This article is a case report of a 45 year old male with severe primary lung emphysema. He underwent lung transplantation. In a year after the transplantation, the patient experienced exercise dyspnea again. Multiple soft tissue rounded foci were found in the lungs in CT scans. Thoracoscopic lung biopsy followed by histological examination of the bioptates allowed diagnosis of Kaposi's sarcoma. This case is of particular interest as Kaposi's sarcoma is extremely rarely seen in allograph.