Endocrinology and Metabolism

Tae Wha Kim (Kim TW)

12 Articles

A Case of Pseudohypoparathyroidism with Graves' Disease.: Gil Woo Lee, Jae Hoon Kim, Kang Won Lee, Sa Il Kim, Sang Mo Hong, Dong Sun Kim, Woong Hwan Choi, You Hern Ahn, Tae Wha Kim; Endocrinol Metab. 2010;25(3):221-225. Published online September 1, 2010; DOI: https://doi.org/10.3803/EnM.2010.25.3.221

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Abstract PDF: Pseudohypoparathyroidism is a rare disease that is characterized by target cell resistance to the effects of parathyroid hormone and this disease is classified into various types depending on the phenotypic and biochemical findings. The patients with pseudohypoparathyroidism present with the clinical and biochemical features of hypoparathyroidism, but they have an increased serum level of parathyroid hormone. We experienced a case of pseudohypoparathyroidism in a 24 years old woman who had Graves' disease at that time. She had hypocalcemia, hyperphosphatemia, an elevated serum parathyroid hormone level and a normal urinary basal cyclic AMP(adenosine monophosphate) level. She also had a normal phenotypic appearance. Therefore, she was classified as suffering with pseudohypoparathyroidism type II. The clinical and laboratory abnormalities were improved by calcium supplementation in addition to vitamin D. To the best of our knowledge, this is the first case of pseudohypoparathyroidism combined with Graves' disease in Korea.

Prevalence of Thyroid Nodules Detected by Ultrasonography in Adults for Health Check-Ups and Analysis of Fine Needle Aspiration Cytology.: Won Jun Kim, Joo Hyong Kim, Dong Won Park, Chang Beom Lee, Yong Soo Park, Dong Sum Kim, Woong Hwan Choi, Tae Wha Kim, You Hern Ahn; J Korean Endocr Soc. 2008;23(6):413-419. Published online December 1, 2008; DOI: https://doi.org/10.3803/jkes.2008.23.6.413

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BACKGROUND
The purpose of this study was to assess the prevalence of thyroid nodules in healthy adults without a history of thyroid disease and the results of fine needle aspiration cytology (FNAC). METHODS: We retrospectively studied 4,832 adults (2,427 women, 2,405 men) over the age of 20 who had visited our health care center from January, 2005, to March, 2008. Subjects with previous thyroid disease were excluded. All were screened by thyroid ultrasonography and FNAC was performed on large or potentially malignant nodules. RESULTS: Thyroid nodules were present in 686 women (28.3%) and 396 men (16.5%), with a female predominance (odds ratio = 1.47, 95% CI = 1.35~1.60). The prevalence of a thyroid nodule was significantly correlated with age in both women and men (P < 0.001). Multinodularity also increased according to age in both groups. Ninety patients were tested with conventional FNAC and 195 underwent ultrasonography-guided FNAC. The rate of inadequate cytology by ultrasonographic guidance was lower than by freehand methods, and the total rate of malignant cytology per patient was 17.9%. Ultrasonographic characteristics that significantly correlated with histologically-confirmed papillary carcinoma included a solid component, hypoechogenecity, irregular margin, and the presence of microcalcification or macrocalcification. CONCLUSION: The prevalence of thyroid nodules detected by ultrasonography was 28.3% in healthy women and 16.5% in healthy men population. The prevalence and multinodularity was significantly correlated with age in both groups. It's useful to examine thyroid by ultrasonography because of detecting more nodules, providing guidance of FNAC, achieving more adequate sampling and not missing small malignant nodules.

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The Prevalence of Thyroid Nodules and the Morphological Analysis of Malignant Nodules on Ultrasonography
An Hyun, Ji Tae-jeong, Lee Hyo-young, Im In-chul
Journal of Radiological Science and Technology.2019; 42(3): 201. CrossRef
Ultrasonographic Characteristics of the Hyperfunctioning Thyroid Nodule and Predictive Factors for Thyroid Stimulating Hormone Suppression
Won Sang Yoo, Hoon Sung Choi
International Journal of Thyroidology.2019; 12(1): 35. CrossRef
Prevalence and Annual Incidence of Thyroid Disease in Korea from 2006 to 2015: A Nationwide Population-Based Cohort Study
Hyemi Kwon, Jin-hyung Jung, Kyung-Do Han, Yong-Gyu Park, Jung-Hwan Cho, Da Young Lee, Ji Min Han, Se Eun Park, Eun-Jung Rhee, Won-Young Lee
Endocrinology and Metabolism.2018; 33(2): 260. CrossRef
Prevalence of thyroid nodules and their associated clinical parameters: a large-scale, multicenter-based health checkup study
Jae Hoon Moon, Min Kyung Hyun, Ja Youn Lee, Jung Im Shim, Tae Hyuk Kim, Hoon Sung Choi, Hwa Young Ahn, Kyung Won Kim, Do Joon Park, Young Joo Park, Ka Hee Yi
The Korean Journal of Internal Medicine.2018; 33(4): 753. CrossRef
Analysis of Fine Needle Aspiration Results of Thyroid Nodules in Ultrasonography
Jong-Gil Kwak, Jae-Bok Han, Jong-Nam Song, Il-Bong Moon, Nam-Gil Choi
The Journal of the Korea Contents Association.2016; 16(5): 290. CrossRef
Clinical Characteristics and Incidence of Thyroid Nodule in the Male Population for Health Check-up
Yeon Jin Jeon, Young Teag Koh, Seung Jong Oh, Min Young Koo
Korean Journal of Endocrine Surgery.2015; 15(4): 93. CrossRef
Clinical Characteristics and Incidence of Thyroid Nodule in the Male Population for Health Check-up
Yeon Jin Jeon, Young Teag Koh, Seung Jong Oh, Min Young Koo
Korean Journal of Endocrine Surgery.2015; 15(4): 93. CrossRef
Management of Thyroid Nodules and Cancers Arising in the Elderly
Eunyoung Kim, June Young Choi, Kyu Eun Lee
Journal of Korean Thyroid Association.2012; 5(2): 99. CrossRef
Screening of Thyroid Cancer and Management of Thyroid Incidentaloma
Jung Jin Cho
Korean Journal of Family Medicine.2010; 31(2): 87. CrossRef

A Case of Thyrotoxicosis Presented as Rhabdomyolysis.: Yil Sik Hyun, Chang Beom Lee, Yong Soo Park, Dong Sun Kim, Woong Hwan Choi, Tae Wha Kim, You Hern Ahn; J Korean Endocr Soc. 2005;20(4):381-384. Published online August 1, 2005; DOI: https://doi.org/10.3803/jkes.2005.20.4.381

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There have been a few reports on rhabdomyolysis caused by thyroid storm, but no cases of thyrotoxicosis related rhabdomyolysis have been reported until now. Here, a rare case of rhabdomyolysis, accompanied by thyrotoxicosis, is reported. A 21-year-old man was admitted to our hospital with severe pain and weakness in both legs. The initial laboratory findings revealed a high muscle enzyme level and severe hypokalemia. In evaluation of the rhabdomyolysis, the thyroid function test was compatible with that of Graves' disease, with the rhabdomyolysis subsequently diagnosed, presenting as thyrotoxicosis. The possible mechanisms for this complaint were hypokalemia-induced muscle ischemia, a thyrotoxicosis-induced excessive hypermetabolic state and pressure-induced muscle ischemia. Therefore, the work up for the cause of rhabdomyolysis should include thyrotoxicosis. The management of rhabdomyolysis is hydration, prevention of acute renal failure, correction of aggravating factors and treatment of the underlying cause, for example, thyrotoxicosis.

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A Case of Thyrotoxic Periodic Paralysis with Rhabdomyolysis
Seo Hee Lee, Seong Yeol Kim, Hae Ri Lee, Jun Goo Kang, Ohk Hyun Ryu, Chul Sik Kim, Byung Wan Lee, Seong Jin Lee, Eun-Gyoung Hong, Hyeon Kyu Kim, Doo-Man Kim, Jae Myung Yu, Sung-Hee Ihm, Moon Gi Choi, Hyung Joon Yoo
Journal of Korean Endocrine Society.2008; 23(6): 425. CrossRef

A Clinical Observation on Twelve Cases of Primary Aldosteronism.: Seung Chul Cho, Yong Soo Park, Hwon Gyum Park, Sung Hee Lee, Soon Gil Kim, Woong Hwan Choi, Yu Hern Ahn, Pa Jong Jung, Tae Wha Kim; J Korean Endocr Soc. 2004;19(2):194-202. Published online April 1, 2004

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Abstract PDF: BACKGROUND
Primary aldosteronism describes a group of disorders characterized by long-standing aldosterone excess, with suppressed renin activity, resulting in hypertension and hypokalemia. The protean clinical and biochemical characteristics of this syndrome have important implications regarding its pathophysiology and responsiveness to treatment. METHODS: The cases of 12 primary aldosteronisms, diagnosed at Hanyang University Hospital between 1996 and 1999, were reviewed. RESULTS: The 12 cases were composed of 9 aldosterone-producing adenoma, 2 adrenal hyperplasia and a case of idiopathic hyperaldosteronism. There were 9 women and 3 men. The mean age was 46 yrs (range, 23 to 64 yrs). At the initial visit, the mean blood pressure was 160+/-26/104+/-14 mmHg, and one case of idiopathic hyperplasia had normal blood pressure. The mean serum K+ level was 2.6+/-0.5 mEq/L (range, 1.5 to 3.5 mEq/L). The mean plasma renin activity and plasma aldosterone concentration were 0.4+/-0.4 ng/ml/hr (range, 0.2 to 1.6 ng/ml/hr) and 407.5+/-199.8 pg/mL (range, 225 to 800 pg/mL), respectively. Different steps of diagnostic modalities were applied for the preoperative differential diagnosis. All patients, with the exception of the one with idiopathic hyperaldosteronism, were managed by a unilateral laparoscopic adrenalectomy, as they were all diagnosed under the impression of adrenal adenomas. Ultimately, 9 cases were proven to have adrenal adenomas. One hypertensive case, with hypokalemia, had adrenal hyperplasia, and the case with normotension was found to have adrenal nodular hyperplasia from the pathology. The size of the tumors ranged from 1.4 to 2.4 cm in diameter. Among the 11 cases that underwent an adrenalectomy, the blood pressures in 6 cases normalized after the operation, while the other 5, including the one with unilateral hyperplasia, were still in need of antihypertensives for the control of elevated blood pressures, even after the operation. The other case of idiopathic hyperaldosteronism was managed by the prescription of spironolactone. CONCLUSION: From these, it can be suggested that the clinical diversity of the syndrome, especially in the pathophysiology and response to operation, awaits the development of a better preoperative lateralization procedure

A Case of Lymphocytic Hypophysitis in a Postmenopausal Woman.: Sang Hyun Baik, Dong Sun Kim, Yoon Kyoung Sung, Jong Pyo Kim, Chang Beom Lee, Yong Soo Park, Woong Hwan Choi, You Hern Ahn, Tae Wha Kim, Yong Ko, Moon Hyang Park; J Korean Endocr Soc. 2002;17(5):713-719. Published online October 1, 2002

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Abstract PDF: A 64-year-old Korean woman presented with a 3-week history of severe headache and ocular pain. Her brain MRI showed a cystic pituitary mass compressing the optic chiasm. A hormonal study revealed anterior pituitary insufficiency and a slightly increased prolactin level. We performed a transsphenoidal resection of the pituitary mass. A pathological examination revealed the presence of a heavy inflammatory infiltrate, composed of lymphocytes and plasma cells, and destruction of the adenohypophysial structures. Five months after surgery, her hormonal levels had nearly normalized, without hormone replacement therapy. A follow-up MRI showed no recurrence. We conclude that lymphocytic hypophysitis should be included in the differential diagnosis of pituitary mass at any age. We discuss the features that can help to make a preoperative differential diagnosis, and selection of the appropriate treatment.

A Case of Sporadic Nonfamilial Hypophosphatemic Osteomalacia.: Jun Goo Kang, Dong Sun Kim, Chan Bum Choi, Tae Jong Kim, Jong Pyo Kim, Chang Beom Lee, Yong Soo Park, You Hern Ahn, Tae Wha Kim, Sang Cheol Bae, Chan Gum Park; J Korean Endocr Soc. 2002;17(4):610-616. Published online August 1, 2002

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Abstract PDF: Acquired hypophosphatemic rickets, or osteomalacia, requires the recognition of the typical clinical and radiological features of osteomalacia in association with hypophosphatemia, which is caused by the decrease in intestinal absorption or impaired renal tubular phosphate reabsorption. The latter form may either be hereditary or acquired. Acquired hypophosphatemic osteomalacia includes oncogenic osteomalacia, neurofibromatosis, fibrous dysplasia, renal tubular acidosis and sporadic nonfamilial hypophosphatemic osteomalacia. A 33-year-old man presented with bone pain, progressive severe muscle weakness and a height loss of more than 10 cm over a 5 year period. The familiy history was negative for bone disease or other renal tubular defects. He was found to have hypophosphatemia, impaired phosphate reabsorption, normocalcemia, normal vitamin D metabolite levels, normal PTH and elevated alkaline phophatase. A bone biopsy showed thickened unmineralized osteoid compared to pelvic bone in control cases. Clinical symptoms, such as bone pain and muscle weakness, were improved after supplementation of oral phosphorus and calcitriol, although the serum phosphorus level did not normalize.

A Case of Thyroid Storm Developed after Dilatation and Curettage for Invasive Molar Pregnancy.: Joon Sung Park, Jun Goo Kang, Chang Beom Lee, Yong Soo Park, Dong Sun Kim, Tae Wha Kim, Joon Soo Hahm, Jung Han Lee, Jung Hyae Hwang, Seung Ryong Kim, You Hern Ahn; J Korean Endocr Soc. 2002;17(4):589-595. Published online August 1, 2002

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Abstract PDF: Thyroid dysfunction is one of the more prevalent clinical situations encountered by primary care physicians. Thyroid storm is defined as a life-threatening exacerbation of the hyperthyroid state in which there is evidence of decompensation of one or more organ systems. Common precipitants include infection, surgery, diabetic ketoacidosis, vascular accidents, non-compliance with antithyroid medication, and emotional stress, but rarely develop in invasive molar pregnancy. An 18-year-old woman presented to the emergency department complaining of lower abdominal pain and vaginal spotting. She had no previous history of hyperthyroidism. Under the diagnosis of invasive molar pregnancy, dilatation and curettage was performed. However, right after the procedure the patient developed a semi-coma metal status, high grade fever, and tachycardia. Prompt diagnosis of thyroid storm was made and treatment followed immediately. We present a case of thyroid storm and a review of thyroid storm precipitated by invasive molar pregnancy.

Effect of TRH on Phospholipase D Activity in GH3 Cell.: Dong Sun Kim, Chang Beom Lee, You Hern Ahn, Tae Wha Kim, Mee Sup Yoon, Joong Soo Han; J Korean Endocr Soc. 2002;17(4):465-472. Published online August 1, 2002

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Abstract PDF: BACKGROUND
GH3 cells are a well characterized and widely used model used for the in vitro study of growth hormone (GH) secretion. Thyrotropin releasing hormone (TRH) binds to receptors belonging to the family of G protein-coupled receptors, and secrets both GH & prolactin. Phospholipase D (PLD) is an enzyme that hydrolyses phosphatidylcholine to yield phosphatidic acid and choline, and plays important roles in cellular proliferation and hormonal secretion. To elucidate the pathway of the action of TRH in GH3 cells, we investigated the activities of PLC and PLD in GH3 cells treated with TRH or phorbor 12-myristate 13-acetate (PMA). METHODS: GH3 cells were labeled with [3H] myristate, followed by incubation of with 0.3% ethanol, prior to before the addition of the agonists. The total lipids were extracted from the harvested cells following treatment with the agonists. The PLD activity was assessed by measuring [3H] phosphatidylethanol from the [3H] phospholipid using thin layer chromatography. RESULTS: TRH (1 muM) stimulated the PLC activity by 44-fold over that of the control values. TRH (1 microM), mastoparan (5 muM), and PMA (500 muM) for 30 minutes increased PLD activity by 1.9, 1.5 and 2.2 fold, respectively, in comparison to the controls. The PLD activities after 15, 30, 60, 120 and 240 min treatments of TRH (1 microM) were 142%, 170%, 172%, 160% and 115%, respectively. CONCLUSION: These results suggest that TRH stimulates not only the PLC activity, but also the PLD activity in GH3 cells.

A Case of Steroid induced Myopathy in Patient with Iatrogenic Cushing Syndrome.: Jun Goo Kang, You Hern Ahn, Joon Sung Park, Chang Beom Lee, Yong Soo Park, Dong Sun Kim, Woong Hwan Choi, Tae Wha Kim, Joon Soo Hahm, Yong Wook Park, Eun Kyung Hong; J Korean Endocr Soc. 2002;17(2):275-279. Published online April 1, 2002

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Abstract PDF: Many endocrinologic diseases can induce muscular diseases. Myopathy caused by exogenous steroid is a common problem in patients prescribed steroids as therapy. We report a case of iatrogenic steroid myopathy in a 55-year-old female who had taken steroids under her own volition at a local pharmacy for more than 3 months due to skin rash and itching. She complained of severe proximal muscle wasting and weakness in the lower extremities and also exhibited other stigmata of Cushing's syndrome such as moon face, buffalo hump or easy bruising. Needle electromyography showed the typical pattern of myopathy. Muscle biopsy revealed intermixed numerous, markedly atrophic and angulated basophilic fibers and a few fat cells without inflammation. In addition there was marked and selective atrophy of type II fiber on ATPase staining in pH 9.4 buffer. After discontinuation of steroid treatment, she has experienced slow improvement through physical therapy, including isotonic exercise.

Long-Term Effect of Glucocorticoid on Differentiation of Bone Marrow Stromal Cells .: Long Term Lee, Yong Soo Park, Dong Sun Kim, Woong Hwan Choi, Yon Hern Ahn, Tae Wha Kim; J Korean Endocr Soc. 2001;16(1):85-96. Published online February 1, 2001

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Abstract PDF: BACKGROUND
Glucocorticoid-induced osteoporosis is characterized by decreased osteoblastic activity and replacement of bone marrow with adipocytes. Since osteoblast and adipocytes are derived from the same mesenchymal stem cell, one might speculate that there is an interaction between these two cells types. In fact, leptin that is secreted from adipocytes is known to stimulate differentiation of osteoblasts, while it inhibits the differentiation of adipocytes. Furthermore, it has been demonstrated that PPAR is present in osteoblasts and it is increased by leptin in adipocytes. However, the role of PPAR and leptin remains unknown in glucocorticoid-induced osteoporosis. The aims of this study are to investigate the effect of glucocorticoid on bone mineral density and gene expression in osteoblasts and adipocytes, and to study the role of PPAR and leptin in the mechanism of glucocorticoid-induced osteoporosis. METHODS: Methylprednisolone, 1 mg/200 g-weight, was injected into five rats (steroid group) and saline was given to five rats (control group) for eight weeks. The bone mineral density was determined by dual energy X-ray absoptiometry. Gene expression of osteocalcin, alkaline phosphatase, lipoptrotein lipase, and PPAR -2 was assessed by RT-PCR. Serum leptin level was measured using a commercial radioimmunoassay kit. RESULTS: 1) The body weight of the steroid group was significantly lower than that of the control group (451.4+/-12.9 g vs. 247.6+/-19.8 g, p<0.05). The bone mineral density of the steroid group tended to be lower than that of the control group (0.27+/-0.01 g/cm2 vs. 0.26+/-0.01 g/cm2, p>0.05). 2) In the steroid group, the gene expressions of osteocalcin (1.00+/-0.08 vs. 0.23+/-0.16, p<0.05) and alkaline phosphatase (0.47+/-0.07 vs. 0.33+/-0.18, p<0.05) were decreased significantly compared to those in controls. 3) In the steroid group, the gene expression of lipoprotein lipase (0.23+/-0.06 vs. 0.39+/-0.12, p>0.05) and+/-PAR 2 (0.17+/-0.08 vs. 0.22+/-0.12, p>0.05) tended to be increased compared to that in the contol group. 4) The serum leptin level of the steroid group tended to be lower than that of the control group (0.20+/-0.12 g/L vs. 0.10+/-0.09 g/L, p>0.05). CONCLUSION: These data suggest that long-term administration of a large dose of glucocorticoid suppresses differentiation of osteoblasts and enhances the differentiation of adipocytes, which may be mediated by increased expression of PPAR and decreased synthesis of leptin.

A Case of Pulmonary Metastasis of Thyroid Papillary Carcinoma Which was Mistaken for Miliary Tuberculosis.: Chang Beom Lee, Seok Cheul Yang, Yong Soo Park, Dong Sun Kim, Woong Hwan Choi, You Hern Ahn, Tae Wha Kim; J Korean Endocr Soc. 2000;15(4-5):600-605. Published online January 1, 2001

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Abstract PDF: Thyroid cancer is the fourth most common malignant tumor in Korean women. It has been acknowledged for a long time that differentiated thyroid cancers have two basic ways of dissemination, lymphtic and hematogenous. Though lymphatic spread to regional lymph nodes is the typical presentation of papillary thyroid cancer of young patients, pulmonary metastasis are not uncommon in this age group. And it is interesting that almost all the patient with metastases to lung showed metastases to the regional neck lymph node. Abnormal chest X-ray of the patient of pulmonary metastasis shows only nonspecific diffuse micronodular pattern which is not easy to be differentiated. And here we report a case of pulmonary metastasis of thyroid papillary carcinoma which was mistaken for pulmonary miliary tuberculosis. It is suggested that more intensive consideration will be necessary for the diagnosis of pulmonary miliaria of children who shows neck mass.

A case report of insulin autoimmune syndrome in graves' disease.: Kyung Sang Lee, Ji Hoon Kim, Woong Hwan Choi, Tae Wha Kim, Mok Hyun Kim; J Korean Endocr Soc. 1993;8(4):451-455. Published online January 1, 2001

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Abstract PDF: No abstract available.

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