Table 1

Clinical characteristics of the five patients at the time of their first MR examination

Patient No	Age (y)	Previous AIDS defining diagnosis (CDC group IV^1-150)	CD4 count^1-151 ×10⁶/l
1	34	Pneumocystis carinii pneumonia	20
2	29	None	360
3	34	Oesophageal candidiasis	< 10
4	54	None	20
5	34	Pulmonary tuberculosis	180

↵1-150 Centers for Disease Control. Revised classification system for HIV infection and expanded case definition of AIDS among adolescents and adults.17
↵1-151 Normal range = 350—2200×10⁶/l.