A 40-Year-Old Woman Presented to the Office Complaining of Excessive

A 40-year-old woman presented to the office complaining of excessive thirst and urination in the last month. 4 months ago, the patient had surgery for a brain tumor. Her urine osmolality after 4 hours of water restriction is 230 mOsml/L, increased to 700 mOsm/L after desmopressin administration. The patient is started on desmopressin, her symptoms have resolved. Over the next year, the patient could not wean the medication, and her condition has been permanent. This presentation is best explained by injury to which of the following structures?

A) Anterior Pituitary
B) Hypothalamus
C) Kidney Tubuli
D) Posterior Pituitary

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free