Symptom Information: Sort according to HPO 

1
 (HPO:0001249) Intellectual disability 1089 / 7739
2
 (HPO:0007503) Generalized ichthyosis 1 / 7739
3
 (OMIM) Unusually large oval keratohyalin granules in granular cells. 1 / 7739
4
 (HPO:0000007) Autosomal recessive inheritance 2538 / 7739