Anaphylactoid purpura with cardiac involvement.

hydroxyproline level when the alkaline phosphatase level is of the order found in this patient. Further evidence of normal bone metabolism was obtained from the normal hydroxyproline excretion. There was no laboratory evidence to suggest hyperparathyroidism. The normal galatose-l-phosphate uridyl transferase level ruled out galactosaemia. Though a diagnosis of glycogen storage disease was considered, no confirmatory laboratory evidence was found. The high serum alkaline phosphatase level in this boy has not been explained.