title: A chromosomal abnormality (21q-) in primary thrombocytosis.
abstract: A patient with thrombocytosis was found to present an acquired deletion of the long arm of chrosome 21 (21q-). A similar observation reported in the literature is hereby confirmed.
mesh_terms: D000368:Aged; D002872:Chromosome Deletion; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D013922:Thrombocytosis / Q000235:genetics*