CTICasesShared-sheath hematoma
Imaging findings
Non-contrast and contrast-enhanced CT scans post-cardiac catheterization show hyper-attenuating contrast medium within the pericardial space and tracking along the shared adventitial sheath of the ascending aorta and main pulmonary artery, secondary to an iatrogenic right coronary artery puncture.
Key takeaways
Puncture of a coronary artery during catheterization can cause contrast medium to extravasate into the pericardial space and track retrogradely along the shared adventitial sheath of the ascending aorta and pulmonary artery, presenting as a high-attenuation shared-sheath hematoma.
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