Journal of Yeungnam Medical Science

Original article

Diagnostic performance of F-18 FDG PET or PET/CT for detection of recurrent gastric cancer: a systematic review and meta-analysis: Chang In Choi, Jae Kyun Park, Tae Yong Jeon, Dae-Hwan Kim; J Yeungnam Med Sci. 2023;40(Suppl):S37-S46. Published online August 17, 2023; DOI: https://doi.org/10.12701/jyms.2023.00220

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Abstract PDF: Background
This systematic review and meta-analysis investigated the diagnostic performance of F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) or PET/computed tomography (PET/CT) for the detection of disease recurrence after curative resection of gastric cancer.
Methods
The PubMed and Embase databases, from the earliest available date of indexing through November 30, 2019, were searched for studies evaluating the diagnostic performance of F-18 FDG PET or PET/CT to detect recurrent disease after gastric cancer surgery.
Results
Across 17 studies (1,732 patients), the pooled sensitivity for F-18 FDG PET or PET/CT was 0.82 (95% confidence interval [CI], 0.74–0.88) with heterogeneity of I2=76.5 (p<0.001), and the specificity was 0.86 (95% CI, 0.78–0.91) with heterogeneity of I2=94.2 (p<0.001). Likelihood ratio (LR) tests gave an overall positive LR of 6.0 (95% CI, 3.6–9.7) and negative LR of 0.2 (95% CI, 0.14–0.31). The pooled diagnostic odds ratio was 29 (95% CI, 13–63). The summary receiver operating characteristic curve indicates that the area under the curve was 0.91 (95% CI, 0.88–0.93).
Conclusion
The current meta-analysis showed good sensitivity and specificity of F-18 FDG PET or PET/CT for detecting recurrent disease after curative resection of gastric cancer despite heterogeneity in ethnicity, recurrence rate, histology, and interpretation method.

Review articles

Breakthrough pain and rapid-onset opioids in patients with cancer pain: a narrative review: Jinseok Yeo; J Yeungnam Med Sci. 2024;41(1):22-29. Published online June 30, 2023; DOI: https://doi.org/10.12701/jyms.2023.00367

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Abstract PDF: Breakthrough pain is transitory pain that occurs despite the use of opioids for background pain control. Breakthrough pain occurs in 40% to 80% of patients with cancer pain. Despite effective analgesic therapy, patients and their caregivers often feel that their pain is not sufficiently controlled. Therefore, an improved understanding of breakthrough pain and its management is essential for all physicians caring for patients with cancer. This article reviews the definition, clinical manifestations, accurate diagnostic strategies, and optimal treatment options for breakthrough pain in patients with cancer. This review focuses on the efficacy and safety of rapid-onset opioids, which are the primary rescue drugs for breakthrough pain.

Role of gene therapy in treatment of cancer with craniofacial regeneration—current molecular strategies, future perspectives, and challenges: a narrative review: Himanshu Singh; J Yeungnam Med Sci. 2024;41(1):13-21. Published online May 23, 2023; DOI: https://doi.org/10.12701/jyms.2023.00073

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Abstract PDF: Gene therapy involves the introduction of foreign genetic material into host tissue to alter the expression of genetic products. Gene therapy represents an opportunity to alter the course of various diseases. Hence, genetic products utilizing safe and reliable vectors with improved biotechnology will play a critical role in the treatment of various diseases in the future. This review summarizes various important vectors for gene therapy along with modern techniques for potential craniofacial regeneration using gene therapy. This review also explains current molecular approaches for the management and treatment of cancer using gene therapy. The existing literature was searched to find studies related to gene therapy and its role in craniofacial regeneration and cancer treatment. Various databases such as PubMed, Science Direct, Scopus, Web of Science, and Google Scholar were searched for English language articles using the keywords “gene therapy,” “gene therapy in present scenario,” “gene therapy in cancer,” “gene therapy and vector,” “gene therapy in diseases,” and “gene therapy and molecular strategies.”

Case report

Intraabdominal abscess mimicking gastric cancer recurrence: a case report: Yong-Eun Park; J Yeungnam Med Sci. 2023;40(4):426-429. Published online February 1, 2023; DOI: https://doi.org/10.12701/jyms.2022.00864

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Abstract PDF: Surgical site infection is a common healthcare-associated infection that rarely occurs several months after surgery. Herein, a case is described in which an abdominal mass lesion was found at a 6-month follow-up visit after gastrectomy was performed for early gastric cancer. Positron emission tomography-computed tomography revealed a 2.5 cm-sized mass with a high maximal standard uptake value (8.32), located above a previous anastomosis site. Locoregional recurrence of gastric cancer was diagnosed by multidisciplinary team discussion, and explorative laparotomy was performed. However, surgical and pathologic findings revealed that the mass was an intraabdominal abscess. In conclusion, differential diagnosis of delayed abscess formation should be considered if the possibility of tumor recurrence is low, especially after early gastric cancer surgery.

Original articles

Clinical implication of adjuvant chemotherapy according to mismatch repair status in patients with intermediate-risk stage II colon cancer: a retrospective study: Byung Woog Kang, Dong Won Baek, Eunhye Chang, Hye Jin Kim, Su Yeon Park, Jun Seok Park, Gyu Seog Choi, Jin Ho Baek, Jong Gwang Kim; J Yeungnam Med Sci. 2022;39(2):141-149. Published online December 22, 2021; DOI: https://doi.org/10.12701/yujm.2021.01571

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Abstract PDF

Background
The present study evaluated the clinical implications of adjuvant chemotherapy according to the mismatch repair (MMR) status and clinicopathologic features of patients with intermediate- and high-risk stage II colon cancer (CC).
Methods
This study retrospectively reviewed 5,774 patients who were diagnosed with CC and underwent curative surgical resection at Kyungpook National University Chilgok Hospital. The patients were enrolled according to the following criteria: (1) pathologically diagnosed with primary CC; (2) stage II CC classified based on the 7th edition of the American Joint Committee on Cancer staging system; (3) intermediate- and high-risk features; and (4) available test results for MMR status. A total of 286 patients met these criteria and were included in the study.
Results
Among the 286 patients, 54 (18.9%) were identified as microsatellite instability-high (MSI-H) or deficient MMR (dMMR). Although all the patients identified as MSI-H/dMMR showed better survival outcomes, T4 tumors and adjuvant chemotherapy were identified as independent prognostic factors for survival. For the intermediate-risk patients identified as MSI-low (MSI-L)/microsatellite stable (MSS) or proficient MMR (pMMR), adjuvant chemotherapy exhibited a significantly better disease-free survival (DFS) but had no impact on overall survival (OS). Oxaliplatin-containing regimens showed no association with DFS or OS. Adjuvant chemotherapy was not associated with DFS in intermediate-risk patients identified as MSI-H/dMMR.
Conclusion
The current study found that the use of adjuvant chemotherapy was correlated with better DFS in MSI-L/MSS or pMMR intermediate-risk stage II CC patients.

Citations

Citations to this article as recorded by

Behavioral and Neuroanatomical Consequences of Cell-Type Specific Loss of Dopamine D2 Receptors in the Mouse Cerebral Cortex
Gloria S. Lee, Devon L. Graham, Brenda L. Noble, Taylor S. Trammell, Deirdre M. McCarthy, Lisa R. Anderson, Marcelo Rubinstein, Pradeep G. Bhide, Gregg D. Stanwood
Frontiers in Behavioral Neuroscience.2022;[Epub] CrossRef
A pilot retrospective study of comprehensive nursing care on psychological disorder in colorectal cancer undergoing chemotherapy
Zhou-Yi Zhang, Rui Wang, Li Zhang, Ming-Li Gu, Xiu-E Guan
Medicine.2022; 101(28): e29707. CrossRef

Treatment decision for cancer patients with fever during the coronavirus disease 2019 (COVID-19) pandemic: In Hee Lee, Sung Ae Koh, Soo Jung Lee, Sun Ah Lee, Yoon Young Cho, Ji Yeon Lee, Jin Young Kim; Yeungnam Univ J Med. 2021;38(4):344-349. Published online August 23, 2021; DOI: https://doi.org/10.12701/yujm.2021.01144

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Abstract PDF: Background
Cancer patients have been disproportionally affected by the coronavirus disease 2019 (COVID-19) pandemic, with high rates of severe outcomes and mortality. Fever is the most common symptom in COVID-19 patients. During the COVID-19 pandemic, physicians may have difficulty in determining the cause of fever (COVID-19, another infection, or cancer fever) in cancer patients. Furthermore, there are no specific guidelines for managing cancer patients with fever during the COVID-19 pandemic. Thus, this study evaluated the clinical characteristics and outcomes of cancer patients with fever during the COVID-19 pandemic.
Methods
This study retrospectively reviewed the medical records of 328 cancer patients with COVID-19 symptoms (fever) admitted to five hospitals in Daegu, Korea from January to October 2020. We obtained data on demographics, clinical manifestations, laboratory test results, chest computed tomography images, cancer history, cancer treatment, and outcomes of all enrolled patients from electronic medical records.
Results
The most common COVID-19-like symptoms were fever (n=256, 78%). Among 256 patients with fever, only three (1.2%) were diagnosed with COVID-19. Most patients (253, 98.8%) with fever were not diagnosed with COVID-19. The most common solid malignancies were lung cancer (65, 19.8%) and hepatobiliary cancer (61, 18.6%). Twenty patients with fever experienced a delay in receiving cancer treatment. Eighteen patients discontinued active cancer treatment because of fever. Major events during the treatment delay period included death (2.7%), cancer progression (1.5%), and major organ dysfunction (2.7%).
Conclusion
Considering that only 0.9% of patients tested for COVID-19 were positive, screening for COVID-19 in cancer patients with fever should be based on the physician’s clinical decision, and patients might not be routinely tested.

Case reports

Adrenal insufficiency development during chemotherapy plus anti-programmed death receptor-1 monoclonal antibody (tislelizumab) therapy in patients with advanced gastric cancer: two case reports: Jin Ho Baek; J Yeungnam Med Sci. 2022;39(1):62-66. Published online April 19, 2021; DOI: https://doi.org/10.12701/yujm.2021.00934

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Abstract PDF

Immune checkpoint inhibitor (ICI)-associated adrenal insufficiency is rare but may become a serious adverse event in patients treated with ICIs. The present case report documents two cases of adrenal insufficiency developed during chemotherapy plus tislelizumab (百泽安, Baize’an; BeiGene Ltd.) therapy in patients with advanced gastric cancer. Adrenal insufficiency developed after 6 and 13 cycles of treatment and was well controlled with hydrocortisone. The patients also developed hypothyroidism, which was managed with levothyroxine. Two patients showed a partial response, and one patient out of two achieved a near-complete response, sustaining over 11 months. Increased awareness of ICI-related adrenal insufficiency is crucial for early detection and prompt management of patients treated with ICIs.

Citations

Citations to this article as recorded by

Immune checkpoint inhibitor-related adrenal hypofunction and Psoriasisby induced by tislelizumab: A case report and review of literature
Yisi Deng, Manling Huang, Runpei Deng, Jun Wang
Medicine.2024; 103(12): e37562. CrossRef
Severe thyrotoxicosis induced by tislelizumab: a case report and literature review
Liman Huo, Chao Wang, Haixia Ding, Xuelian Shi, Bin Shan, Ruoying Zhou, Ping Liang, Juan Hou
Frontiers in Oncology.2023;[Epub] CrossRef
Immune-related adverse events with severe pain and ureteral expansion as the main manifestations: a case report of tislelizumab-induced ureteritis/cystitis and review of the literature
Qihao Zhou, Zhiquan Qin, Peiyuan Yan, Qunjiang Wang, Jing Qu, Yun Chen
Frontiers in Immunology.2023;[Epub] CrossRef
Isolated Renal Calyceal Urothelial Carcinoma Effectively Treated With PD-1 Inhibitor Alone: A Case Report And Literature Review
Shihao Li, Yi Zhu, Zhijian Xu, Jianjun Liu, Hongwei Liu
Frontiers in Oncology.2022;[Epub] CrossRef

Gastric cancer and adenomatous colorectal polyp concomitant with pyogenic liver abscess and bacteremia: Min Kyu Kang, Hee Jung Kwon, Min Cheol Kim; Yeungnam Univ J Med. 2020;37(3):246-249. Published online April 10, 2020; DOI: https://doi.org/10.12701/yujm.2020.00094

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Abstract PDF: Synchronous gastric cancer and adenomatous colorectal polyp in patients with Klebsiella pneumoniae-induced pyogenic liver abscess (KP-PLA) and bacteremia is a rare presentation. A 58-year-old man with a 6-month history of diabetes mellitus (DM) presented with febrile sensation and dull abdominal pain in the right upper quadrant of the abdomen. Subsequent to laboratory test results and abdominal computed tomography findings, KP-PLA with bacteremia was diagnosed. After intravenous antibiotic administration, his symptoms improved, and upper endoscopy and colonoscopy were performed to evaluate the cause of KP-PLA. Biopsy specimens of the prepyloric anterior wall revealed a moderately differentiated adenocarcinoma. Endoscopic mucosal resection of the colon revealed high-grade dysplasia. Early gastric cancer (EGC) and adenomatous colorectal polyps with high-grade dysplasia concomitant with KP-PLA and bacteremia were diagnosed in our patient who had DM. Intravenous antibiotic treatment for KP-PLA, subtotal gastrectomy for EGC, and colonoscopic mucosal resection for the colon polyp were performed. After 25 days of hospitalization, subtotal gastrectomy with adjacent lymph node dissection was performed. Follow-up ultrasound imaging showed resolution of the abscess 5 weeks post-antibiotic treatment, as well as no tumor metastasis. Upper gastrointestinal endoscopy and colonoscopy should be performed to evaluate gastric cancer in patients with PLA or bacteremia, accompanied with DM or an immunocompromised condition.

Fatal progressive right heart failure in a pancreatic cancer patient: Jeong Tae Byoun, Jae Young Cho; Yeungnam Univ J Med. 2020;37(2):122-127. Published online September 19, 2019; DOI: https://doi.org/10.12701/yujm.2019.00332

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Abstract PDF

Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare but fatal complication of cancer and causes pulmonary hypertension and acute/subacute right heart failure. PTTM is most commonly associated with gastric cancer and more rarely associated with pancreatic cancer. We report a case of progressive right heart failure associated with clinically diagnosed pancreatic cancer, suggesting PTTM.

Citations

Citations to this article as recorded by

A rare, life-threatening debut of pancreatic adenocarcinoma: Pulmonary tumor thrombotic microangiopathy
Pablo Jiménez-Labaig, Soledad Fernández Solé, Susana Gómez Varela, Jorge García Calvo, Sergio Carrera Revilla, Alberto Muñoz Llarena
Current Problems in Cancer: Case Reports.2023; 10: 100238. CrossRef
Evidence of sex differences in cancer‐related cardiac complications in mouse models of pancreatic and liver cancer
Anna Gams, Alejandro Nevarez, Stephanie Perkail, Aileen Venegas, Sharon A. George, Tatiana Efimova, Igor R. Efimov
Physiological Reports.2023;[Epub] CrossRef
Prospective of Pancreatic Cancer Diagnosis Using Cardiac Sensing
Mansunderbir Singh, Priyanka Anvekar, Bhavana Baraskar, Namratha Pallipamu, Srikanth Gadam, Akhila Sai Sree Cherukuri, Devanshi N. Damani, Kanchan Kulkarni, Shivaram P. Arunachalam
Journal of Imaging.2023; 9(8): 149. CrossRef
Fatal pulmonary tumour thrombotic microangiopathy in patient with ovarian adenocarcinoma: review and a case report
Gintare Neverauskaite-Piliponiene, Kristijonas Cesas, Darius Pranys, Skaidrius Miliauskas, Lina Padervinskiene, Jolanta Laukaitiene, Giedre Baksyte, Gintare Sakalyte, Egle Ereminiene
BMC Cardiovascular Disorders.2022;[Epub] CrossRef

Purulent pericarditis: subdiaphragmatic suppurative focus: Kang-Un Choi, Chan-Hee Lee; Yeungnam Univ J Med. 2020;37(1):63-66. Published online September 4, 2019; DOI: https://doi.org/10.12701/yujm.2019.00311

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Abstract PDF

Purulent pericarditis is defined as a localized pericardial infection with gross pus formation in the pericardial space. Although purulent pericarditis is now rare in the antibiotic era, it may be life-threatening. We describe a rare case of purulent pericarditis that originated from a subdiaphragmatic suppurative focus in an immunocompromised host.

Citations

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A Study on the Process of Posttraumatic Growth among Helping Professionals in Suicide Prevention: Focused on Grounded Theory
Sungkyu Lee, Hyeyeon Sung, Chonghee Seo
Journal of Social Science.2021; 32(3): 149. CrossRef

Original article

What are the most important prognostic factors in patients with residual rectal cancer after preoperative chemoradiotherapy?: Sol-Min Kim, Ghilsuk Yoon, An Na Seo; Yeungnam Univ J Med. 2019;36(2):124-135. Published online April 1, 2019; DOI: https://doi.org/10.12701/yujm.2019.00157

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Abstract PDF

Background
We aimed to establish robust histoprognostic predictors on residual rectal cancer after preoperative chemoradiotherapy (CRT).
Methods
Analyzing known histoprognostic factors in 146 patients with residual disease allows associations with patient outcome to be evaluated.
Results
The median follow-up time was 77.8 months, during which 59 patients (40.4%) experienced recurrence and 41 (28.1%) died of rectal cancer. On univariate analysis, residual tumor size, ypT category, ypN category, ypTNM stage, downstage, tumor regression grade, lymphatic invasion, perineural invasion, venous invasion, and circumferential resection margin (CRM) were significantly associated with recurrence free survival (RFS) or/and cancer-specific survival (CSS) (all p<0.005). On multivariate analysis, higher ypTNM stage and CRM positivity were identified as independent prognostic factors for RFS (ypTNM stage, p=0.024; CRM positivity, p<0.001) and CSS (p=0.022, p=0.017, respectively). Furthermore, CRM positivity was an independent predictor of reduced RFS, irrespective of subgrouping according to downstage (non-downstage, p=0.001; downstage, p=0.010) or lymph node metastasis (non-metastasis, p=0.004; metastasis, p=0.007).
Conclusion
CRM status may be as powerful as ypTNM stage as a prognostic indicator for patient outcome in patients with residual rectal cancer after preoperative CRT.

Citations

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Poor nutrition and sarcopenia are related to systemic inflammatory response in patients with rectal cancer undergoing preoperative chemoradiotherapy
Shinya Abe, Hiroaki Nozawa, Kazushige Kawai, Kazuhito Sasaki, Koji Murono, Shigenobu Emoto, Junko Kishikawa, Tsuyoshi Ozawa, Yuichiro Yokoyama, Yuzo Nagai, Hiroyuki Anzai, Hirofumi Sonoda, Soichiro Ishihara
International Journal of Colorectal Disease.2022; 37(1): 189. CrossRef
Preoperative sarcopenia is a poor prognostic factor in lower rectal cancer patients undergoing neoadjuvant chemoradiotherapy: a retrospective study
Shinya Abe, Kazushige Kawai, Hiroaki Nozawa, Kazuhito Sasaki, Koji Murono, Shigenobu Emoto, Junko Kishikawa, Hiroaki Ishii, Yuichiro Yokoyama, Yuzo Nagai, Hiroyuki Anzai, Hirofumi Sonoda, Koji Oba, Soichiro Ishihara
International Journal of Clinical Oncology.2022; 27(1): 141. CrossRef
A Four-Methylated lncRNAs-Based Prognostic Signature for Hepatocellular Carcinoma
Le-En Liao, Dan-Dan Hu, Yun Zheng
Genes.2020; 11(8): 908. CrossRef

Original Article

Oncological and functional outcomes following robot-assisted laparoscopic radical prostatectomy at a single institution: a minimum 5-year follow-up: Jun-Koo Kang, Jae-Wook Chung, So Young Chun, Yun-Sok Ha, Seock Hwan Choi, Jun Nyung Lee, Bum Soo Kim, Ghil Suk Yoon, Hyun Tae Kim, Tae-Hwan Kim, Tae Gyun Kwon; Yeungnam Univ J Med. 2018;35(2):171-178. Published online December 31, 2018; DOI: https://doi.org/10.12701/yujm.2018.35.2.171

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Abstract PDF

Background
To evaluate mid-term oncological and functional outcomes in patients with prostate cancer treated by robot-assisted laparoscopic radical prostatectomy (RALP) at our institution.
Methods
We retrospectively reviewed the medical records of 128 patients with prostate cancer who underwent RALP at our institution between February 2008 and April 2010. All patients enrolled in this study were followed up for at least 5 years. We analyzed biochemical recurrence (BCR)-free survival using a Kaplan-Meier survival curve analysis and predictive factors for BCR using multivariate Cox regression analysis. Continence recovery rate, defined as no use of urinary pads, was also evaluated.
Results
Based on the D’Amico risk classification, there were 30 low-risk patients (23.4%), 47 intermediaterisk patients (38.8%), and 51 high-risk patients (39.8%), preoperatively. Based on pathological findings, 50.0% of patients (64/128) showed non-organ confined disease (≥T3a) and 26.6% (34/128) had high grade disease (Gleason score ≥8). During a median follow-up period of 71 months (range, 66-78 months), the frequency of BCR was 33.6% (43/128) and the median BCR-free survival was 65.9 (0.4-88.0) months. Multivariate Cox regression analysis revealed that high grade disease (Gleason score ≥8) was an independent predictor for BCR (hazard ratio=4.180, 95% confidence interval=1.02-17.12, p=0.047). In addition, a majority of patients remained continent following the RALP procedure, without the need for additional intervention for post-prostatectomy incontinence.
Conclusion
Our study demonstrated acceptable outcomes following an initial RALP procedure, despite 50% of the patients investigated demonstrating high-risk features associated with non-organ confined disease.

Citations

Citations to this article as recorded by

Prediction of a positive surgical margin and biochemical recurrence after robot-assisted radical prostatectomy
Ching-Wei Yang, Hsiao-Hsien Wang, Mohamed Fayez Hassouna, Manish Chand, William J. S. Huang, Hsiao-Jen Chung
Scientific Reports.2021;[Epub] CrossRef

Review Article

Functional recovery after radical prostatectomy for prostate cancer: Young Hwii Ko; Yeungnam Univ J Med. 2018;35(2):141-149. Published online December 31, 2018; DOI: https://doi.org/10.12701/yujm.2018.35.2.141

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Abstract PDF

With the enthusiasm regarding robotic application in radical prostatectomy in accordance with the widespread use of serum prostate-specific antigen as a screening test, the number of surgeries performed for complete removal of the gland is increasing continuously. However, owing to the adjacent anatomical location of the prostate to the nerve and urethral sphincter complex, functional recovery, namely improvement from post-prostatectomy incontinence (PPI) and post-prostatectomy erectile dysfunction, still remains a main problem for patients who are reluctant to undergo surgery and tend to choose alternative ways instead. Since the late 1980s, the introduction of radical prostatectomy by open surgical modalities, the depth of the anatomical understanding of the structure surrounding the prostate is getting tremendous, which leads to the development of new surgical modalities and techniques that are consequently aimed at reducing the incidences of PPI and erectile dysfunction. Briefly, recent data from robotic radical prostatectomy, particularly on PPI, are quite acceptable, but by contrast, the reported potency regain rate still remains <20%, which indicates the need for advanced surgical modification to overcome it. In this review, the authors summarized the recent findings on the anatomy and surgical techniques reported up to now.

Citations

Citations to this article as recorded by

The assessment of erectile dysfunction after radical prostatectomy using pudendal somatosensory evoked potential
Se Yun Kwon, Jin-Mo Park, Appuwawadu Mestri Nipun Lakshitha de Silva
PLOS ONE.2023; 18(11): e0292847. CrossRef
Fidgetin-like 2 negatively regulates axonal growth and can be targeted to promote functional nerve regeneration
Lisa Baker, Moses Tar, Adam H. Kramer, Guillermo A. Villegas, Rabab A. Charafeddine, Olga Vafaeva, Parimala Nacharaju, Joel Friedman, Kelvin P. Davies, David J. Sharp
JCI Insight.2021;[Epub] CrossRef

Case Report

Double primary lung adenocarcinoma diagnosed by epidermal growth factor receptor mutation status: Oh Jung Kwon, Min Hyeok Lee, Sung Ju Kang, Seul Gi Kim, In Beom Jeong, Ji Yun Jeong, Eun Jung Cha, Do Yeun Cho, Young Jin Kim, Ji Woong Son; Yeungnam Univ J Med. 2017;34(2):270-274. Published online December 31, 2017; DOI: https://doi.org/10.12701/yujm.2017.34.2.270

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Abstract PDF: A nodular density was detected on a chest radiograph taken from a 57-year-old Korean woman who was visiting a hospital for a routine check. Chest computed tomography revealed a 4.8 cm lobulated mass in the right lung and another focal nodular lesion in the left lung; biopsies of both lungs revealed adenocarcinoma. We conducted DNA sequencing and peptide nucleic acid clamping to investigate the potential double primary lung cancer. The results verified that the mass in the right lung had a mutation in the epidermal growth factor receptor, whereas the nodule in the left lung had a wild-type sequence, showing that these two were genetically different cancers from one another. Thus, we demonstrate that genetic testing is useful in determining double primary lung cancer, and we herein report on this case.

Review

The roles of endoscopic ultrasound in the diagnosis of pancreatobiliary cancer.: Kook Hyun Kim; Yeungnam Univ J Med. 2016;33(2):77-84. Published online December 31, 2016; DOI: https://doi.org/10.12701/yujm.2016.33.2.77

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Abstract PDF: Pancreatic cancer, the 4th leading cause of cancer-related death in the United States, has a very poor prognosis. Cholangiocarcinoma originates from either intrahepatic or extrahepatic bile duct, and its incidence is gradually increasing worldwide. Endoscopic retrograde cholangiopancreatography with brush cytology has a high false-negative rate for the diagnosis of biliary malignancy. Recently, endoscopic ultrasonography (EUS) has emerged as the potential modality to detect pancreatic cancer. EUS-guided fine needle aspiration for cytologic analysis made it possible to overcome the obstacle in differentiating between benign and malignant lesions in the pancreatobiliary lesion, and it has been well established as a safe and effective procedure. Herein, the clinical application of EUS in the diagnosis of pancreatobiliary cancer was reviewed.

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