Primary chondrosarcoma of lung.

An indication of the rarity of true sarcomata of the lung may be obtained from the report by Mallory (1936). He recorded that only one prima,ry pulmonary sarcoma was confirmed in 8,000 routine necropsies at the Massachusetts General Hospital. Sarcomata in the lung occur more frequently as metastases from distant sites and often make their appearance many years after the treatment of the original tumour (Castleman, 1952). The first description of primary chondrosarcoma of the lung was by Wilks in 1862. Sporadic reports have followed (Greenspan, 1933; Lowell and Tuhy, 1949; Smith, Cohen, and Peale, 1960; Guida Filiho and Pasqualucci, 1963), and the last reported case (Daniels, Conner, and Straus, 1967) contained a comprehensive review