text: Magnetic resonance imaging is the neuroimaging modality of choice for the work-up of HIV-positive patients with suspected CNS disease. MRI can aid in the diagnosis of primary CNs lymphoma,<unk>  dementia complex, and cerebral toxoplasmosis.<unk> -Dementia complex is characterized by diffuse cerebral atrophy, enlargement of the cerebral ventricles, and diffuse white matter hypoattenuation. Cerebral toxoplasmosis demonstrates ring enhancing lesions with surrounding edema that mayy closely resemble primary CNS lymphoma.
option_0: HIV AIDS MRI
option_1: HIV AIDS physical examination
option_2: Hepatitis C MRI
option_3: Hepatitis C chest x ray
option_4: Syphilis MRI
option_5: HIV associated nephropathy physical examination
option_6: Adult T-cell leukemia CT
option_7: Tuberculosis MRI