- A Case of Pheochromocytoma Presenting as Syncope Due to Orthostatic Hypotension.
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Ji Yeun Kim, Sung Woo Kim, Seung Jun Lee, Hyun Sook Kim, Eui Dal Jung, Yun Seop Kum
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Endocrinol Metab. 2011;26(2):155-159. Published online June 1, 2011
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DOI: https://doi.org/10.3803/EnM.2011.26.2.155
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- Patients with pheochromocytoma manifest with headache, perspiration, and palpitation. Although most patients have either sustained or paroxysmal hypertension, some patients present with hypotension. However, severe orthostatic hypotension is relatively rare in patients with pheochromocytoma. We report here on a 72-year-old woman with pheochromocytoma and she presented with recurrent syncope due to hypotension and blood pressure fluctuation. Syncope due to hypotension is unusual in patients with pheochromocytoma and only a few such cases have been reported. The present case serves to illustrate an unexpected presentation of this tumor.
- A Case of Familial Isolated Primary Hyperparathyroidism with a Novel Gene Mutation.
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Sung Woo Kim, Seung Jun Lee, Hyun Suk Kim, Ji Youn Kim, Eui Dal Jung, Duk Su Jung
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Endocrinol Metab. 2010;25(4):374-377. Published online December 1, 2010
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DOI: https://doi.org/10.3803/EnM.2010.25.4.374
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Abstract
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- Familial isolated primary hyperparathyroidism (FIHP) is an autosomal dominant disorder that is characterized by an early stage of either multiple endocrine neoplasia type 1 (MEN1) or hyperparathyroidism-jaw tumor (HPT-JT) syndrome. We report here on a case of a 42-years old woman who was diagnosed with papillary thyroid cancer and primary hyperparathyroidism. Her younger brother also had primary hyperparathyroidism. On the genetic analysis, they were both proven to have a novel frameshift mutation in the MEN1 gene (exon 10).
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