CTICasesHigh Take-Off Right Coronary Artery and Partial Anomalous Pulmonary Venous Return (Left Upper Lobe)
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Imaging findings
Cardiac CTA demonstrated a high take-off of the right coronary artery, originating significantly higher than expected. On the left side, only one pulmonary vein was identified, with no visible left upper pulmonary vein, suggesting left upper lobe partial anomalous pulmonary venous return.
Key takeaways
This case serves as a teaching example for residents and fellows in CT anatomy. It highlights the importance of recognizing both what is present (e.g., high take-off RCA as an anatomical variant) and what is absent (e.g., a pulmonary vein), which can indicate developmental anomalies such as partial anomalous pulmonary venous return. The diagnosis was suspected based on the imaging findings and planned for confirmation with further studies.
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