[Coincidence of pulmonary cryptococcoma in an immunocompetent patients with a chondrohamartoma and chronic tuberculoma--differential diagnostic considerations concerining pulmonary coin lesions].

Of primary importance in the differential diagnosis of multiple circular foci in the lungs are the lung metastases. This study involves a patient with three circular foci, each of which could have been metastases. They proved, however, to be a rare coincidence of three benign lung affections, namely, an old tuberculoma, a chondrohamartoma, and a seldom encountered pulmonary cryptococcoma. Computerized tomography utilizing the spiral technique was valuable diagnostically, as it led to the discovery of the smallest of the three circular foci in the basodorsal left lower lobe. The form of the cryptococcosis among immunocompetent patients--only rarely localized in our experience--must be included in the differential diagnostical considerations of a circular focus in the lungs. In the event there are multiple circular foci with an unknown primary tumor, surgical intervention with a pathohistological clarification regarding a possible malignancy is absolutely necessary.