It has been reported that some patients have been misdiagnosed with Primary Hyperparathyroidism, when in fact the correct diagnosis in their specific case was Osteoporosis.
Osteoporosis or brittle bone disease is the loss of bone density which causes your bones to become fragile and prone to breakage. Bones are constantly breaking down and renewing themselves but as you age the body breaks its bones down faster than it recreates it causing weak porous bones. Menopausal women are at the highest risk. Symptoms include back pain caused by fractured or collapsed vertebra, bones that break more easily than expected, loss of height over time and a stooped posture. Osteoporosis can be misdiagnosed as osteomalacia (bone softening due to severe vitamin C deficiency), multiple myeloma and primary hyperparathyroidism.