Unilateral hyperlucency of chest

Swyer–James syndrome (SJS, also called MacLeod syndrome) is a rare lung disorder found by English chest physician William Mathiseon Macleod, and (simultaneously) by physician Paul Robert Swyer and radiologist George James in the 1950s in Canada.Swyer–James syndrome is a manifestation of postinfectious obliterative bronchiolitis. In SJS, the involved lung or portion of the lung does not grow normally and is slightly smaller than the opposite lung. [Source: Wikipedia ]