Kyu Chan Lee

Prof. Dr. Kyu Chan Lee


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 November 2018 in Gynecologic Oncology
Verified
Journal Article
Closed access
HKHyun Ju Kim
Hyun Ju Kim
JCJeesuk Chang
Jeesuk Chang
WKWoong Sub Koom
Woong Sub Koom
KLKyu Chan Lee
Kyu Chan Lee
GKGwi Eon Kim
Gwi Eon Kim
YKYong bae Kim
Yong bae Kim

17 May 2016 in SpringerPlus
Verified
Journal Article
Open access
PDF file
YJYoungwoo Jang
Youngwoo Jang
JKJoonhwan Kim
Joonhwan Kim
JSJung Woo Shim
Jung Woo Shim
EKEun Young Kim
Eun Young Kim
JMJungkeun Moon
Jungkeun Moon
HAHee Kyung Ahn
Hee Kyung Ahn
Primary cardiac cancer is a very rare disease, among which primary cardiac angiosarcoma is one of the most frequent type and is characterized by extremely poor prognosis without established optimal treatment. Here we report a case of primary cardiac angiosarcoma with hemorrhagic pericardial effusion who achieved a durable response with tumor excision followed by concurrent chemoradiotherapy with docetaxel. A sixty year old man was presented with dyspnea and was diagnosed with primary cardiac angiosarcoma with hemorrhagic pericardial effusion. After surgical excision of primary tumor with microscopic residual disease followed by concurrent chemoradiotherapy with docetaxel, the patient showed durable response of progression free survival of 12 months. This case shows benefit of concurrent chemoradiotherapy with taxane. Further investigation of aggressive multimodal treatment strategy is warranted for primary cardiac angiosarcoma with pauci-metastasis even when achievement of complete resection seems unlikely.

1 January 2012 in Radiation Oncology Journal
Verified
Journal Article
Open access
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SLSeung Heon Lee
Seung Heon Lee
KLKyu Chan Lee
Kyu Chan Lee
JCJinho Choi
Jinho Choi
HKHye Young Kim
Hye Young Kim
SLSeok Ho Lee
Seok Ho Lee
YKYunmi Kim
Yunmi Kim
Lee SH, et al. Radiat Oncol J. 2012 Jun;30(2):53-61. http://dx.doi.org/10.3857/roj.2012.30.2.53

15 March 2019 in Journal of Pathology and Translational Medicine
Verified
Journal Article
Open access
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MKMyunghee Kang
Myunghee Kang
DCDong Hae Chung
Dong Hae Chung
NKNa Rae Kim
Na Rae Kim
HCHyun Yee Cho
Hyun Yee Cho
SHSeung Yeon Ha
Seung Yeon Ha
KLKyu Chan Lee
Kyu Chan Lee
Background: Pathologic diagnosis of central nervous system (CNS) neoplasms is made by comparing light microscopic, immunohistochemical, and molecular cytogenetic findings with clinicoradiologic observations. Intraoperative frozen cytology smears can improve the diagnostic accuracy for CNS neoplasms. Here, we evaluate the diagnostic value of cytology in frozen diagnoses of CNS neoplasms. Methods: Cases were selected from patients undergoing both frozen cytology and frozen sections. Diagnostic accuracy was evaluated. Results: Four hundred and fifty-four cases were included in this retrospective single-center review study covering a span of 10 years. Five discrepant cases (1.1%) were found after excluding 53 deferred cases (31 cases of tentative diagnosis, 22 cases of inadequate frozen sampling). A total of 346 cases of complete concordance and 50 cases of partial concordance were classified as not discordant cases in the present study. Diagnostic accuracy of intraoperative frozen diagnosis was 87.2%, and the accuracy was 98.8% after excluding deferred cases. Discrepancies between frozen and permanent diagnoses (n = 5, 1.1%) were found in cases of nonrepresentative sampling (n = 2) and misinterpretation (n = 3). High concordance was observed more frequently in meningeal tumors (97/98, 99%), metastatic brain tumors (51/52, 98.1%), pituitary adenomas (86/89, 96.6%), schwannomas (45/47, 95.8%), high-grade astrocytic tumors (47/58, 81%), low grade astrocytic tumors (10/13, 76.9%), non-neoplastic lesions (23/36, 63.9%), in decreasing frequency. Conclusions: Using intraoperative cytology and frozen sections of CNS tumors is a highly accurate diagnostic ancillary method, providing subtyping of CNS neoplasms, especially in frequently encountered entities.

1 February 2008 in Japanese Journal of Clinical Oncology
Verified
Journal Article
Open access
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SLSeok Ho Lee
Seok Ho Lee
KLKyu Chan Lee
Kyu Chan Lee
JCJin Ho Choi
Jin Ho Choi
JOJae Hwan Oh
Jae Hwan Oh
JBJeong-Heum Baek
Jeong-Heum Baek
DSDong Bok Shin
Dong Bok Shin
Background To determine complete resection and sphincter preservation rates, down-staging, local control and survival associated with concurrent chemoradiotherapy (CCRT) using a moderately high pelvic radiation dose before surgery in rectal cancer. Methods Fifty-seven patients with histologically proven adenocarcinoma of the mid to lower rectum were treated using preoperative CCRT and surgery. Median radiation dose to the pelvis was 5400 cGy (5040–5580 cGy). CCRT was administered during the first and fifth weeks of radiotherapy with bolus intravenous 5-fluorouracil (5-FU) 400 mg/m2/day and leucovorin (LV) 20 mg/m2/day for 5 days. Surgery was attempted 4–8 weeks after completing preoperative CCRT. Post-operative chemotherapy was then added for up to four cycles of intravenous 5-FU and LV. Results Toxicities during CCRT were generally mild and manageable: Grade 1/2 anemia, 3.5%; Grade 1/2 leukopenia, 45.6%; Grade 3 leukopenia, 3.5%; Grade 1/2 diarrhea, 22.8%; Grade 1/2 abdominal discomfort, 7%; and perianal skin reaction, 5.3%. No late complication requiring surgical intervention occurred. Complete surgical resection with a negative resection margin was achieved in 98.2% of patients, and the down-staging rate was 52.6% (30/57; 95% CI 39.6–65.6%). Complete pathologic response was obtained in 5.3% patients (3/57; 95% CI 0-11.1%) and in other 2 patients only sporadic tumor cells nests were noted in surgical specimens. The sphincter preservation rate was 77.2% (44/57; 95% CI 66.3–88.1%). Of 30 patients with tumors located within 5 cm from the anal verge, sphincter preservation was possible in 18 patients (60.0%; 95% CI 47.3–72.7%). With a median follow-up duration of 40 months, overall and disease-free survival (DFS) rates over 3 years were 91.8% (95% CI 85.5–98.2%) and 79.7% (95% CI 71.2–88.2%), respectively. At univariate analysis, significant factors for DFS was LN involvement status (P = 0.024). Local and distant failure rates over the same period were 5.3 and 21.1%, respectively. Conclusions Preoperative CCRT produced encouraging down-staging rates and was found to facilitate complete resection and sphincter saving in distal rectal cancer with acceptable toxicity. Further studies are warranted using this moderately high radiation dose to the pelvis to improve the local control.

1 January 2012 in Journal of Gynecologic Oncology
Verified
Journal Article
Open access
PDF file
SLSeok Ho Lee
Seok Ho Lee
SLSeung Heon Lee
Seung Heon Lee
KLKyu Chan Lee
Kyu Chan Lee
KLKwang Beom Lee
Kwang Beom Lee
JSJin Woo Shin
Jin Woo Shin
JLJun-Ho Lee
Jun-Ho Lee
Lee SH, et al. J Gynecol Oncol. 2012 Jul;23(3):159-167. http://dx.doi.org/10.3802/jgo.2012.23.3.159