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Pseudohypoparathyroidism

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Signs & Symptoms

 Malrotated ears (negative symptom)
Ref: Epocrates [ Differential Diagnosis]
High-arched palate (negative symptom)
Ref: Epocrates [ Differential Diagnosis]
Low posterior hairline (negative symptom)
Ref: Epocrates [ Differential Diagnosis]
Muscle twitches
Note: due to Hypocalcemia
Ref: Epocrates [ History & Exam]

Physical Examination

 Short dental roots
Note: due to Albright hereditary osteodystrophy
Ref: Epocrates [ History & Exam]
Low posterior hairline (negative symptom)
Ref: Epocrates [ Differential Diagnosis]
High-arched palate (negative symptom)
Ref: Epocrates [ Differential Diagnosis]

Lab / Serology

 Hyperphosphatemia
Note: Typically elevated or may be normal
Ref: Epocrates [ Tests]
Hypocalcemia
Note: Typically low or may be normal
Ref: Epocrates [ Tests]
Elevated Parathyroidhormone
Note: Typically elevated or may be normal
Ref: Epocrates [ History & Exam]

Imagin Study

 Prominence of the lower end of the ulna
Ref: Epocrates [ Tests]
Ulnar deviation of the carpal bones
Ref: Epocrates [ Tests]
Palmar deviation of the carpal bones
Ref: Epocrates [ Tests]

Complication

 Prolonged QT interval
Note: due to Hypocalcemia
Ref: Epocrates [ Tests]
Stridor
Note: due to Hypocalcemia
Ref: Epocrates [ History & Exam]
Subdermal ossification
Note: due to Hyperphosphatemia
Ref: Epocrates [ History & Exam]

Risk Factors

Cause

Other