Cardiac Tumors Flashcards
The most common primary benign intracardiac tumor in adults is the:
A. Fibroma
B. Lipoma
C. Мухоma
D. Papilloma
C. The most common primary benign intracardiac tumor is the myxoma. Myxoma occurs most often in the left atrium, is usually attached to the interatrial septum via a stalk near the area of the fossa ovalis, is mobile, prolapsing into the orifice of the mitral valve resulting in obstruction.
The most common primary benign intracardiac tumor found in children is:
A. Myxoma
B. Papilloma
C. Rhabdomyosarcoma
D. Rhabdomyoma
D. Rhabdomyoma is the most common primary benign cardiac tumor found in children. It occurs more often in the right ventricle than in the left ventricle and is associated with tuberous sclerosis.
The most common primary benign valvular tumor in adults is the:
A. Angiosarcoma
B. Fibroelastoma
C. Мухоma
D. Rhabdomyoma
B. The papilloma or papillary fibroelastoma is a small (usually < 1 cm) benign tumor that occurs on the endocardial surface of the atrioventricular valves on the downstream side of the valve or endocardium. This benign tumor is often attached by a short stalk and is capable of embolizing.
A dumbbell-shaped configuration of the inter-atrial septum is associated with:
A. Amyloidosis
B. Lipomatous hypertrophy
C. Sarcoidosis
D. Sarcoma
B. The inter-atrial septum tends to accumulate fat. Lipomatous hypertrophy of the inter-atrial septum can produce a dumbbell-shaped configuration of the inter-atrial septum with thick fat-laden echoes surrounding a thin echo at the level of the fossa ovalis.
The most common primary malignant intracardiac tumor in adults is the:
A. Мухоma
B. Papillary fibroelastoma
C. Angiosarcoma
D. Fibroma
C. Angiosarcoma are most often found in or around the right atrium with pericardial effusion. Angiosarcoma are common in men (3:1) in the third to fifth decade of life.
The most common intracardiac tumor in adults is (the):
A. Мухоma
B. Rhabdomyoma
C. Angiosarcoma
D. Metastatic
D. Metastatic (non-primary) tumors are twenty times more common than primary cardiac tumors. Nearly 75% of cardiac metastases in adults are due to lung, breast or hematologic malignancies.
An unattached freely moving thrombus within the left atrium is referred to as a:
A. Ball-valve thrombus
B. Pedunculated thrombus
C. Sessile thrombus
D. Myxoma
A. An unattached freely moving thrombus moving within the left atrium is called a left atrial ball-valve thrombus. The mobile thrombus moves throughout the left atrium and can move in and out of the mitral valve orifice causing intermittent obstruction.
Complications of a right atrial thrombus include:
A. Interatrial septal aneurysm
B. Patent foramen ovale
C. Pulmonary embolism
D. Valvular prolapse
C. Right atrial thrombus are very important because they are frequently associated with pulmonary emboli. Often the right atrial thrombus form within the systemic veins and pass through the right atrium.
