RT Journal Article SR Electronic T1 A patient with hypoxemia and a normal chest radiograph JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 924 OP 927 VO 22 IS 10 A1 Al-Mobeireek, Abdullah F. A1 Babatin, Mohamed A. YR 2001 UL http://smj.org.sa/content/22/10/924.abstract AB The case of a young patient with hypoxemia and a normal chest radiograph is presented in the form of a clinical quiz, followed by a discussion of the differential diagnosis, investigative methods and a brief review of the final diagnosis.