Childhood acute lymphoblastic leukemia

Childhood acute lymphoblastic leukemia (C-ALL): A type of cancer of the bone marrow that produces immature lymphocytes (a type of blood cell) in the bloodstream. This is the most common type of cancer in children and progresses quickly if not treated. Symptoms can...

Amniotic band syndrome

Amniotic band syndrome (ABS): a syndrome of birth defects that occurs when strands of the amniotic sac become loose and wrap around parts of the baby in the womb. The resulting compression from these amniotic bands leads to loss of blood flow to the affected areas and...

Reperfusion

Reperfusion: The restoration of blood flow to an organ or to tissue. After a heart attack, an immediate goal is to quickly open blocked arteries and reperfuse the heart muscles. Early reperfusion minimizes the extent of heart muscle damage and preserves the pumping...

Gallbladder

Gallbladder: A pear-shaped organ located below the liver that stores the bile secreted by the liver. During and after a fatty meal, the gallbladder contracts, delivering the bile through the bile ducts into the intestines to help with digestion. MedTerms (TM) is the...

Polycythemia

Polycythemia: Too many red blood cells. The opposite of anemia. polycythemia formally exists when the hemoglobin, red blood cell (RBC) count, and total RBC volume are all above normal. MedTerms (TM) is the Medical Dictionary of MedicineNet.com.We Bring Doctors’...

Snoring

Snoring: A rough rattling noise made on inspiration during sleep by vibration of the soft palate (the back of the roof of the mouth) and the uvula (the prominent structure dangling down at the back of the mouth). On inspiration, air on its way to the lungs travels by...