HIV patient with one ring-enhancing lesion on CT? Treatment?
a) Toxoplasmosis; Pyrimethamine + Sulfadiazine + Leucovorin
b) Cryptococcosis; Amphotericin B + Flucytosine
c) Tuberculosis; Isoniazid + Rifampin + Pyrazinamide + Ethambutol
d) Progressive multifocal leukoencephalopathy (PML); No specific treatment