CYSTIC DISEASE OF THE LUNG

IN 1925, Koontz¹ published the first description of cystic disease of the lung to appear in American medical literature. Since then, wide interest has developed in this condition, not only as a distinct pathologic entity in itself but more particularly as a significant factor in the differential diagnosis and treatment of clinical intrathoracic problems. Articles on pulmonary cystic disease are appearing with increasing frequency, and, what is probably of greater significance, large series of cases of this disturbance have recently been reported.² As emphasized by Adams,^2a failure to recognize the frequency of cystic disease of the lung in the past has been due largely to the fact that it was mistaken for a variety of other pathologic conditions of the lung. Attention was called forcefully to this masquerade by Maier and Haight³ in 1940, Brown and Robbins⁴ in 1944 and Adams^2a in 1946. Nevertheless,