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Blepharophimosis-intellectual disability syndrome, Ohdo type
Ohdo blepharophimosis syndrome (OBS) is a multiple congenital malformation syndrome characterized by blepharophimosis, ptosis, dental hypoplasia, hearing impairment and intellectual disability.
So far, less than 30 patients have been reported worldwide.
Abnormal ears, microcephaly, and growth retardation have been reported occasionally. Male patients may show cryptorchidism and scrotal hypoplasia.
Most reported cases are sporadic, except the original cases of Ohdo who described two affected sisters and a first cousin, favoring autosomal recessive inheritance. Autosomal dominant, X-linked- and mitochondrial inheritance have also been suggested.
- Clinical genetics review
- English (2013)