Pseudohypoparathyroidism classification

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mazia Fatima, MBBS [2]

Overview

Pseudohypoparathyroidism is classified based on the measurement of serum and urinary cyclic adenosine monophosphate (cAMP) and phosphate levels after injection of biologically active parathyroid hormone into the suspected patient.

Classification

Pseudohypoparathyroidism is classified based on the measurement of serum and urinary cAMP and phosphate excretion levels after injection of biologically active parathyroid hormone. The following are the different types of pseudohypoparathyroidism:^[1]

Pseudohypoparathyroidism type I
Pseudohypoparathyroidism type II

Pseudohypoparathyroidism type 1 is further classified into following subtype:

Pseudohypoparathyroidism type 1a
Pseudohypoparathyroidism type 1b
Pseudohypoparathyroidism type 1c
Pseudopseudohypoparathyroidism

Other forms of parathyroid hormone resistance include :

Blomstrand syndrome
Acrodysostosis type 1
Acrodysostosis type 2

References

↑ Marx SJ (2000). “Hyperparathyroid and hypoparathyroid disorders”. N. Engl. J. Med. 343 (25): 1863–75. doi:10.1056/NEJM200012213432508. PMID 11117980.

Template:WikiDoc Sources

[pmid11117980-1] Marx SJ (2000). “Hyperparathyroid and hypoparathyroid disorders”. N. Engl. J. Med. 343 (25): 1863–75. doi:10.1056/NEJM200012213432508. PMID 11117980.

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