoma

• Brain abscess

A “space-occupying lesion” in the brain means:

• A swelling that causes fever

• A lesion that takes up space and presses on brain tissue

• A blood vessel problem only

• A chemical imbalance

Which of the following lesions is infectious in origin?

• Glioma

• Meningioma

• Brain abscess

• Oligodendroglioma

On MRI, a cavernoma classically appears as:

• bright lesion with smooth borders

• ring-enhancing abscess

• A “popcorn-like” mixed signal lesion with a dark rim

• cyst with a mural nodule