Serial chest X-rays of 14 patients with parapneumonic ARDS (PARDS) wer
e analysed retrospectively. Typical findings on chest X-ray films occu
rred after a latency period of 12-24 h following the clinical start of
PARDS. We found some ''early signs'' of PARDS, such as central inters
titial paravascular edema (14/14), bilateral hilar infiltrates (9/14)
and the absence of pleural effusion (12/14).