Azygos lobe

Case contributed by Dr Derek Smith


Imaging requested for acute breathlessness and chest pain. No significant respiratory history.

Patient Data

Age: 70
Gender: Female

Underinspired lungs. No lobar consolidation or collapse.

Linear opacification in right upper zone.



No filling defect or parenchymal abnormalities.

Deviated azygos fissure with azygos vein draining into contrast-filled right subclavian vein.

Case Discussion

The partial fissure seen in the right upper lobe contains the azygos vein. The portion of right upper lobe medial to this can be termed the azygos lobe.

No cause for breathlessness was identified for this patient.

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Case information

rID: 40161
Published: 21st Oct 2015
Last edited: 14th Aug 2019
System: Chest
Inclusion in quiz mode: Included

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