December, 21 1998

I'm pediatritian working in a portuguese hospital. In my general pediatric consultation we have a boy suffering from moderate mental delay, deafness and branchial clefts. We think he can be considered  number 3133 in POSSUM
classification(Branchio-oto-renal) and we had found in his family similar cases until 4th generation.

Is it possible to know if there are any genetic and molecular studies in this particular situation?

Thank you very much for your help

Sincerely