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Microphthalmia with linear skin defects syndrome

Synonym(s) MCOPS7
MIDAS syndrome
MLS syndrome
Microphthalmia - dermal aplasia - sclerocornea
Syndromic microphthalmia type 7
Prevalence <1 / 1 000 000
Inheritance X-linked dominant
Age of onset Infancy
  • Q11.2
  • C0796070
MeSH -
MedDRA -


MIDAS syndrome (Microphthalmia, Dermal Aplasia, and Sclerocornea), also called microphthalmia with linear skin defects syndrome, is characterized by ocular defects (microphthalmia, orbital cysts, corneal opacities) and linear skin dysplasia of the neck, head, and chin. It has been reported in less than 50 patients. Additional findings may include agenesis of corpus callosum, sclerocornea, chorioretinal abnormalities, hydrocephalus, seizures, intellectual deficit, and nail dystrophy. It is transmitted as an X-linked dominant trait with male lethality.

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Clinical genetics review
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