Renal osteodystrophy and post renal transplantation bone disease are increasingly common causes of pathological fracture. The authors present the first case of a pathological hangman's fracture in a patient after successful renal transplantation. An anterior instrumented C2-C4 fusion was performed.

The diagnosis of pseudohypoparathyroidism type 1a (PHP1a) is challenging, because both the osteodystrophy, such as brachydactyly and round face, and the symptomatic hypocalcemia usually develop beyond infancy. Although ectopic calcification may be an early sign of PHP1a, there are no systematic reviews regarding the time of its appearance. We here report on two PHP1a patients who presented with...