<prompt> Fasting hyperglycemia is almost always seen inGastric carcinomaPheochromocytomaAdrenal tumourCarcinoid tumour  <response>: fasting glucose levels greater than or equal to 7.0 mmoll, is frequently present in patients with phaeochromocytoma 24 in the present study and the diabetes is reversed by removal of the tumourpheochromocytoma. Ref - Harrison20th edition pg 99 