<unk>  cast The diagnosis of<unk>  is confirmed by recovery of casts that have been coughed up or visualized during a bronchoscopy. There is no specific cytologic, pathologic or laboratory test that is diagnostic for casts due to lymphatic PB. Imaging Simple chest X-rays may reveal collapse due to airway obstruction. The contralateral lung may be hyperinflated. Casts can be visualized within the major airways using computerized axial tomography scans. Heavy T2-weighted MRI, and, as appropriate, intranodal lymphangiogram and/or dynamic contrast-enhanced MR lymphangiography may be useful for identifying pathological lymphatic tissue or lymphatic flow.
Plastic bronchitis
Eosinophilic bronchitis
Acute bronchitis
Mineral dust airway disease
Bronchiectasis
Dust pneumonia
Atypical pneumonia
Acute eosinophilic pneumonia