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Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. [3] [6] Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme metabolism, liver dysfunction, or biliary-tract obstruction. [7]
The varied causes of hyperbilirubinemia are best understood from bilirubin metabolism. The total average daily production of bilirubin in humans is 4 mg/kg. 80% of which is derived from haemoglobin (Hb) produced by erythrocyte breakdown, with the remaining from heme proteins , like myoglobin and cytochrome , turnover. [ 5 ]
The underlying causes of hemolytic jaundice, as its name suggests, are disorders associated with hemolysis. Such disorders are manifold and the common causes include: Blood smear of a patient with sickle cell disease. The characteristic sickle-shaped appearance of red blood cells can be observed.
An enlarged liver and spleen (hepatosplenomegaly) is common, as is jaundice. However, jaundice is less common in hepatitis B because a newborn's immune system is not developed well enough to mount a response against liver cells, as would normally be the cause of jaundice in an older child or adult.
In older individuals, choledochal cysts are more likely to cause abdominal pain and intermittent episodes of jaundice and occasionally cholangitis (inflammation within the bile ducts caused by the spread of bacteria from the intestine into the bile ducts). Inflammation of the pancreas also may occur. The cause of these complications may be ...
The number of people dying from liver cancer has nearly doubled in the past two decades and is projected to keep rising, new analysis shows, despite around half of cases being preventable.. Liver ...
Bilirubin (BR) (from the Latin for "red bile") is a red-orange compound that occurs in the normal catabolic pathway that breaks down heme in vertebrates.This catabolism is a necessary process in the body's clearance of waste products that arise from the destruction of aged or abnormal red blood cells. [3]
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