5 Questions
What are the frequent causes of SIADH?
The frequent causes of SIADH are the secretion of ectopic ADH by malignant neoplasms (particularly small-cell carcinoma of the lung), drugs that increase ADH secretion, and a variety of central nervous system disorders, including infections and trauma.
What are the clinical manifestations of SIADH dominated by?
The clinical manifestations of SIADH are dominated by hyponatremia, cerebral edema, and resultant neurologic dysfunction.
What are the most commonly implicated tumors in the case of Hypothalamic Suprasellar Tumors?
The most commonly implicated tumors are gliomas (sometimes arising in the chiasm; Chapter 28) and craniopharyngiomas.
What is the age distribution observed for craniopharyngiomas?
A bimodal age distribution is observed, with one peak in childhood (5 to 15 years) and a second peak in adults 65 years or older.
How do patients with craniopharyngiomas usually come to attention?
Patients usually come to attention because of headaches and visual disturbances, while children sometimes present with growth retardation due to pituitary hypofunction and GH deficiency.
Test your knowledge of Syndrome of Inappropriate Antidiuretic Hormone (SIADH) with this quiz. Learn about the causes, clinical manifestations, and associated conditions.
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