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Insights into Imaging
Fig. 7 | Insights into Imaging

Fig. 7

From: Computed Tomography and Magnetic Resonance Imaging of the Coronary Sinus: Anatomic Variants and Congenital Anomalies

Fig. 7

Completely unroofed CS with persistent LSVC and cor triatriatum in a 13-month-old male. Multiplanar maximum intensity projection MR angiography images show bilateral SVC with no bridging vein, cor triatriatum and scimitar vein. Two left pulmonary veins (b, asterisks) and a tiny vein draining the medial aspect of the right lower lung (b, arrow) connect to the upper chamber of the divided left atrium (LA-u). A scimitar vein draining most of the right lung connects to the junction between the right atrium and IVC (c, arrow). The persistent LSVC connects to the roof of the lower chamber of the left atrium (LA-l). There is complete unroofing of the CS into the left atrium. The CS ostium behaves as a large interatrial communication between the lower chamber of the left atrium and the right atrium, i.e. a CS ASD. Surgical management involved removing the membrane dividing the left atrium and creating a tunnel between the persistent LSVC and the right atrium using an autologous pericardial patch

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