Azygos fissure and lobe

Case contributed by Safwat Mohammad Almoghazy
Diagnosis certain

Presentation

A known case of ovarian cancer under work up.

Patient Data

Age: 55 years
Gender: Female
ct

Azygos lobe and fissure are incidentally noted (normal variant).

Case Discussion

An azygos lobe is created when a laterally displaced azygos vein creates a deep pleural fissure into the apical segment of the right upper lobe during embryological development. It is not a true accessory lobe as it does not have its own bronchus.

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