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이은신,이혜경<SUP>1<,SUP>,홍성우,이우용,장여구,백인욱,이혁상,Eun Sin Lee,Hye Kyung Lee,<SUP>1<,SUP>,Seong Woo Hong,Woo Yong Lee,Yeo Goo Chang,In Wook Paik and Hyucksang Lee 대한갑상선-내분비외과학회 2009 The Koreran journal of Endocrine Surgery Vol.9 No.4
The majority of cystic masses in the lateral neck are benign entities, and these entities include branchial cyst. Occult papillary thyroid carcinoma can occasionally present with regional lymph node metastasis. However, cystic metastasis from occult papillary thyroid carcinoma is a very rare condition. We present here a case of a cystic neck mass as the sole initial clinical manifestation of metastatic occult papillary thyroid carcionoma. (Korean J Endocrine Surg 2009;9:228-231)
간세포암에서 Vimentin과 MMP2 발현의 임상적 의의
이은신(Eun Sin Lee),홍성우(Seong Woo Hong),강윤경(Yun Kyung Kang),이우용(Woo Yong Lee),장여구(Yeo Goo Chang),백인욱(In Wook Paik),이혁상(Hyucksang Lee) 한국간담췌외과학회 2009 한국간담췌외과학회지 Vol.13 No.2
Background / Purpose: Hepatocellular carcinoma (HCC) is a common cancer with a poor prognosis. A better understanding of the molecular mechanisms underlying the genesis of HCC, as well as the progression of HCC, allow for improved prediction of the prognosis of patients with HCC and more effective treatment. In this study, we determined the expression of vimentin and matrix metalloproteinase 2 (MMP 2) and evaluated the clinical significance in (HCC). Methods: Immunohistochemical staining was performed for vimentin and MMP 2 in 98 surgically resected HCC specimens using the tissue microarray method. The clinicopathologic data and the outcomes were reviewed, and the levels of expression of vimentin and MMP 2 were compared. Results: Positive expression of vimentin and MMP 2 was observed in 7.1% and 41.8% of specimens, respectively. The overexpression of vimentin and MMP 2 had a positive correlation with tumor cell proliferative activity, as measured by the Ki-67 labeling index (p<0.001 and p=0.043, respectively), but was not correlated with the TUNEL labeling index. Other clinicopathological factors, such as platelet count, serosal invasion, Edomondson grade, capsule infiltration, TNM stage(UICC, 6th edition) and extrahepatic metastases in patients with recurrences had a significant correlation with vimentin. The presence of portal vein thrombosis approached statistical significance with MMP 2 expression. In the survival analysis, overexpression of vimentin and MMP 2 was correlated with a poor overall survival rate based on univariate analysis (p=0.002 and, p=0.047, respectively), but not based on multivariate analysis. Conclusion: In HCC, vimentin and MMP 2 may have a role in cancer progression with more aggressive potential, thus suggesting their use as a prognostic markers in HCC.
Thigh에 발생한 Malignant Solitary Fibrous Tumor
서지영(Ji Young Seo),이은신(Eun Sin Lee),이혁상(Hyucksang Lee),장여구(Yeo Goo Chang),이우용(Woo Young Lee),이혜경(Hye-kyung Lee),홍성우(Seong Wo Hong) 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.6
A solitary fibrous tumor (STF) is a relatively unusual neoplasm first described as a distinctive tumor arising from pleura. Some reports have shown that STF also affect extrathoracic regions. A 70-year-old woman was referred to our hospital for surgical treatment of an incidentally discovered thigh mass. We performed complete removal of the tumor. It was a soft tissue tumor with muscle indentation but without invasion to the surrounding muscles. The resected specimen was 7.0×6.3×5.2 ㎝. Histologically, the tumor was composed of a haphazard proliferation of spindle cells and epitheloid cells with hypercellularity and high mitotic activity. Immunohistochemistry showed positive immunoreactivity for CD34, CD99, bcl-2 protein, CD117, vimentin, smooth muscle actin and epithelial membrane antigen. We report, herein, on a rare case of malignant SFT in the thigh region along with a review of the literature.