1 MCQs in Anatomy for NEET PG
A 28-year-old man presents with polyuria and polydipsia. Serum sodium is 148 mEq/L and urine osmolality is 180 mOsm/kg despite elevated serum osmolality. Sagittal T1 MRI of the sella is performed. The structure marked **B** (posterior pituitary) shows ABSENCE of the normal hyperintense signal. Which of the following is the most likely diagnosis?
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