Congenital Fissure Anomalies (Single-Lobed Left Lung, Absent Minor Fissure on Right)
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Imaging findings
The left lung shows no major or minor fissures, appearing as a single lobe, with normal bronchial and vascular branching. The right lung has a major fissure, but the minor fissure is absent or rudimentary. Sagittal views confirm the absence of a complete left pulmonary fissure and a very small major fissure on the right.
Key takeaways
This represents a variation of normal lung anatomy, specifically congenital fissure anomalies. These are typically asymptomatic congenital findings.
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