Quantitative PCR reactions were performed too.<h4>Findings</h4>We described a 12- year- old girl with Albright Hereditory osteodystrophy (AHO) phenotype, poor school performance, some abnormal movements, TSH resistance with normal serum calcium and phosphorus levels and normal Gsα bioactivity with no mutation in GNAS exons. Here, GNAS is linked to pseudohypoparathyroidism type 1A.