Cardiac myxoma

Introduction to cardiac myxoma basic knowledge Sickness ratio: 0.05% Susceptible people: no specific population Complications: transient ischemic attack, heart failure, arterial embolism, arrhythmia, syncope, epilepsy

Cause of cardiac myxoma

(1) Causes of the disease

(two) pathogenesis

Pathogenesis

2. Pathological anatomy

Myxoma can grow in any chamber of the heart, but the most common site is the left atrium, which accounts for 70% to 90% of myxoma. It is also called left atrial myxoma, followed by the right atrium, and ventricular myxoma is rare. Occasionally, it grows in the pulmonary artery or the trunk of the pulmonary artery. Most of the left atrial myxoma is attached to the oval fossa of the atrial septum through a thick and short tumor pedicle. A few are attached to the posterior wall of the left atrium. The lower part of the interatrial septum, the posterior annulus of the mitral valve or the leaflet, the myxoma attached to the area outside the atrial septum, the base of which is wider, often without the presence of a tumor pedicle, and the right atrial myxoma is generally smaller than the left atrial myxoma. Wide, more attached to the interatrial septum, atrial wall, there are also very few attached to the endocardium at the tricuspid valve, 75% of the double-chamber myxomas are two tumor pedicles attached to the corresponding sides of the same area of he interatrial septum, right Ventricular myxoma is mostly attached to the free wall or ventricular septum, sometimes infiltrating the myocardium, and the size of cardiac myxoma is quite different. The large left atrial myxoma can be more than 10cm in diameter, less than 2cm in diameter, and generally 4-6cm in diameter, generally Observed as a mucus jelly, brownish yellow,

3. Pathophysiology

Cardiac myxoma prevention

Cardiac myxoma complications