Presentation
SOB and hypoxia.
Patient Data
Age: 75 years
Gender: Female
From the case:
Left hilar mass causing left upper lobe collapse
Frontal

Veiling density of the left hemithorax. Left hilar mass. Mildly elevated left hemidiaphragm in keeping with volume loss. Features in keeping with LUL collapse due to a left hilar mass.
Case Discussion
This case illustrates some of the typical findings of LUL collapse on CXR.
The patient underwent CT which demonstrated a left hilar mass as the cause for the collapse. Bronchoscopic biopsy confirmed small cell lung cancer.