“…Many of the previous reports relating to primary spontaneous pneumothorax in young subjects have not included detailed accounts of the histological changes (DuBose, Price, and Guilfoil, 1953;Bernhard, Malcolm, Berry, and Wylie, 1962;Carpathios and Bogedain, 1963;Leading article, 1965;Lynn, 1965;Mills and Baisch, 1965;Levy, 1966;Shields and Oilschlager, 1966).…”