SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/720521008
http://purl.bioontology.org/ontology/SNOMEDCT/720521008
Preferred Name

Autosomal dominant macrothrombocytopenia

Definitions
This syndrome has characteristics of congenital thrombocytopenia associated with the presence of large platelets. To date less than 10 cases are reported. The syndrome is caused by mutations in the integrin, beta 3 ITGB3, tubulin, beta-1TUBB1 and actinin, alpha1 ACTN1 genes. These mutations lead to abnormal proplatelets and thrombocytopenia. Transmission is autosomal dominant. A rare isolated constitutional thrombocytopenia characterized by abnormally large platelets. A rare isolated constitutional thrombocytopenia characterised by abnormally large platelets.
Synonyms
Autosomal dominant macrothrombocytopenia (disorder)
Type http://www.w3.org/2002/07/owl#Class
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