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KMID : 0980720130320010092
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Keimyung Medical Journal
2013 Volume.32 No. 1 p.92 ~ p.97
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A Misdiagnosed Case of Secondary Adrenal Insufficiency Due to Pituitary Macroadenoma as Syndrome of Inappropriate Secretion of Antidiuretic Hormone (SIADH)
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Kim Han-Byul
Lee Ye-Yeon
Cho Nan-Hee
Han Eu-Gene
Jeong Hye-Jin
Kim Sang-Jin
Lee Ho-Young
Kim Sang-Yoon
Kim Mi-Kyung
Kim Hye-Soon
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Abstract
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Hyponatremia is caused by various conditions and diseases, so it needs a precise and careful assessment and appropriate management. We described a 57-year-old male with a hyponatremia, presenting with general weakness and weight loss. Thyroid function test and rapid adrenocorticotropic hormone (ACTH) stimulation test was normal, so we assessed him as a syndrome of inappropriate secretion of antidiuretic hormone (SIADH). But in imaging work up of pituitary gland reveals a non-functioning pituitary mass and we performed a insulin secretion stimulation test and we diagnosed a secondary adrenal insufficiency. Thus, we report misdiagnosed case of secondary adrenal insufficiency due to pituitary macroadenoma as syndrome of inappropriate secretion of antidiuretic hormone (SIADH).
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KEYWORD
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Hyponatremia, Pituitary macroadenoma, Secondary adrenal insufficiency
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