<unk>  is a rare autosomal dominant hereditary disorder. Its name is an initialism of "osteosarcoma, limb anomalies, and erythroid macrocytosis with megaloblastic marrow syndrome".<unk>  was recognised and described by Mulvilhill as a syndrome that increases susceptibility to tumours and is characterised by an impaired regulation of bone and marrow development. Individuals with<unk>  have an elevated risk of bone cancer, limb abnormalities, and enlarged red blood cells.
OSLAM syndrome
CREST syndrome
SUNCT syndrome
Pitt–Hopkins syndrome
EAST syndrome
SACRAL syndrome
MASA syndrome
Hopkins syndrome