“…Noteworthy exceptions are the reviews of Forsee,11 Takaro,12 Curry,13 Polk (Fig 2, 3), which were clinically sufficiently suspect to warrant thoracotomy. Cavitary lesions ( Fig 4 ), nonresolving infiltrating lesions (Fig 5), "mid¬ dle lobe syndrome" (Fig 6), and mediastinal lymphadenopathy (Fig 7 and 8 (19) Wilson & Duryea (20) Sutliff et al (18) Matthiesen (21) Maclnnis (22) Davis et al (23) Houson et al (24) Hughes (17) Polk et al (14) Sweany et al (25) Zimmerman (26) Baum & Schwarz (15) Greendyke & Emerson (27) Baum et al (29) Walker & James (30) Rubin …”