A 26 year old man, with no specific past or family history, presented with slow growing subcutaneous mass in the right parietal region of about 4 cm. Skin examination revealed a firm subcutaneous nodule that was movable over the underlying bone. Physical examination was not remarkable other than above-described skin lesion. X-rays of the skull (A) and CT scan (B) showed a subcutaneous mass next...

Most cartilaginous tumors are formed during skeletal development in locations adjacent to growth plates, suggesting that they arise from disordered endochondral bone growth. Fibroblast growth factor receptor (FGFR)3 signaling plays essential roles in this process; however, the role of FGFR3 in cartilaginous tumorigenesis is not known. In this study, we found that postnatal chondrocyte-specific ...

A 31-year-old woman presented with a 6-month history of dyspnea and posterior chest pain. Chest radiography demonstrated the presence of two round calcified pulmonary lesions. Results of physical examination and laboratory tests were normal. Chest computed tomography (CT) showed a well-circumscribed mass measuring 6 × 4 cm and a nodule with a diameter of 3 cm, both heavily calcified (Fig. 1A an...

5 Hood, R. T. Jr., Good, C. A., Clagett, 0. T, and McDonald, J. R.: “Solitary Circumscribed Lesions of the Lung,” J.A.M.A., 152:1185, 1953. 6 Thornton, T. F., Adams, W. E. and Bloch, H. G.: “Solitary Circumscribed Tumors of the Lung,” Sarg. Gynec. and Obst., 78:364, 1944. 7 Condon, W. B.: “Round Lesion of the Lung in Older Persons,” Thoracic Surgery Senzina.r, Fitzsimmons Army Hospital, Page 22...

An extraskeletal chondroma is a rare benign cartilaginous tumor that develops in soft tissue. Histologically, it is a lobulated nodule surrounded by a fibrous capsule; the inside consists of mature hyaline cartilage containing a few normal chondrocytes. We present a rare case of extraskeletal chondroma in the preauricular region. A 43-year-old man presented with a 2-cm-diameter right preauricul...

The present retrospective study was designed to review the clinicopathological features and outcome of surgical treatment of pulmonary chondroma, and to accumulate data for the clinical diagnosis and therapy. The clinicopathological data from 29 patients, aged between 38- and 78-years-old, with pulmonary chondroma who underwent surgical operation between July 2003 and June 2015 were reviewed. O...