- Autosomal Dominant with high penetrance
- Presents in young patients
- Do not miss FBHH as a cause of Hypercalcemia (especially if considering Parathyroidectomy)
-
Serum Calcium
- Lifelong Hypercalcemia
- A prior normal Serum Calcium excludes FBHH
-
Urine Calcium clearance to Creatinine Clearance
- Level <0.01 suggests FBHH
- None