I hope someone out there can shed some light on this baffeling case.18mo male presents with FTT (Failure to thrive). Labs indicate Alk Phos. of 3000!! All other labs normal. Urine, stool and all other liver tests normal. No cystic fibrosis, no celiac. All areas of development are normal. Birth history is unremarkable. Has anyone come across this in their practice and if so any clue where to go from here?? Oh ya, GI and Endocrine and Nutrition involved...everyone is stumped!Thanks to all who reply.