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an endocrine abnormality in which patients have the phenotypic features characteristic of hypoparathyroidism but in whom the parathyroid glands are essentially normal. The typical clinical features include short stature, round face, short neck, and shortening of metacarpal bones with low serum calcium and high serum phosphorus levels. However, in pseudohypoparathyroidism parathyroid hormone levels are elevated, perhaps owing to the ineffective hormone action at the kidney with secondary hyperphosphatamia and hypocalcaemia (Fig.1 and Fig.2).
DR/RB
The Encyclopaedia of Medical Imaging Volume III 1
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Pseudohypoparathyroidism, Fig. 1 a. AP radiograph of the hand demonstrates short metacarpals and phalanges. Scattered soft tissue calcifications are also present.
b. Lateral radiograph of the scalp demonstrates numerous nodular soft tissue calcifications.Pseudohypoparathyroidism, Fig. 2 Axial CT scan of the brain demonstrates basal ganglia calcification.
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