Preferred Label : subpleural curvilinear line;
Definition : CT scans.—This finding is a thin curvilinear opacity, 1–3 mm in thickness, lying less
than 1 cm from and parallel to the pleural surface (Fig 68). It corresponds to atelectasis
of normal lung if seen in the dependent posteroinferior portion of lung of a patient
in the supine position and is subsequently shown to disappear on CT sections acquired
with the patient prone. It may also be encountered in patients with pulmonary edema
(132) or fibrosis (other signs are usually present). Though described in the context
of asbestosis, this finding is not specific for asbestosis. [Fleischner Society];
Source : Fleischner Society;
Origin ID : RID28536;
Associated condition(s)
CT scans.—This finding is a thin curvilinear opacity, 1–3 mm in thickness, lying less
than 1 cm from and parallel to the pleural surface (Fig 68). It corresponds to atelectasis
of normal lung if seen in the dependent posteroinferior portion of lung of a patient
in the supine position and is subsequently shown to disappear on CT sections acquired
with the patient prone. It may also be encountered in patients with pulmonary edema
(132) or fibrosis (other signs are usually present). Though described in the context
of asbestosis, this finding is not specific for asbestosis. [Fleischner Society]
