Something to Sink Your Teeth Into

Steven M. Couch, Scott E. Brodie, Jacqueline A. Leavitt, Michael C. Brodsky

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


A 21-year-old Kuwaiti man had cerebral palsy, retinitis pigmentosa, hypertension, and renal failure. His younger brother and sister displayed similar findings. Ocular motility examination disclosed aperiodic alternating skew deviation in the patient and his younger brother. Magnetic resonance imaging showed hypoplasia of the superior cerebellar vermis with a " molar tooth" sign. Genetic testing confirmed an AHPI gene mutation on chromosome 6p23.3 in the patient and his siblings, confirming the diagnosis of Joubert syndrome. This case demonstrates the need to consider the diagnosis of Joubert syndrome in adults with retinitis pigmentosa or familial alternating skew deviation.

Original languageEnglish
Pages (from-to)544-549
Number of pages6
JournalSurvey of ophthalmology
Issue number6
StatePublished - Nov 2011


  • Alternating skew deviation
  • Joubert syndrome
  • Molar tooth sign
  • Retinitis pigmentosa


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