This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
The given manifestation is the most common symptom of which of the following neuroendocrine tumor of pancreas? 
Select and explain. 
A. Insulinoma, B. Glucagonoma, C. Gastrinoma, D. Somatostatinoma
B: Glucagonoma
Answer: B: Glucagonoma 
Explanation: The image shows Central necrosis & Peripheral Erythema "Necrolytic Erythema Migrans". It is the most common manifestation of Glucagonoma Glucagonoma / Hyperglycemic Cutaneous Syndrome. 4 D Syndrome Diabetes Mellitus - Dermatitis (M.C symptom) "Necrolytic Erythema Migrans" DVT Depression M.C site of tumor - Body & Tail of pancreas. Malignant Rx of choice: Distal Pancreatectomy.