After an apicoposterior staple segmental resection for squamous cell c
arcinoma of the left upper lobe, a ''new'' mass developed in the remai
ning upper lobe, 8 months postoperatively. Upon removal, this proved t
o be an ischemic infarction in the anterior segment. Residual lung rot
ation may have compounded local lung ischemia secondary to the staple
technique of resection. One clue to this pseudotumor development appea
rs to be prolonged postoperative ''haziness'' on chest roentgenograms.
(C) 1998 by The Society of Thoracic Surgeons.