From Citizendium - Reading time: 1 min| Homocystinuria | |
|---|---|
| OMIM | 236200 |
| MedlinePlus | 001199 |
| MeSH | D006712 |
In medicine, homocystinuria is an "autosomal recessive inborn error of methionine metabolism usually caused by a deficiency of cystathionine beta-synthase and associated with elevations of homocysteine in plasma and urine. Clinical features include a tall, slender habitus, scoliosis, arachnodactyly, muscle weakness, genu varis, thin blond hair, malar flush, lens dislocations, an increased incidence of mental retardation, and a tendency to develop fibrosis of arteries, frequently complicated by cerebrovascular accidents and myocardial infarction.[1][2]