Basal exudates, infarcts and hydrocephalus are findings observed in Brain imagine studies. The most likely diagnosis is
Harrison's textbook of internal medicine 17th edition. *Imaging studies (MRI,CT scan) may show hydrocephalus and abnormal enhancement of basal cisterns or ependyma . *CT and MRI reveals contrast enhanced ring lesions ,but biopsy necessary to establish the diagnosis .
Tubercular Meningitis
Viral Meningitis
Herpes encephalitis
Cerebral Malaria
C.N.S