Hematology

Hematoporphyrin (Photodyn, Sensibion) is an endogenous porphyrin formed by the acid hydrolysis of hemoglobin.

Rh disease (also known as rhesus isoimmunisation, Rh (D) disease, rhesus incompatibility, rhesus disease, RhD hemolytic disease of the newborn, rhesus D hemolytic disease of the newborn or RhD HDN) is a type of hemolytic disease of the newborn (HDN).

Thrombophlebitis is phlebitis (vein inflammation) related to a thrombus, which is a blood clot.

Blood transfusion is generally the process of receiving blood or blood products into one's circulation intravenously.

Hypoproteinemia (or hypoproteinaemia) is a condition where there is an abnormally low level of protein in the blood.

Megaloblastic anemia (or megaloblastic anaemia) is an anemia (of macrocytic classification) that results from inhibition of DNA synthesis during red blood cell production.

Basophilia is a condition where the basophil quantity is abnormally elevated (more than 1010 basophils per liter of blood).

Methemoglobinemia (or methaemoglobinaemia) is a disorder characterized by the presence of a higher than normal level of methemoglobin (metHb, i.e., ferric [Fe3+] rather than ferrous [Fe2+] haemoglobin) in the blood.

Hematidrosis, also calledblood sweat is a very rare condition in which a human sweats blood.

Deep vein thrombosis, or deep venous thrombosis, (DVT) is the formation of a blood clot (thrombus) within a deep vein, most commonly the legs.

An embolism is the lodging of an embolus, a blockage-causing piece of material, inside a blood vessel.

Eosinophils, sometimes called eosinophiles or, less commonly, acidophils, are a variety of white blood cells and one of the immune system components responsible for combating multicellular parasites and certain infections in vertebrates.

A basophil is a type of white blood cell.

Hemolytic anemia or haemolytic anaemia is a form of anemia due to hemolysis, the abnormal breakdown of red blood cells (RBCs), either in the blood vessels (intravascular hemolysis) or elsewhere in the human body (extravascular).

Protein C, also known as autoprothrombin IIA and blood coagulation factor XIV, is a zymogen, the activated form of which plays an important role in regulating anticoagulation, inflammation, cell death, and maintaining the permeability of blood vessel walls in humans and other animals.

Factor VII (EC 3.4.21.21, blood-coagulation factor VIIa, activated blood coagulation factor VII, formerly known as proconvertin) is one of the proteins that causes blood to clot in the coagulation cascade.

Factor X, also known by the eponym Stuart–Prower factor, is an enzyme (EC 3.4.21.6) of the coagulation cascade.

Hematologic diseases are disorders which primarily affect the blood.

Pulmonary embolism (PE) is a blockage of an artery in the lungs by a substance that has traveled from elsewhere in the body through the bloodstream (embolism).

Thrombosis (Greek: θρόμβωσις) is the formation of a blood clot (thrombus; Greek: θρόμβος) inside a blood vessel, obstructing the flow of blood through the circulatory system.

A blood type (also called a blood group) is a classification of blood based on the presence and absence of antibodies and also based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs).

A thrombus, colloquially called a blood clot, is the final product of the blood coagulation step in hemostasis.

Heparin-induced thrombocytopenia (HIT) is the development of thrombocytopenia (a low platelet count), due to the administration of various forms of heparin, an anticoagulant.

Anisocytosis is a medical term meaning that a patient's red blood cells are of unequal size.

Polycythemia (or Polycythaemia, see spelling differences) vera (PV) (also known as erythremia, primary polycythemia, Vaquez disease, Osler-Vaquez disease and polycythemia rubra vera) is a neoplasm in which the bone marrow makes too many red blood cells.

Iron-deficiency anemia, also spelled iron-deficiency anaemia, is anemia caused by a lack of iron.

Agranulocytosis, also known as agranulosis or granulopenia, is an acute condition involving a severe and dangerous leukopenia (lowered white blood cell count), most commonly of neutrophils causing a neutropenia in the circulating blood.

Hemostasis or haemostasis is a process which causes bleeding to stop, meaning to keep blood within a damaged blood vessel (the opposite of hemostasis is hemorrhage).

Tamponade is the closure or blockage (as of a wound or body cavity) by or as if by a tampon, especially to stop bleeding.

A bruise, or contusion, is a type of hematoma of tissue in which capillaries and sometimes venules are damaged by trauma, allowing blood to seep, hemorrhage, or extravasate into the surrounding interstitial tissues.

The National Marrow Donor Program (NMDP) is a nonprofit organization founded in 1986 and based in Minneapolis, Minnesota that operates the Be The Match Registry of volunteer hematopoietic cell donors and umbilical cord blood units in the United States.

Disseminated intravascular coagulation (DIC), also known as disseminated intravascular coagulopathy or less commonly as consumptive coagulopathy, is a pathological process characterized by the widespread activation of the clotting cascade that results in the formation of blood clots in the small blood vessels throughout the body.

Coagulopathy (also called a bleeding disorder) is a condition in which the blood’s ability to coagulate (form clots) is impaired.

Leukocytosis is white cells (the leukocyte count) above the normal range in the blood.

Hematopoietic stem cell transplantation (HSCT) is the transplantation of multipotent hematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood.

Splenomegaly is an enlargement of the spleen.

Pica is characterized by an appetite for substances that are largely non-nutritive, such as ice (pagophagia); hair (trichophagia); paper (papyrophagia); drywall or paint; metal (metallophagia); stones (lithophagia) or earth (geophagia); glass (hyalophagia); or feces (coprophagia); and chalk.

Neutrophil (also known as neutrophils or occasionally neutrocytes) are the most abundant type of granulocytes and the most abundant (40% to 75%) type of white blood cells in most mammals.

Haemochromatosis (or hemochromatosis) type 1 (also HFE hereditary haemochromatosis or HFE-related hereditary haemochromatosis) is a hereditary disease characterized by excessive intestinal absorption of dietary iron resulting in a pathological increase in total body iron stores.

Platelet-activating factor, also known as PAF, PAF-acether or AGEPC (acetyl-glyceryl-ether-phosphorylcholine), is a potent phospholipid activator and mediator of many leukocyte functions, platelet aggregation and degranulation, inflammation, and anaphylaxis.

Lymphocytosis is an increase in the number of lymphocytes in the blood.

Apheresis (ἀφαίρεσις (aphairesis, "a taking away")) is a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation.

Hemolytic disease of the newborn, also known as hemolytic disease of the fetus and newborn, HDN, HDFN, or erythroblastosis fetalis, is an alloimmune condition that develops in a fetus, when the IgG molecules (one of the five main types of antibodies) produced by the mother pass through the placenta.

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

An azurophilic granule is a cellular object readily stainable with a Romanowsky stain.

Erythroferrone is a protein hormone, abbreviated as ERFE, encoded in humans by the FAM132B gene.

Leucogenenol is a blood cell stimulating secondary metabolite isolated from the mold Penicillium gilmanii.

1q21.1 deletion syndrome or 1q21.

A venous thrombus is a blood clot (thrombus) that forms within a vein.

Leukocyte adhesion deficiency (LAD), is a rare autosomal recessive disorder characterized by immunodeficiency resulting in recurrent infections.

Hepcidin is a protein that in humans is encoded by the HAMP gene.

Theta-defensins (θ-defensins. retrocyclins) are a family of mammalian antimicrobial peptides.

Complement component 4 (C4), in humans, is a protein involved in the intricate complement system, originating from the human leukocyte antigen (HLA) system.

Cigar cells (also referred to as pencil cells) are red blood cells that are cigar or pencil shaped on Peripheral blood smear.

Divicine (2,6-diamino-4,5-dihydroxypyrimidine) is an oxidant and a base with alkaloidal properties found in fava beans and Lathyrus sativus.

The SFTS virus (SFTS, Huaiyangshan virus) is a phlebovirus in the family Bunyaviridae.