Primary cavitary sarcoidosis is a rare subtype of sarcoidosis that typically manifests with pulmonary cavitations at the time of diagnosis or within a few months
of diagnosis. This disease can easily be misinterpreted as tuberculosis or other cavitary diseases and the time to correct diagnosis might be delayed.This article presents a case report where a patient with primary cavitary sarcoidosis was followed up during a 10 year period. During that time initial cavtary lesions resolved and 8 years later new cavitary lesions were found on CT. These cavities resolved two years later. The presented case suggests that reversible cavitation in primary cavitary sarcoidosis may appear several years after the onset of the disease.