Azygos fissure

Case contributed by Bahman Rasuli
Diagnosis certain

Presentation

Trauma.

Patient Data

Age: 30 years
Gender: Male
ct

Azygos fissure in the right upper lobe containing the azygos vein within it.

Case Discussion

An azygos lobe is a normal anatomical variant of the right upper lobe due to the invagination of the azygos vein and pleura during development in the fetus. It is not a true accessory lobe as it does not have its own bronchus.

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