Orange juice is the liquid extract of the fruit of the orange tree, extracted by squeezing oranges. It comes in several different varieties, including blood orange. In American English, the beverage name may be abbreviated as OJ.
Summary Summary. Listen. Myelofibrosis is a disorder of the bone marrow, in which the marrow is replaced by fibrous (scar) tissue. When the bone marrow is scarred, it cannot make enough blood cells. This leads to anemia, weakness, fatigue, and often, swelling of the liver and spleen.
Myelofibrosis is a rare, chronic blood cancer. It can also progress, or get worse over time. For example, new symptoms may appear or existing symptoms may get worse. Myelofibrosis is part of a group of diseases called myeloproliferative neoplasms, or MPNs. Healthcare Professionals sometimes call myelofibrosis a bone marrow cancer or blood cancer. Bone marrow is where blood cells are made. People with MF have a defect in their bone marrow that results in an abnormal production of blood cells, causing scar tissue to form.