Problems in the investigation of pulmonary interstitial pneumocystis carinii in AIDS patients in the early phase with 67Ga, high-resolution CT scan and chest X-ray are discussed, and a clinical study of 12 individuals is presented. The combination of the three examinations is useful in reducing false negative cases. The use of 67Ga scanning, chest X-ray and high-resolution CT is also proposed in the follow-up of AIDS patients during remission of their lung pathology.
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