Deafness-intellectual disability syndrome, Martin-Probst type

What is Deafness-intellectual disability syndrome, Martin-Probst type?

Deafness-intellectual disability syndrome, Martin-Probst type is characterised by severe bilateral deafness, intellectual deficit, umbilical hernia and abnormal dermatoglyphics. It has been described in three males from three generations of one family. Mild facial dysmorphism (telangiectasias, hypertelorism, dental anomalies and a wide nasal root) was also present. Short stature, pancytopaenia, microcephaly, and renal and genitourinary anomalies were present in some of the patients. The mode of transmission is X-linked recessive and the causative gene has been localised to the q1-21 region of the X chromosome.

Other condition names

  • Hearing loss-intellectual disability syndrome, Martin-Probst type
  • Martin-Probst syndrome
  • X-linked deafness-intellectual disability syndrome syndrome
  • X-linked hearing loss-intellectual disability syndrome syndrome

Inheritance type

X-linked recessive


  • Worldwide: <1 in 1,000 000

Age of Onset

  • Infancy
  • Neonatal
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