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Hemolytic uremic syndrome, atypical, susceptibility to, 1
Hemolytic-uremic syndrome (HUS) is characterized by hemolytic anemia, thrombocytopenia, and renal failure caused by platelet thrombi in the microcirculation of the kidney and other organs. The onset of atypical HUS (aHUS) ranges from the neonatal period to adulthood. Genetic aHUS accounts for an estimated 60% of all aHUS. Individuals with genetic aHUS frequently experience relapse even after complete recovery following the presenting episode; 60% of genetic aHUS progresses to end-stage renal disease (ESRD). [from GeneReviews]
Atypical hemolytic-uremic syndrome with C3 anomaly
Atypical hemolytic-uremic syndrome with MCP/CD46 anomaly
Atypical hemolytic-uremic syndrome with thrombomodulin anomaly
Atypical hemolytic-uremic syndrome with I factor anomaly
Atypical hemolytic-uremic syndrome with B factor anomaly
Upshaw-Schulman syndrome
Hereditary thrombotic thrombocytopenic purpura (TTP), also known as Upshaw-Schulman syndrome (USS), is a rare autosomal recessive thrombotic microangiopathy (TMA). Clinically, acute phases of TTP are defined by microangiopathic mechanical hemolytic anemia, severe thrombocytopenia, and visceral ischemia. Hereditary TTP makes up 5% of TTP cases and is caused mostly by biallelic mutation in the ADAMTS13 gene, or in very rare cases, by monoallelic ADAMTS13 mutation associated with a cluster of single-nucleotide polymorphisms (SNPs); most cases of all TTP (95%) are acquired via an autoimmune mechanism (see 188030). Hereditary TTP is more frequent among child-onset TTP compared with adult-onset TTP, and its clinical presentation is significantly different as a function of its age of onset. Child-onset TTP usually starts in the neonatal period with hematological features and severe jaundice. In contrast, almost all cases of adult-onset hereditary TTP are unmasked during the first pregnancy of a woman whose disease was silent during childhood (summary by Joly et al., 2018). [from OMIM]
Kasabach-Merritt syndrome
Although cutaneous hemangiomas are common benign tumors in neonates, they can be life-threatening when they are associated with thrombocytopenia, consumptive coagulopathy, microangiopathic hemolytic anemia, and rapid enlargement, a clinical presentation known as Kasabach-Merritt syndrome (KMS). Untreated, KMS has a 10 to 37% mortality rate (Szlachetka, 1998). With giant hemangiomas in small children, thrombocytopenia and red cell changes compatible with trauma ('microangiopathic hemolytic anemia') have been observed. The mechanism of the hematologic changes is obscure. No evidence of a simple genetic basis has been discovered. Reviews Szlachetka (1998) reviewed the approximately 205 reported cases of KMS and discussed the pathophysiology, clinical manifestations, differential diagnosis, and treatment modalities of the disorder. [from OMIM]
Microangiopathic hemolytic anemia
Acquired anemia due to destruction of red blood cells by physical trauma such as FIBRIN strands in the blood vessels, artificial heart valve, AORTIC COARCTATION. I can also be associated with hematologic diseases such as DISSEMINATED INTRAVASCULAR COAGULATION; HEMOLYTIC-UREMIC SYNDROME; and THROMBOTIC THROMBOCYTOPENIC PURPURA. [from MeSH]
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