White arrows point to bosselated yellowish tan mass with a smooth external contour.
Although previously called hamartoma, these lesions develop over years and are not congenital. Composed of mature cartilage, fibrous tissue, and fat as well as occasional blood vessels and respiratory epithelium. Often found on chest xray or other radiographic study and diagnosed as part of an evaluation to rule out carcinoma. Robbins Pathologic Basis of Disease. Search Medline at National Library of Medicine Please be patient during transfer.