1 MCQs in Dermatology for NEET PG
A 52-year-old woman presents with a 6-month history of progressive, migratory erythematous plaques with central erosion and crusting over the perineum, groin, and perioral region. She reports new-onset diabetes mellitus and weight loss. Laboratory investigations reveal serum glucagon 850 pg/mL (normal <150 pg/mL) and CT abdomen shows a 6 cm mass in the pancreatic tail with hepatic metastases. The cutaneous manifestation marked **B** in the diagram is pathognomonic for which underlying neoplasm?
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