atrial appendage lobe

The atrial appendage lobe is a small, pouch-like extension of the heart's left atrium, called the left atrial appendage. It is a narrow, finger-like projection that hangs off the upper left chamber of the heart, which receives oxygen-rich blood from the lungs. This lobe can vary in size and shape among individuals. While it usually functions without issues, it can sometimes develop blood clots, especially in atrial fibrillation, increasing the risk of stroke. Understanding its anatomy is important for diagnosing and managing certain heart conditions.