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표주연,신숙 한국동물분류학회 2011 Animal Systematics, Evolution and Diversity Vol.27 No.2
Tunicates were collected from three harbors (Gampo, Bangeojin, Daebyeon) in Gyeongsangnam-do and one harbor (Seogwipo) in Jejudo Island during the period from August 2008 to January 2011 and were identified on the basis of their morphological characteristics. Among them, colonial tunicate Clavelina lepadiformis (Müller, 1776) belonging to the family Clavelinidae was found to be an invasive alien species introduced from the North Atlantic, and this is the first record of its occurrence in Korea.
표주연,노재윤,전순호 대한흉부외과학회 2013 Journal of Chest Surgery (J Chest Surg) Vol.46 No.6
Nonossifying fibromas are not uncommon, but those described in the rib are unique. We report the case of a 15-year-old patient with symptoms of chest wall pain for 5 days who underwent a video-assisted thoracoscopic rib resection for a 2.5-cm rib mass. Unexpectedly, pathological results revealed a nonossifying fibroma of the rib. The results showed excellent cosmesis and new bone formation because of the preservation of the overlying periosteum.
자궁목암종에서 Hypoxia Inducible Factor-1α의 발현과 Cyclin A1, Cyclin B1 발현 및 임상병리학적 인자들과의 연관성
표주연,조재호,김영태,조남훈,김현기,박종필 대한병리학회 2009 Journal of Pathology and Translational Medicine Vol.43 No.1
Background : Hypoxia inducible factor-1α(HIF-1α) is a transcription factor for various target genes that are involved in adapting cells to hypoxia. It promotes cell proliferation and survival via modulation of such cell cycle regulators such as cyclin A1 and cyclin B1 in response to hypoxia. This is associated with local failure of radiotherapy, which renders a poor prognosis for cervical carcinoma. Methods : Using the tissue histologic sections and a tissue microarray of the archived biopsy and surgical specimens of uterine cervical carcinoma from 57 patients who were treated with radiation therapy alone, we performed immunohistochemical staining for HIF-1αand cyclin A1 and B1 to evaluate the correlations between the expressions of these proteins in tumors and the clinicopathologic parameters associated with the prognosis. Results : The large tumor cell nests and invasive front margins of the tumors showed comparatively intense immunoreactivity of HIF-1α. There was no significant correlation between the HIF-1α, cyclin A1 and cyclin B1 expressions and the clinicopathologic factors. Conclusions : The HIF-1αexpression showed marked intra-tumoral heterogeneity. The HIF-1αexpression is neither a powerful predictor of resistance to radiotherapy nor is it a poor prognostic marker in cervical carcinoma patients who are treated with radiotherapy. The expressions of cyclin A1 and cyclin B1 are neither independently associated with the response of radiation therapy nor are they associated with the prognostic parameters of uterine cervical carcinoma.
표주연,홍순원,김지섭,최성은,신은아,양석우,박정수,김석모 연세대학교의과대학 2017 Yonsei medical journal Vol.58 No.1
We describe herein histologic, immunohistochemical, and molecular findings and clinical manifestations of a rare case of an extremelywell differentiated papillary thyroid carcinoma (EWD-PTC). Similarly, it is also difficult to diagnose follicular variant papillarythyroid carcinoma (FVPTC), whose diagnosis is still met with controversy. A recently reported entity of well-differentiated tumor of uncertain malignant potential (WDT-UMP) is added to the diagnostic spectrum harboring EWD-PTC and FVPTC. We reportthis case, because EWD-PTC is different from FVPTC in its papillary architecture, and also from WDT-UMP in its recurrence and metastatic pattern. These morphologically deceptive entities harbored diagnostic difficulties in the past because the diagnosisdepended solely on histology. However, they are now diagnosed with more certainty by virtue of immunohistochemical and molecularstudies. We experienced a case of EWD-PTC, which had been diagnosed as adenomatous hyperplasia 20 years ago and manifested recurrence with lymph node (LN) metastasis 7 years later. After another 7 years of follow-up, a new thyroid lesion had developed, diagnosed as FVPTC, with LN metastasis of EWD-PTC. One year later, the patient developed metastatic FVPTC in the skull. Immunohistochemically, the EWD-PTC was focally positive for CK19, negative for galectin-3, and focally negative for CD56. Molecular studies revealed BRAF-positivity and K-RAS negativity. The FVPTC in the left thyroid showed both BRAF and K-RAS negativity. In conclusion, EWD-PTC and FVPTC share similar histologic features, but they are different tumors with different molecularbiologic and clinical manifestations. A large cohort of EWD-PTC should be included in further study.
표주연,홍순원,최성은,신은아,구자승 대한병리학회 2017 Journal of Pathology and Translational Medicine Vol.51 No.5
Background: When differential diagnosis is difficult in thyroid follicular lesions with overlapping histological features, the immunohistochemical staining can help confirm the diagnosis. We aimed to evaluate the effectiveness of rapid immunohistochemical stains of CD56 and cytokeratin 19 on frozen sections of thyroid follicular lesion and explore the possible gains and limitations of the practice. Methods: Eighty-six nodules of 79 patients whose intraoperative frozen sections were selected as the control group, and 53 nodules of 48 patients whose intraoperative frozen sections were subject to rapid immunohistochemistry were selected as the study group. Results: Five nodules (6%) in the control group were diagnosed as follicular neoplasm and six nodules (7%) were deferred. In the study group, six nodules (11%) were follicular neoplasm and none were deferred. Three nodules (4%) in the control group showed diagnostic discrepancy between the frozen and permanent diagnoses, but none in the study group. The average turnaround time for the frozen diagnosis of the control group was 24 minutes, whereas it was 54 minutes for the study group. Conclusions: Intraoperative rapid immunohistochemical stains significantly decreased the diagnostic discrepancy in this study. Considering the adverse effects of indefinite frozen diagnosis or discrepancy with permanent diagnoses, the intraoperative rapid immunohistochemical stain can help to accurately diagnose and hence provide guidance to surgical treatment.
아급성 육아종성 갑상샘염의 세침흡인 세포소견 -아급성 육아종성 갑상샘염 10예의 임상-세포소견 및 면역세포염색 소견 분석-
김도경,표주연,박종필,김연화,정우희,손은주,홍순원,Kim, Do-Kyung,Pyo, Ju-Yeon,Park, Jong-Pil,Jin, Lian-Hua,Jeong, Woo-Hee,Son, Eun-Ju,Hong, Soon-Won The Korean Society for Cytopathology 2008 대한세포병리학회지 Vol.19 No.1
Although subacute granulomatous thyroiditis(SGT) is usually diagnosed clinically, papillary carcinoma or other thyroid conditions must be considered in the differential diagnosis. We retrospectively reviewed the clinical and fine-needle aspiration(FNA) cytologic findings seen in 10 SGT cases to decide what are the most reliable cytologic findings and the most helpful molecular tools for reaching a confident cytologic diagnosis. The most representative smear slides were retrieved to perform immunocytochemistry for cytokeratin 19(CK19) and Ret protein. Five papillary carcinomas(PTCs) were included as controls. The constant and typical cytologic findings of SGT were multinucleated giant cells(MGCs) (100%), epithelioid granulomas(90%), an inflammatory dirty background(90%) and plump transformed follicular cells(80%) without fire-flare cells, oncocytic cells or transformed lymphocytes. The immunoreactivities for CK19(37.5%) and Ret(10%) of the follicular cells of SGT were less than those(CK19 and Ret:100%) of PTC. CK19 immunoreactivity of the MGCs was seen in only one case of PTC. There was no significant difference between CK19 and Ret immunocytochemical staining for the MGCs of both SGT and PTC. The results of this study demonstrate that the cytological diagnosis of SGT can be improved by employing a combination of the typical and constant diagnostic cytological features and immunocytochemical results.
부위별 변형 얼굴 재인 과제에서 안구 움직임 탐색 연구
함근수,표주연,유성호,권지혜 대한법의학회 2015 대한법의학회지 Vol.39 No.4
We evaluated the effects of eye movements on facial feature recognition and memory retrieval. Thirty-eight participants learned the faces of five men, including features of the faces (eyes, nose, and mouth), and then performed a recognition memory task for partially manipulated versions of the faces. Bilateral eye movements, recognition accuracy, and mean fixation duration were evaluated. We observed differences in fixation durations for the manipulated features of the faces (eyes, F(3,78)=11.95, P<0.001; and mouth, F(3,78)=21.38, P<0.001). These findings demonstrate that eye movements have a functional role in learning and recognizing human faces. Furthermore, fixation durations increased for the manipulated facial features, suggesting that eye movements during recognition are not simply patterns produced during learning.