Pseudohypoparathyroidism physical examination
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mazia Fatima, MBBS [2]
Overview
Patients with pseudohypoparathyroidism type1a , type 1c and pseudopseudohypoparathyroidism presents by the second decade of life with characteristic physical features of Albright's hereditary osteodystrophy.Pseudohypoparathyroidism Type 1B isolated resistance to parathyroid hormone without the associated clinical features of Albright's osteodystrophy. Mild brachydactyly is seen in some cases.Blomstrand's chondrodystrophy presents with short limbs due to characteristic growth impairment.Secondary hyperplasia of the parathyroid glands occurs as a result of associated hypocalcemia.
Physical Examination
Appearance of the Patient
- Patients with pseudohypoparathyroidism type1a , type 1c and pseudopseudohypoparathyroidism presents by the second decade of life with characteristic physical features of Albright's hereditary osteodystrophy.
- Pseudohypoparathyroidism Type 1B is not associated with clinical features of Albright's osteodystrophy. Mild brachydactyly is seen in some cases.
Skin
Albright's hereditary osteodystrophy: Subcutaneous ossifications, Obesity
HEENT
Acrodysostosis: Small, flat, upturned nose
Blomstrand's chondrodystrophy:
- Protruding eyes showing cataracts
- Facial anomalies like
- Macroglossia
- Micrognathia
- Depressed nasal bridge
- Albright's hereditary osteodystrophy: Round face, Frontal bossing, Dental hypoplasia
Lungs
Blomstrand's chondrodystrophy:
Narrow thorax,
- Hydrops fetalis
Abdomen
Blomstrand's chondrodystrophy:Polyhydramnios
Genitourinary
Acrodysostosis: Hypoplastic genitalia, Cryptorchidism
Extremities
Acrodysostosis :Short hands
Blomstrand's chondrodystrophy:
- Short limbs
- Dwarfism
- Increased bone mineral density and advanced bone maturation in the fetues resulting in neonatal death
- Albright's hereditary osteodystrophy:Shortening of third, fourth, and fifth metacarpals and metatarsals
Neuromuscular
Albright's hereditary osteodystrophy: Mild to moderate intellectual disability