Burkitt’s tumor is a very fast-growing cancer of B lymphocytes (B cells), which are white blood cells that normally help your body fight infection. The cancer ...

Burkitt’s lymphoma is a very fast-growing cancer of the immune system. It starts in B lymphocytes, which are white blood cells that help your body make ...

Burkitt leukemia is the leukemic (blood and bone-marrow) form of Burkitt lymphoma, a very fast-growing cancer of B-lymphocytes. In older systems it was called ...

Burkitt lymphoma is a very fast-growing cancer of mature B-lymphocytes. The cancer cells usually carry a change in their DNA called an IG::MYC ...

Burkitt lymphoma is a very fast-growing cancer of B lymphocytes, a type of white blood cell that normally helps your body fight infections. In this disease, a ...

Bullous pemphigoid is an autoimmune skin disease. “Autoimmune” means the body’s defense system makes antibodies that attack its own skin. In bullous ...

Bullous impetigo is a fast-spreading bacterial skin infection that makes large, fragile blisters filled with clear or yellow fluid. These blisters break easily ...

Hereditary Bullous Dystrophy, Macular Type is a rare eye disease that you are born with. It mainly affects the clear front window of the eye called the cornea. ...

Macular corneal dystrophy (MCD) is an inherited eye disease where cloudy deposits develop in the clear front window of the eye (the cornea). These gray-white ...

JAK2-related Budd–Chiari syndrome (BCS) means the blood cannot leave the liver properly because the hepatic veins (the veins that drain the liver) or the ...

Hepatic vein obstruction means the blood leaving the liver cannot flow out normally through the hepatic veins into the inferior vena cava (IVC) and then to the ...

F5-related Budd–Chiari syndrome means Budd–Chiari syndrome (BCS) that happens in a person who carries the Factor V Leiden (F5 G1691A) mutation. In BCS, blood ...

Budd–Chiari syndrome means the blood leaving your liver through the hepatic veins (and sometimes the nearby inferior vena cava) is blocked. The blockage is ...

Bubonic plague is a severe bacterial infection caused by Yersinia pestis. It usually spreads to people through the bite of infected fleas that live on wild ...

Bruton tyrosine kinase (BTK) deficiency is a rare, inherited immune disorder. It mainly affects boys. The body cannot make mature B lymphocytes (B cells), the ...

Bruton agammaglobulinemia tyrosine kinase deficiency is a genetic condition that mainly affects boys. A change (mutation) in a gene on the X chromosome called ...

X-Linked Recessive Agammaglobulinemia is a rare genetic condition that mainly affects boys and stops the body from making antibodies. Antibodies are proteins ...

Bruton-type agammaglobulinemia is a genetic immune system disease in which the body cannot make mature B-cells and, therefore, makes almost no antibodies ...

Monoamine oxidase A deficiency is a very rare genetic condition that mostly affects boys and men. People with this condition have lower activity of an enzyme ...

X-Linked Recessive Brunner Syndrome is a very rare genetic condition. It mostly affects boys and men. It happens when a gene on the X chromosome called MAOA ...