35 years male came for medical fitness chest xray.
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CXR showing azygous fissure (incidental finding).
1 case question available
An azygos lobe is is a normal anatomic variant of the right upper lobe and is formed by laterally displaced azygos vein which makes a deep pleural fissure into the right upper lobe's apical segment during embryogenesis. It is seen in up to 1% of cases.
- Mata J, Cáceres J, Alegret X et-al. Imaging of the azygos lobe: normal anatomy and variations. AJR Am J Roentgenol. 1991;156 (5): 931-7.