Jan-Show Chu

Jan-Show Chu


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

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

Representative Publications

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7 October 2004 in Pathology International
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Journal Article
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WCWei‐Yu Chen
Wei‐Yu Chen
CCChing‐Shyang Chen
Ching‐Shyang Chen
HCHsin‐Chi Chen
Hsin‐Chi Chen
YHYi‐Ju Hung
Yi‐Ju Hung
JCJan-Show Chu
Jan-Show Chu

30 December 2011 in Diagnostic Pathology
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Journal Article
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YKYu-Chien Kao
Yu-Chien Kao
JCJyh-Ming Chow
Jyh-Ming Chow
KWKum-Min Wang
Kum-Min Wang
CFChia-Lang Fang
Chia-Lang Fang
JCJan-Show Chu
Jan-Show Chu
Chi-Long ChenChi-Long Chen
Chi-Long Chen
Primary pleural angiosarcoma is a rare and clinically aggressive tumor. Patients usually present with chest pain, dyspnea, hemoptysis and/or cough. Radiologic studies reveal diffuse pleural thickening and pleural effusion with or without mass lesion. The clinical and radiological features both resemble those of mesothelioma, and its definite diagnosis requires careful histologic examination. However, frequent epithelioid feature and immunoreactivity to cytokeratin in primary pleural angiosarcoma further complicate the pathologic diagnosis. The use of proper immunohistochemical stains is often needed to support endothelial differentiation in the tumor cells and to exclude metastatic carcinoma and mesothelioma. We report the case of a 49-year-old male patient with primary pleural angiosarcoma, who presented with initial hemothorax, followed by a rapid progress to an inoperable status. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1059343251633446

3 August 2016 in Diagnostic Pathology
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Journal Article
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PLPhui-Ly Liew
Phui-Ly Liew
CFChih-Yeu Fang
Chih-Yeu Fang
YLYu-Chieh Lee
Yu-Chieh Lee
Yi Chih LeeYi Chih Lee
Yi Chih Lee
Chi-Long ChenChi-Long Chen
Chi-Long Chen
JCJan-Show Chu
Jan-Show Chu
Increased expression of DEF6 is correlated with the malignant behavior of various cancers. Both DEF6 and p16 contribute to the regulation of cell cycle progression, and p53 plays important role in the cell cycle checkpoints. This study was designed to elucidate the prognostic significance of DEF6, p53 and p16 immunoexpressions in different histology subtypes of ovarian carcinoma. Immunohistochemistry results of DEF6, p53 and p16 on ovarian carcinoma were compared with histology subtypes, clinical data, overall survival (OS) and disease-free survival (DFS) by Cox regression and Kaplan-Meier analysis. We studied 180 cases of ovarian carcinomas (75 high-grade serous, 41 clear cell, 36 mucinous and 28 endometrioid), including 109 FIGO stage I-II cases and 71 FIGO stage III-IV cases. Ovarian carcinomas positive for both DEF6 and p16 expression were associated with the worst OS (P = 0.027) and DFS (P = 0.023), whereas those negative for both DEF6 and p16 had the best OS and DFS. Aberrant p53 expression combined with positive DEF6 was associated with worst OS (P = 0.031) and DFS (P = 0.028). Kaplan-Meier analysis showed that significantly shorter survival rates were seen in patients with high expressions of DEF6 (P = 0.008) and p16 (P = 0.022). Patients with aberrant p53 expression in high-grade serous carcinoma (P = 0.012) and patients with high DEF6 expression in clear cell carcinoma (P = 0.001) were also associated with shorter overall survival. In univariate analysis, FIGO stage, DEF6 and p16 were associated with poor prognosis. DEF6 expression was the only independent prognostic factor correlated with shorted OS (HR 2.115; P = 0.025) and DFS (HR 2.248; P = 0.016) upon multivariate analysis. DEF6 expression may serve as an independent prognostic factor, and interacted positively with p16 toward high tumor stage and shorter survival.

27 July 2019 in BMC Surgery
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CKChih-Yu Kuo
Chih-Yu Kuo
SLShing-Huey Lin
Shing-Huey Lin
KLKuan-Der Lee
Kuan-Der Lee
SCSho-Jen Cheng
Sho-Jen Cheng
JCJan-Show Chu
Jan-Show Chu
STShih-Hsin Tu
Shih-Hsin Tu
A giant phyllodes tumor of the breast is a rare fibroepithelial lesion, and its treatment is controversial. Many case reports have reported performing skin graft reconstruction after tumor excision. Chest wall resection may be required if the tumor has invaded the chest muscle layer. We speculated that transcatheter arterial chemoembolization (TACE) can improve the resectability of malignant phyllodes tumor of the breast without requiring skin grafting. The English literature contains only one case report similar to our experience. We report a rare case of a 51-year-old woman who had a giant malignant phyllodes tumor with heterologous sarcomatous differentiation in her right breast. The tumor was 19.43 × 12.98 × 21.47 cm. Whole-body computed tomography (CT) and bone scan did not reveal distant metastasis. Chest magnetic resonance imaging showed chest wall tumor invasion. Considering that skin defects after mastectomy can be extensive, we administered four courses of chemoembolization in the 5 weeks before surgery (30 mg of epirubicin and embozene microspheres [400, 500, and 700 μm]/week). Each process was well tolerated, with no serious complications. Only fever and local pain at the tumor site were noted, and these symptoms resolved with time. The follow-up CT scan showed a 45% reduction in tumor volume. Therefore, simple mastectomy was performed without skin grafting reconstruction. Wound healing was satisfactory, and the patient was discharged 1 week after surgery. Pathological and immunohistochemistry (IHC) findings showed a malignant phyllodes tumor with an angiosarcoma component. Because of tumor invasion of the chest wall, we recommended the patient receive radiotherapy, but she refused. Two months after surgery, recurrence of the malignant phyllodes tumor with right axillary lymph node involvement and lung metastasis was confirmed. Initial surgical resection of giant phyllodes tumors is often challenging. For initial presentation with unresectable giant phyllodes tumor, we recommend to perform TACE prior to surgery. In our patient, preoperative TACE was effective and safe. If the tumor has invaded the chest wall, early radiotherapy after surgery may be recommended for preventing recurrence.

13 February 2017 in BMC Nephrology
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Journal Article
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CCChih-Wei Chen
Chih-Wei Chen
JCJan-Show Chu
Jan-Show Chu
KHKevin Li-Chun Hsieh
Kevin Li-Chun Hsieh
CKChih-Chin Kao
Chih-Chin Kao
YLYen-Chung Lin
Yen-Chung Lin
HCHsi-HSien Chen
Hsi-HSien Chen
Goblet cell carcinoid is a rare variant of appendiceal carcinoid with mixed endocrine and exocrine features. The most common symptom and signs are abdominal pain, acute appendicitis and palpable mass. Additionally, abdominal pain is common in patient on peritoneal dialysis, which may confound the diagnosis in such patient. We report a 71- years- old woman on peritoneal dialysis that experienced several episodes of abdominal cramping pain and sterile peritonitis. She had one episode of severe pain and underwent an appendectomy for suspicion of appendicitis. Goblet cell carcinoid was diagnosed. She had no further abdominal pain after she received appendectomy. Malignant dialysate was rarely reported in patient with peritoneal dialysis. However, goblet cell carcinoid can initially present with acute appendicitis, chronic intermittent abdominal pain and mimicking peritonitis. In systemically reviewing the literature, this is the first case report of sterile peritonitis with peritoneal dialysis caused by goblet cell carcinoid.

20 April 2022 in BMC Medical Education
Verified
Journal Article
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JWJeng-Cheng Wu
Jeng-Cheng Wu
KTKung-Pei Tang
Kung-Pei Tang
YHYi-Hsin Elsa Hsu
Yi-Hsin Elsa Hsu
YYYa-Ting Yang
Ya-Ting Yang
JCJan-Show Chu
Jan-Show Chu
WHWen-Hsuan Hou
Wen-Hsuan Hou
In 2013, Taiwan launched a curriculum reform—the 7-year undergraduate medical education program was shortened to 6 years. This study explored the evaluation results from students regarding the curriculum reform and investigated graduates’ perceptions regarding the curriculum organization of the two academic training programs affected by this curricular reform. A cross-sectional survey was conducted from May 14 to June 12, 2019. The 315 graduates from both the 7-year and 6-year curriculum programs in the same medical school in Taipei were invited to participate in this study. In total, 197 completed questionnaires were received, representing a response rate of 62.5%. The results of the principal component analysis confirmed the validity of the constructs employed in this self-administered questionnaire. The t-test results yielded two main findings. First, the graduates from the 6-year program had significantly lower scores for preparedness for the upcoming postgraduate-year residency training than did their 7-year program counterparts. Additionally, the male graduates had significantly higher scores in terms of perceptions regarding curriculum organization and preparedness for postgraduate-year residency training than the female graduates. The results of stepwise regression also indicated that the sex difference was significantly correlated with graduates’ readiness for their postgraduate-year residency training. To avoid sex disparities in career development, a further investigation of female medical students’ learning environment and conditions is necessary. In addition to the cross-sectional study of students’ perceptions, further repeated measurements of the objective academic or clinical performance of graduates in clinical settings are desirable.