Transient insulin‐treated diabetes mellitus in a patient with pancreatic tuberculosis

Isolated pancreatic tuberculosis (TB) is uncommon, and overt diabetes mellitus subsequent to it is rare. We report an unusual case of transient diabetes mellitus in a 46‐year‐old Asian man, nearly three months after a modified Whipple's surgical procedure for pancreatic TB. Our patient had severe hyperglycaemia initially requiring insulin treatment followed by recurrent hypoglycaemia over the next two weeks and near normalisation of blood glucose without any medication thereafter. We discuss the likely pathogenic mechanisms leading to the unusual course of diabetes mellitus in our patient. Copyright © 2012 John Wiley & Sons.