Haematopoiesis – Blood Cell Formation

Introduction All blood cells develop from haemocytoblasts The process is called haematopoiesis (sometimes just haemopoiesis) Haemocytoblasts are also known as pluripotential stem cells. These cells can replicate themselves as well as differentiate into other...

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Haematuria

Introduction Haematuria is the passing of blood in the urine Frank Haematuriais the presence of blood on macroscopic investigation (i.e. looking at the blood) Microscopic Haematuria – is where you can only see RBC’s...

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Haemochromatosis

Introduction The term haemochromatosis is usually used to describe a group of autosomal recessive disorders of iron metabolism. It is sometime called hereditary haemochromatosis and abbreviated to HHC. The most common mutations are in...

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Haemophilia A

Introduction Haemophilia A is one of several genetic inherited clotting disorders, the other most common ones being haemophilia B and von Willebrand’s disease. It typically presents in neonates and young children, and can occasionally...

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Haemophilia B (Christmas Disease)

Introduction Haemophilia B is an inherited X-linked recessive clotting disorder, which can cause excessive bleeding. Haemophilia B causes a similar, but generally less severe disease than haemophilia A. Most cases are mild, but in...

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