<unk>  can be best understood by comparing it to other conditions: Condition Appearance PTH levels Calcitriol Calcium Phosphates Imprinting Hypoparathyroidism Normal Low Low Low High Not applicable Pseudohypoparathyroidism Type 1A Skeletal defects High Low Low High Gene defect from mother (GNAS1) Type 1B Normal High Low Low High Gene defect from mother (GNAS1 and STX16) Type 2 Normal High Low Low High ?<unk>  Skeletal defects Normal Normal Normal Normal Gene defect from father Hormone resistance is not present in<unk> . Short stature may be present. Obesity is less common in<unk>  than in Pseudohypoparathyroidism. Osteoma cutis may be present.
Pseudopseudohypoparathyroidism
Hypoparathyroidism
Pseudohypoparathyroidism
Tertiary hyperparathyroidism
Albright's hereditary osteodystrophy
Secondary hyperparathyroidism
Primary hyperparathyroidism
X-linked recessive hypoparathyroidism