EuroPCR2026-images-91908-anatomical-ghost-left-atrium

What is the most likely explanation for this imaging void?

Extensive thrombus causing complete cavity obliteration

Congenital absence of the left atrial appendage (LAA)

Chronic iatrogenic occlusion from a prior forgotten procedure

Correct! The correct answer is "Congenital absence of the left atrial appendage (LAA)".

Cardiac CT confirmed the rare congenital absence of the LAA. Anticoagulation was continued, extrapolating from clinical practice following surgical LAA ligation.

Good try! The correct answer is "Congenital absence of the left atrial appendage (LAA)".

Cardiac CT confirmed the rare congenital absence of the LAA. Anticoagulation was continued, extrapolating from clinical practice following surgical LAA ligation.

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