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Seok Hwan Kim  (Kim SH) 2 Articles
A Case of Gastrointestinal Stromal Tumor with Recurrent Hypoglycemia.
Sun Hee Ko, Seok Hwan Kim, Il Ho Maeng, Koon Soon Kim, Yi Sun Jang, Hye Soo Kim, Jong Min Lee, Suk Young Park, Sang Bum Kang
Endocrinol Metab. 2010;25(2):125-130.   Published online June 1, 2010
DOI: https://doi.org/10.3803/EnM.2010.25.2.125
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Non-islet cell tumor induced hypoglycemia (NICTH) is attributable to overproduction of insulin-like growth factor-II (IGF-II) by solid tumors, and these tumors usually originate from mesenchymal or epithelial cells. Gastrointestinal stromal tumor (GIST) is a rare mesenchymal tumor and most commonly find in the gastrointestinal tract. It is usually expresses the CD117 (stem cell factor receptor, c-kit) detected by immunohistochemistry. Hypoglycemia associated with GIST is very rare and this has not yet been reported in Korea. A 72-year-old man was hospitalized due to frequent episodes of confusion. It was observed that non-hyperinsulinemic hypoglycemia, an elevated serum IGF-II level and a huge liver mass. The histology of liver mass showed c-kit (CD117) positivity, which was consistent with GIST, but it was surgically unresectable. He was treated with imatinib mesylate. Although he recieved palliative treatment, he still experienced intermittent fasting hypoglycemia. After 2 months, the serum IGF-II level was even higher than before. We changed imatinib mesylate to sunitinib malate and performed radiotherapy on the liver mass. Although the change of the liver mass was not significant, he did not suffer from hypoglycemia for three months afterwards.
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A Case of Subsequent Papillary Carcinoma of the Thyroid gland and Hashimoto's Thyroiditis.
Sang Woong Han, Yong Seon So, Seok Hwan Kim, Ki Hyun Kwon, Tae Hyeung Kim, Jong Soon Kim, Kwang Hoe Kim, Byung Doo Lee
J Korean Endocr Soc. 1996;11(2):214-220.   Published online November 7, 2019
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AbstractAbstract PDF
The association of thyroid carcinoma and Hashimotos thyroiditis in same thyroid gland is controversial. Incidence of carcinoma who has Hashimotos thyroiditis has been reported from 0.5 to 22.5 per cent by Crile and by Hirabayashi et al. The reason that there are such great diffarences in the reported incidences of carcinoma in Hashimotos disease is the result of the way the material is reported. The carcinomas of the thyroid which occur in association with Hashirnotos thyroiditis are predominently papillary tumors of lower grade malignancy. Thyroid carcinoma need not be feared in patimts with Hashimotos thymiditis, if one examines the ghmd catefully. When patients with Hashimotos disease are treated with thyroxine, there is little or no tendency for Hashimotos disease propess to clinieally detectable carcinoma of the thymid, and the microcarcinoma does not appear. In this case, single thyroid nodule was detected in Hashiimotos disease patient who was treated with thyroxine. There was no significant volume change of thyroid nodule despite of TSH suppression therapy during six months. Therefore we perforrned FNABC twice, the results were highly suspicious thyroid malignancy and subtotoal thyroidectomy was performed. The final pathologic result was microscopic papillary carcinoma with background Hashlmotos thyroiditis. In conclusion, we experienced a case of subsequent microscopic papillary carcinoma of the thyroid in patient with Hashimotos thyroiditis who was TSH suppression therapy with thyroxine.
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