Search results
Results From The WOW.Com Content Network
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells, a type of white blood cell, inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis or ...
PTLD is the second most common malignancy that occurs as a complication following solid organ transplantation (skin cancer is the most common). Less commonly, PTLD occurs after hematopoietic stem cell transplantation. The incidence varies by the type of transplantation: the lowest rates are seen with bone marrow transplants and liver transplants.
Treatment with folinic acid can in some cases alleviate the associated symptoms and partially correct associated brain abnormalities, especially if started early in the course of illness. [6] The proposed cause of cerebral folate deficiency in the Kearns–Sayre syndrome is the failure of the mechanisms in the choroid plexus that are ...
The first study of the human brain at 3.0 T was published in 1994, [13] and in 1998 at 8 T. [14] Studies of the human brain have been performed at 9.4 T (2006) [15] and up to 10.5 T (2019). [16] Paul Lauterbur and Sir Peter Mansfield were awarded the 2003 Nobel Prize in Physiology or Medicine for their discoveries concerning MRI.
Myelophthisic anemia (or myelophthisis) is a severe type of anemia found in some people with diseases that affect the bone marrow. Myelophthisis refers to the displacement of hemopoietic bone-marrow tissue [1] by fibrosis, tumors, or granulomas. The word comes from the roots myelo-, which refers to bone marrow, and phthisis, shrinkage or atrophy.
Micrograph showing nucleated red blood cells (bottom left of image), one of the elements necessary to call extramedullary hematopoiesis, in an endometrial polyp. H&E stain. Extramedullary hematopoiesis (EMH or sometimes EH [1]) refers to hematopoiesis occurring outside of the medulla of the bone (bone marrow). [2] It can be physiologic or ...
Myeloproliferative neoplasms (MPNs) are a group of rare blood cancers in which excess red blood cells, white blood cells or platelets are produced in the bone marrow. Myelo refers to the bone marrow, proliferative describes the rapid growth of blood cells and neoplasm describes that growth as abnormal and uncontrolled.
also characterized by less than 5% myeloblasts in the bone marrow, but distinguished by the presence of 15% or greater of red cell precursors in the marrow being abnormal iron-stuffed cells called "ringed sideroblasts" M9983/3: Refractory anemia with excess blasts (RAEB) characterized by 5–19% myeloblasts in the marrow M9984/3