Diseases, Conditions, Diagnostic Procedures 2

leaflets of the mitral valve prolapse into the left atrium during systole, resulting in incomplete closure and backflow of blood

necrosis of a portion of cardiac muscle caused by partial or complete occlusion of one or more coronary arteries

failure of the ductus arteriosus to close after birth, resulting in an abnormal opening between the pulmonary artery and the aorta

chronic episodes of cyanosis and paleness of the skin, primarily the fingers or toes due to intermittent constriction of the arterioles in the skin

• streptococcal infection that causes damage to the heat valves and heart muscle
• mostly seen in children and young adults

deficiency of cellular immunity induced by HIV, characterized by increasing susceptibility to infections, malignancies and neurological diseases

malignant disease characterized by painless, progressive enlargement of lymphoid tissue, splenomegaly, and the presence of unique Reed-Sternberg cells in the lymph nodes

malignant disease of connective tissue, including bone, fat, muscle, and fibrous tissue

acute infection caused by the Epstein-Barr virus and characterized by a sore throat, fever, fatigue, and enlarged lymph nodes

any of a heterogeneous group of malignant tumors involving lymphoid tissue except for Hodgkin disease

chronic inflammatory autoimmune disease characterized by unusual antibodies in the blood that target tissues of the body with a butterfly-shaped rash that appears on the face

insertion of a catheter into the heart through a vein or artery, usually of an arm (brachial artery) or leg (femoral artery) to provide evaluation of the heart

tests that measure levels of enzymes and proteins in the blood that increase with an injury to heart muscle, such as from a heart attack

use of ultrasound to evaluate the heart and great vessels and diagnose cardiovascular lesions