Fasting hyperglycemia is almost always seen in: (A) Gastric carcinoma, (B) Pheochromocytoma, (C) Adrenal tumour, (D) Carcinoid tumour
Answer is B. fasting glucose levels greater than or equal to 7.0 mmol/l, is frequently present in patients with phaeochromocytoma (24% in the present study) and the diabetes is reversed by removal of the tumour(pheochromocytoma). Ref - Harrison20th edition pg 99