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Kwon M, Hong SM, Lee K, Kim H. Liquid-based cytology features of pancreatic acinar cell carcinoma: comparison with other non-ductal neoplasms of the pancreas. J Pathol Transl Med 2024; 58:182-190. [PMID: 38973328 PMCID: PMC11261172 DOI: 10.4132/jptm.2024.06.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/09/2024] Open
Abstract
BACKGROUND Acinar cell carcinoma (ACC) is a rare malignant epithelial neoplasm, which shares many cytomorphological features with other non-ductal pancreatic neoplasms such as pancreatic neuroendocrine neoplasm (PanNEN) and solid-pseudopapillary neoplasm (SPN). Due to the relative rarity of these tumors, pathologists are less familiar with the cytological features, especially on liquid-based cytology (LBC) which has been relatively recently introduced for endoscopic ultrasound-guided fine needle aspiration specimens. METHODS We evaluated the detailed cytological features of 15 histologically confirmed ACC (7 conventional smears [CS], 8 LBC), and compared them with the LBC features of SPN (n = 9) and PanNEN (n = 9). RESULTS Compared with CS, LBCs of ACC demonstrated significantly less bloody background. All ACCs demonstrated prominent nucleoli and macronucleoli on LBC. On comparison with the LBC features of SPN and PanNEN, most ACCs demonstrated a necrotic background with apoptotic debris while PanNEN and SPN did not show these features. Acinar structures were predominantly observed in ACC, while frequent pseudopapillary structures were seen only in SPN. Prominent nucleoli and macronucleoli were only seen in ACC. CONCLUSIONS ACC had characteristic cytological features that could be observed on LBC preparations, such as high cellularity, necrotic/apoptotic background, nuclear tangles, acinar arrangement of cells, and macronucleoli. These findings also help distinguish ACC from PanNEN and SPN on LBC. It is important to be familiar with these features, as an accurate diagnosis on endoscopic ultrasound-guided fine needle aspiration cytology would have impact on the management of the patient.
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Affiliation(s)
- Minji Kwon
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea
| | - Kyoungbun Lee
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Haeryoung Kim
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Notohara K, Nakamura K. Tissue processing of endoscopic ultrasound-guided fine-needle aspiration specimens from solid pancreatic lesions. J Med Ultrason (2001) 2024; 51:261-274. [PMID: 38051462 DOI: 10.1007/s10396-023-01387-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/04/2023] [Indexed: 12/07/2023]
Abstract
Now that tissue cores can be obtained using fine-needle biopsy (FNB) needles, the ways tissues are handled for endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) are changing. Direct smear, touch smear of core tissues, and centrifugation have been used for cytological examinations, and liquid-based cytology (LBC), which allows immunostaining and genetic tests that use residual samples, is emerging as an alternative. We emphasize that liquid cytology (Cytospin™ cytology and LBC) is still important, because it enables the diagnosis of pancreatic ductal adenocarcinoma (PDAC) when cancerous cells are scarce in specimens. Cell blocks are being replaced by core tissues obtained via FNB needles. Recent reports indicate that rapid on-site evaluation (ROSE) is not necessary when FNB needles are used, and macroscopic on-site evaluation is used to evaluate specimen adequacy. Macroscopic findings of specimens are helpful in the diagnostic workup and for clarifying specimen-handling methods. In addition to the red strings and white cores observed in PDAC, mixed red and white strings, gray tissues, and gelatinous tissues are observed. Gray (necrotic) tissues and gelatinous (mucus) tissues are more suitable than histology for cell block or cytological processing. Tumor cells in neuroendocrine tumors (NETs) are numerous in red strings but cannot be observed macroscopically. ROSE might thus be necessary for lesions that may be NETs. Core tissues can be used for genetic tests, such as those used for KRAS mutations and comprehensive genomic profiling. Cytological materials, including slides and LBC specimens, can also be genetic test materials.
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Affiliation(s)
- Kenji Notohara
- Department of Anatomic Pathology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, 710-8602, Japan.
| | - Kaori Nakamura
- Pathological Laboratory, Division of Medical Technology, Kurashiki Central Hospital, Kurashiki, Japan
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Du C, He Z, Gao F, Li L, Han K, Feng X, Wang X, Tang P, Chai N, Linghu E. Factors affecting the diagnostic value of liquid-based cytology by EUS-FNA in the diagnosis of pancreatic cystic neoplasms. Endosc Ultrasound 2024; 13:94-99. [PMID: 38947751 PMCID: PMC11213617 DOI: 10.1097/eus.0000000000000041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/02/2024] Open
Abstract
Background and Objectives This study retrospectively evaluated the value of liquid-based cytology (LBC) alone for diagnosing pancreatic cystic neoplasms (PCNs) in a large sample and initially estimated factors that might affect LBC diagnostic ability. Methods From April 2015 to October 2022, we prospectively enrolled 331 patients with suspected PCNs in our prospective database. Among them, 112 patients chosen to receive surgical resection were included. Only 96 patients who underwent EUS-guided cystic fluid LBC were finally studied. The diagnostic values of LBC for differentiating benign and malignant PCNs and subtypes of PCNs were evaluated. Results There were 71 female and 25 male patients with a mean age of 47.6 ± 14.4 years. The median cyst size was 43.4 mm. The diagnostic accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of LBC for the differentiation of benign and malignant PCNs were 96.9%, 57.1%, 100%, 100%, and 96.7%, respectively. The overall diagnostic accuracy of LBC for specific cyst types was 33.3% (32/96). Cysts located in the pancreatic body/tail or with irregular shapes were more likely to obtain a definite LBC diagnosis. At the same time, age, sex, tumor size, cystic fluid viscosity, operation time, needle type, and presence of septation were not significantly different. Conclusion Liquid-based cytology alone is useful for differentiating benign PCNs from malignant PCNs and can successfully characterize the PCN subtypes in one-third of patients. Pancreatic cystic neoplasms located in the body/tail or exhibiting irregular shapes are more likely to obtain a definite LBC diagnosis.
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Affiliation(s)
- Chen Du
- First Medical Center of PLA General Hospital, Beijing, China
| | - Zhengting He
- First Medical Center of PLA General Hospital, Beijing, China
| | - Fei Gao
- First Medical Center of PLA General Hospital, Beijing, China
| | - Longsong Li
- First Medical Center of PLA General Hospital, Beijing, China
| | - Ke Han
- First Medical Center of PLA General Hospital, Beijing, China
| | - Xiuxue Feng
- First Medical Center of PLA General Hospital, Beijing, China
| | - Xiangdong Wang
- First Medical Center of PLA General Hospital, Beijing, China
| | - Ping Tang
- First Medical Center of PLA General Hospital, Beijing, China
| | - Ningli Chai
- First Medical Center of PLA General Hospital, Beijing, China
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Yan X, Zhou G, Ji J, Gui Y, Chang X, Zhang J, Lv K, Tan L. Evaluation of the diagnostic efficacy of liquid-based cytology obtained via percutaneous ultrasound-guided fine-needle aspiration for pancreatic masses: a large tertiary center's 8-year experience. J Cancer Res Clin Oncol 2023; 149:17189-17197. [PMID: 37783929 DOI: 10.1007/s00432-023-05438-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/18/2023] [Indexed: 10/04/2023]
Abstract
PURPOSE There were limited data on the diagnostic efficacy of liquid-based cytology (LBC) for pancreatic tissues acquired by percutaneous ultrasound-guided fine-needle aspiration (US-FNA). This study aimed to evaluate the diagnostic value of LBC acquired via percutaneous US-FNA for pancreatic tumors compared with LBC combined with smear cytology (SC). METHODS A retrospective database search (January 2014 and February 2022) was performed for patients who underwent percutaneous US-FNA with both LBC and SC. Clinical and pathological data were collected from 298 patients; eventually, 251 cases met the inclusion criteria. Diagnostic accuracy, sensitivity (SEN), specificity (SPE), positive predictive value (PPV) and negative predictive value (NPV) were compared. Rapid on-site evaluation (ROSE) was not available in all cases. RESULTS Based on the pancreaticobiliary cytology guidelines published by the Papanicolaou Society of Cytopathology, 224 (89.2%), 13 (5.2%) and 14 (5.6%) cases were diagnosed as malignant, pre-malignant and benign lesions, respectively. The diagnostic accuracy of the LBC + SC (88.5%) was better than that of LBC (87.3%) but without statistical significance (P = 0.125). The SEN, SPE, PPV and NPV were 87.5%, 85.2%, 98.0% and 45.1%, respectively, in the LBC group and 88.8%, 85.2%, 98.0% and 47.9%, respectively, in the LBC + SC group. According to univariate and multivariate analyses, there were no factors have significant association with the diagnostic sensitivity of LBC. CONCLUSIONS LBC obtained via percutaneous US-FNA provides good diagnostic value for pancreatic lesions and there was no significant difference between the diagnostic accuracy of LBC and LBC + SC when ROSE was unavailable.
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Affiliation(s)
- Xiaoyi Yan
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Guili Zhou
- Department of Ultrasound, Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, 518000, China
| | - Jiaqi Ji
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yang Gui
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xiaoyan Chang
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Jing Zhang
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Ke Lv
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Li Tan
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Qu W, Yang J, Li J, Yuan G, Li S, Chu Q, Xie Q, Zhang Q, Cheng B, Li Z. Avoid non-diagnostic EUS-FNA: a DNN model as a possible gatekeeper to distinguish pancreatic lesions prone to inconclusive biopsy. Br J Radiol 2023; 96:20221112. [PMID: 37195026 PMCID: PMC10607397 DOI: 10.1259/bjr.20221112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/20/2023] [Accepted: 05/11/2023] [Indexed: 05/18/2023] Open
Abstract
OBJECTIVE This work aimed to explore the utility of CT radiomics with machine learning for distinguishing the pancreatic lesions prone to non-diagnostic ultrasound-guided fine-needle aspiration (EUS-FNA). METHODS 498 patients with pancreatic EUS-FNA were retrospectively reviewed [Development cohort: 147 pancreatic ductal adenocarcinoma (PDAC); Validation cohort: 37 PDAC]. Pancreatic lesions not PDAC were also tested exploratively. Radiomics extracted from contrast-enhanced CT was integrated with deep neural networks (DNN) after dimension reduction. The receiver operating characteristic (ROC) curve, and decision curve analysis (DCA) were performed for model evaluation. And, the explainability of the DNN model was analyzed by integrated gradients. RESULTS The DNN model was effective in distinguishing PDAC lesions prone to non-diagnostic EUS-FNA (Development cohort: AUC = 0.821, 95% CI: 0.742-0.900; Validation cohort: AUC = 0.745, 95% CI: 0.534-0.956). In all cohorts, the DNN model showed better utility than the logistic model based on traditional lesion characteristics with NRI >0 (p < 0.05). And, the DNN model had net benefits of 21.6% at the risk threshold of 0.60 in the validation cohort. As for the model explainability, gray-level co-occurrence matrix (GLCM) features contributed the most averagely and the first-order features were the most important in the sum attribution. CONCLUSION The CT radiomics-based DNN model can be a useful auxiliary tool for distinguishing the pancreatic lesions prone to nondiagnostic EUS-FNA and provide alerts for endoscopists preoperatively to reduce unnecessary EUS-FNA. ADVANCES IN KNOWLEDGE This is the first investigation into the utility of CT radiomics-based machine learning in avoiding non-diagnostic EUS-FNA for patients with pancreatic masses and providing potential pre-operative assistance for endoscopists.
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Affiliation(s)
- Weinuo Qu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiannan Yang
- School of Data Science, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Jiali Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guanjie Yuan
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shichao Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qian Chu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingguo Xie
- Biomedical Engineering Department, College of Life Sciences and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | | | - Bin Cheng
- Department of Gastroenterology and Hepatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Jun JC, Lee SH, Lee HM, Kim SG, Chung H, Kim JS, Park N, Choi JH, Kwak Y, Cho SJ. A prospective randomized noninferiority trial comparing conventional smears and SurePathTM liquid-based cytology in endoscopic ultrasound-guided sampling of esophageal, gastric, and duodenal lesions. Medicine (Baltimore) 2023; 102:e34321. [PMID: 37478273 PMCID: PMC10662805 DOI: 10.1097/md.0000000000034321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/22/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Several liquid-based cytology (LBC) methods are currently used, but the diagnostic accuracy of each method is not well known. We aimed to compare the diagnostic performance of SurePathTM LBC and conventional smear (CS) cytology in endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) samples of esophageal, gastric, and duodenal lesions. METHODS As a prospective randomized noninferiority study, patients who needed EUS-FNA due to subepithelial mass in the upper gastrointestinal tract were randomly assigned 1:1 to the LBC and CS groups. Cytologic preparation was carried out using a crossover design where 1 method was used for the first needle-pass sample and another method was used for the second needle-pass sample. The primary outcome was to compare the diagnostic performance between LBC and CS using the final diagnosis as the gold standard. RESULTS A total of 87 patients were randomized and 60 patients were analyzed. There were no differences between LBC and CS in diagnostic accuracy (91.7% vs 86.7%, P = .380), sensitivity (97.7% vs 90.7%, P = .169), specificity (76.5% vs 76.5%, P > .99), negative predictive value (92.9% vs 76.5%, P = .225), or positive predictive value (91.3% vs 90.7%, P = .921). The background of LBC was less bloody than that of CSs (5.0% vs 53.3%, P < .001) and the sample preparation time of LBC was shorter than that of CSs (29 ± 7 seconds vs 90 ± 17 seconds, P < .001). CONCLUSION In the EUS-FNA of a subepithelial mass in the upper gastrointestinal tract, the diagnostic performance of LBC was not inferior to that of CS. The field of view was better in LBC, because the background was less bloody and necrotic. As LBC is more convenient to perform and takes shorter time, it is expected that it can replace the CS method for EUS-FNA samples.
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Affiliation(s)
- Jae Chang Jun
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Hyub Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Han Myung Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Gyun Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hyunsoo Chung
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Seong Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Namyoung Park
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Ho Choi
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yoonjin Kwak
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Soo-Jeong Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Next-Generation Sequencing Analysis of Pancreatic Cancer Using Residual Liquid Cytology Specimens from Endoscopic Ultrasound—Guided Fine-Needle Biopsy: A Prospective Comparative Study with Tissue Specimens. Diagnostics (Basel) 2023; 13:diagnostics13061078. [PMID: 36980386 PMCID: PMC10047095 DOI: 10.3390/diagnostics13061078] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
This study evaluated the feasibility and clinical utility of liquid-based cytology (LBC) specimens via endoscopic ultrasound–guided fine-needle biopsy (EUS-FNB) for next-generation sequencing (NGS) of pancreatic cancer (PC). We prospectively evaluated the performance of DNA extraction and NGS using EUS-FNB samples obtained from PC. Thirty-three consecutive patients with PC who underwent EUS-FNB at our hospital were enrolled. DNA samples were obtained from 96.8% of the patients. When stratified with a variant allele frequency (VAF) > 10% tumor burden, the NGS success rate was 76.7% (n = 23) in formalin-fixed paraffin-embedded (FFPE), 83.3% (n = 25) in LBC, and 76.7% (n = 23) in frozen samples. The overall NGS success rate was 86.7% (n = 26) using FFPE, LBC, or frozen samples. The detection rates for the main mutated genes were as follows: 86.7% for KRAS, 73.3% for TP53, 66.7% for CDKN2A, 36.7% for SMAD4, and 16.7% for ARID1A. LBC had the highest median value of VAF (23.5%) for KRAS and TP53. PC mutation analysis using NGS was successfully performed using LBC compared with FFPE and frozen samples. This approach provides an alternative and affordable source of molecular testing materials.
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Lee MW, Paik WH, Lee SH, Chun JW, Huh G, Park NY, Kim JS, Cho IR, Ryu JK, Kim YT, Kim H, Lee K. Usefulness of Liquid-Based Cytology in Diagnosing Biliary Tract Cancer Compared to Conventional Smear and Forceps Biopsy. Dig Dis Sci 2023; 68:274-283. [PMID: 35596035 DOI: 10.1007/s10620-022-07535-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 04/21/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND/AIMS Liquid-based cytology (LBC) has been shown to improve the diagnostic efficacy of brush cytology for thyroid, cervical and pancreatic cancer. To evaluate the diagnostic performance of LBC for biliary tract cancer, we compared it with conventional smears and forceps biopsies. METHODS A retrospective study was conducted of all consecutive patients who underwent brush cytology under ERCP from January 2010 to April 2020. The primary outcome was the diagnostic efficacy of conventional smears and LBC. The difference between the two groups was corrected using inverse probability weighting (IPW). The secondary outcome was the sensitivity and specificity of brush cytology and forceps biopsy. The secondary outcome was evaluated in patients who underwent both methods. RESULTS Among 162 patients, conventional smears were performed in 70 patients and LBC was performed in 92 patients. In the primary analysis using IPW, the sensitivity of conventional smears and LBC was 56.00% and 78.26% respectively (P = 0.009). The specificity was 100% for both methods. The accuracy was 66.15% for conventional smears and 83.33% for LBC (P = 0.012). In the secondary analysis, the sensitivity of conventional smears versus forceps biopsies was 62.16% versus 78.38% (P = 0.034) and 81.16% for both LBC and forceps biopsies. The specificity of both cytological examination and forceps biopsies was 100%. CONCLUSIONS Liquid-based cytology demonstrated better sensitivity and accuracy than conventional smears. Moreover, its diagnostic performance was close to that of forceps biopsies.
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Affiliation(s)
- Min Woo Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Woo Hyun Paik
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Sang Hyub Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Jung Won Chun
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Gunn Huh
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Nam Young Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Joo Seong Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - In Rae Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Ji Kon Ryu
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Yong Tae Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Haeryoung Kim
- Department of Pathology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Kyoungbun Lee
- Department of Pathology, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
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Itonaga M, Ashida R, Kitano M. The usefulness of liquid-based cytology for endoscopic ultrasound-guided tissue acquisition of solid pancreatic masses. Front Med (Lausanne) 2022; 9:943792. [PMID: 36052322 PMCID: PMC9424663 DOI: 10.3389/fmed.2022.943792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 07/22/2022] [Indexed: 11/13/2022] Open
Abstract
Liquid-based cytology (LBC) is used primarily for cervical cytology, although it is also used for analyzing liquid samples such as urine and ascites specimens, as well as fine needle aspiration material, such as those obtained from breast and thyroid. The usefulness of the LBC method for endoscopic ultrasound-guided tissue acquisition (EUS-TA) of solid pancreatic masses was recently reported. The LBC method can produce multiple pathological slides and can be applied to immunocytochemistry and genetic analyses. In this article, we review the usefulness of LBC for EUS-TA of solid pancreatic masses.
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Paik WH. Endoscopic ultrasound-guided tissue acquisition: Needle types, technical issues, and sample handling. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2022. [DOI: 10.18528/ijgii220019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Woo Hyun Paik
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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The Utility of Endoscopic-Ultrasonography-Guided Tissue Acquisition for Solid Pancreatic Lesions. Diagnostics (Basel) 2022; 12:diagnostics12030753. [PMID: 35328306 PMCID: PMC8947755 DOI: 10.3390/diagnostics12030753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/13/2022] [Accepted: 03/17/2022] [Indexed: 02/07/2023] Open
Abstract
Endoscopic-ultrasonography-guided tissue acquisition (EUS-TA) has been widely performed for the definitive diagnosis of solid pancreatic lesions (SPLs). As the puncture needles, puncture techniques, and sample processing methods have improved, EUS-TA has shown higher diagnostic yields and safety. Recently, several therapeutic target genomic biomarkers have been clarified in pancreatic ductal carcinoma (PDAC). Although only a small proportion of patients with PDAC can benefit from precision medicine based on gene mutations at present, precision medicine will also be further developed for SPLs as more therapeutic target genomic biomarkers are identified. Advances in next-generation sequencing (NGS) techniques enable the examination of multiple genetic mutations in limited tissue samples. EUS-TA is also useful for NGS and will play a more important role in determining treatment strategies. In this review, we describe the utility of EUS-TA for SPLs.
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Itonaga M, Ashida R, Murata SI, Yamashita Y, Hatamaru K, Tamura T, Kawaji Y, Kayama Y, Emori T, Kawai M, Yamaue H, Matsuzaki I, Nagai H, Kinoshita Y, Wan K, Shimokawa T, Kitano M. Kras Gene Analysis Using Liquid-Based Cytology Specimens Predicts Therapeutic Responses and Prognosis in Patients with Pancreatic Cancer. Cancers (Basel) 2022; 14:cancers14030551. [PMID: 35158819 PMCID: PMC8833456 DOI: 10.3390/cancers14030551] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/08/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary New therapeutic strategies are needed to improve the prognosis of pancreatic ductal adenocarcinoma (PDAC) and developing biomarkers that can guide individualized treatment decisions is an important part of these strategies. In this study, we found that unresectable PDAC patients harboring wild-type Kras had significantly longer progression-free survival (PFS) and overall survival (OS) than those harboring mutant Kras after undergoing first-line gemcitabine and nab-paclitaxel (GA) therapy and that wild-type Kras was a significant predictor of longer PFS and OS. This is the first report suggesting that Kras gene analysis has the potential to predict therapeutic responses to GA and the prognosis of unresectable PDAC. Abstract Background: Although several molecular analyses have shown that the Kras gene status is related to long-term survival of patients with pancreatic ductal adenocarcinoma (PDAC), the results remain controversial. Here, we examined the Kras gene status in a cohort of unresectable PDAC patients who underwent first-line therapy with gemcitabine and nab-paclitaxel (GA) and assessed differences in chemotherapy responses and survival. Methods: Patients with a histological diagnosis of PDAC (based on EUS-guided fine-needle aspiration) from 2017 to 2019 were enrolled. Tumor genomic DNA was extracted from residual liquid-based cytology specimens and Kras mutations were assessed using the quenching probe method. The relationships between the Kras status and progression-free survival (PFS) and overall survival (OS) were assessed. Results: Of the 110 patients analyzed, 15 had wild-type Kras. Those with the wild-type gene showed significantly longer PFS and OS than those with mutant Kras (6.9/5.3 months (p = 0.044) vs. 19.9/11.8 months (p = 0.037), respectively). Multivariate analyses identified wild-type Kras as a significant independent factor associated with longer PFS and OS (HR = 0.53 (p = 0.045) and HR = 0.35 (p = 0.007), respectively). Conclusions: The analysis of the Kras gene status could be used to predict therapeutic responses to GA and prognosis in unresectable PDAC patients.
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Affiliation(s)
- Masahiro Itonaga
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Reiko Ashida
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
- Correspondence:
| | - Shin-Ichi Murata
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (S.-I.M.); (M.K.); (H.Y.)
| | - Yasunobu Yamashita
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Keiichi Hatamaru
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Takashi Tamura
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Yuki Kawaji
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Yuudai Kayama
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Tomoya Emori
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
| | - Manabu Kawai
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (S.-I.M.); (M.K.); (H.Y.)
| | - Hiroki Yamaue
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (S.-I.M.); (M.K.); (H.Y.)
| | - Ibu Matsuzaki
- Department of Human Pathology, Wakayama Medical University, Wakayama 641-0012, Japan; (I.M.); (H.N.); (Y.K.)
| | - Hirokazu Nagai
- Department of Human Pathology, Wakayama Medical University, Wakayama 641-0012, Japan; (I.M.); (H.N.); (Y.K.)
| | - Yuichi Kinoshita
- Department of Human Pathology, Wakayama Medical University, Wakayama 641-0012, Japan; (I.M.); (H.N.); (Y.K.)
| | - Ke Wan
- Clinical Study Support Center, Wakayama Medical University, Wakayama 641-0012, Japan; (K.W.); (T.S.)
| | - Toshio Shimokawa
- Clinical Study Support Center, Wakayama Medical University, Wakayama 641-0012, Japan; (K.W.); (T.S.)
| | - Masayuki Kitano
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.I.); (Y.Y.); (K.H.); (T.T.); (Y.K.); (Y.K.); (T.E.); (M.K.)
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Kanayama K, Izuhara J. Impact of LBC fixative type and fixation time on molecular analysis of pancreatic cancer cells: A comparative study of cell morphology, antigenicity and nucleic acids. J Cytol 2022; 39:66-71. [PMID: 35814881 PMCID: PMC9261998 DOI: 10.4103/joc.joc_13_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/20/2022] [Indexed: 11/04/2022] Open
Abstract
Introduction: Liquid-based cytology (LBC) has been widely used since 2000. Next-Generation Sequencing (NGS) analysis of residual specimens in LBC fixative may also be performed for pancreatic cancer in the near future. We examined cell morphology, antigenicity and nucleic acids in pancreatic cancer cells at different fixation times using two types of LBC fixatives. Methods: PANC-1 cells were fixed in 1 ml CytoRich Red (CR), CytoRich Blue (CB), 95% ethanol (95% AL) or 10% neutral buffered formalin (10% NBF) and evaluated for cell area, antigenicity and nucleic acids with fixation times of 1 hour and 1, 3, 9, and 14 days. Antigenicity was evaluated by immunocytochemical staining for p53 and CK20, and nucleic acid fragmentation was assessed by real-time PCR. Results: There was no difference in total cell area between 1 hour and 14 day fixation times for the CR group, but the CB group showed cell contraction with 9 days fixation. In immunocytochemical staining, the CR group showed high p53 and CK20 positivity even after 14 days fixation. The CB group had a lower p53 positive rate than the CR group from 1 hour fixation. For nucleic acid fragmentation, Ct values for the CR group increased with fixation time. The CB group had consistently low Ct values. Conclusion: Different LBC fixatives and fixation time can have varying effects on cell morphology, antigenicity and nucleic acids in pancreatic cancer cells. Therefore, fixative type and fixation time should be considered for molecular testing on residual samples in LBC fixatives.
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14
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Ohsaki H, Ueda K, Minakawa T, Oshiro M, Kamoshida S, Sugiura Y, Suzuki M, Nishiyama A. Cytologic features of oral squamous cell carcinoma in an Indo-Pacific bottlenose dolphin (Tursiops aduncus): Papanicolaou stain and immunocytochemistry using liquid-based cytology. Vet Clin Pathol 2021; 50:404-409. [PMID: 34472131 DOI: 10.1111/vcp.12996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/04/2021] [Accepted: 01/04/2021] [Indexed: 12/26/2022]
Abstract
Although oral cytology using Papanicolaou stain is useful for the early detection of oral premalignant lesions and squamous cell carcinoma (SCC) in people, little work has been conducted on this topic in veterinary medicine. This paper describes the features of oral cytology using Papanicolaou stain and immunocytochemistry on liquid-based cytology slides in a case of oral SCC in an Indo-Pacific bottlenose dolphin (Tursiops aduncus). In this case, dysplastic cells with koilocyte-like changes and SCC cells were identified using the Papanicolaou stain. These cells were positive for p53 using an immunocytochemistry analysis. A cytologic diagnosis of SCC was made. We believe that the early detection of premalignant oral lesions and SCC in dolphins can be significantly improved with cytology using liquid-based cytology, Papanicolaou staining, and immunocytochemistry.
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Affiliation(s)
- Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Keiichi Ueda
- Okinawa Churashima Foundation, Kunigami-gun, Japan
| | | | - Mariko Oshiro
- Health Information Management Major, Faculty of International Studies, Meio University, Nago, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, Shinjuku-ku, Japan
| | - Miwa Suzuki
- Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kida-gun, Japan
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15
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Chua TY, Kyanam Kabir Baig KR, Leung FW, Ashat M, Jamidar PA, Mulki R, Singh A, Yu JX, Lightdale JR. GIE Editorial Board top 10 topics: advances in GI endoscopy in 2020. Gastrointest Endosc 2021; 94:441-451. [PMID: 34147512 DOI: 10.1016/j.gie.2021.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 02/08/2023]
Abstract
The American Society for Gastrointestinal Endoscopy's Gastrointestinal Endoscopy Editorial Board reviewed a systematic literature search of original endoscopy-related articles published during 2020 in Gastrointestinal Endoscopy and 10 other high-impact medical and gastroenterology journals. Votes from each individual board member were tallied to identify a consensus list of the 10 most significant topic areas in GI endoscopy over the calendar year of study using 4 criteria: significance, novelty, impact on national health, and impact on global health. The 10 areas identified were as follows: artificial intelligence in endoscopy, coronavirus disease 2019 and GI practice, third-space endoscopy, lumen-apposing metal stents, single-use duodenoscopes and other disposable equipment, endosonographic needle technology and techniques, endoscopic closure devices, advances in GI bleeding management, improvements in polypectomy techniques, and bariatric endoscopy. Each board member contributed a summary of important articles relevant to 1 to 2 topic areas, leading to a collective summary that is presented in this document of the "top 10" endoscopic advances of 2020.
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Affiliation(s)
- Tiffany Y Chua
- Division of Digestive Diseases, Harbor-University of California Los Angeles, Torrance, California, USA
| | - Kondal R Kyanam Kabir Baig
- Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Felix W Leung
- VA Sepulveda Ambulatory Care Center, North Hills, California, USA
| | - Munish Ashat
- Division of Gastroenterology and Hepatology, Indiana School of Medicine, Indianapolis, Indiana, USA
| | - Priya A Jamidar
- Section of Digestive Diseases, Yale School of Medicine, New Haven, Connecticut, USA
| | - Ramzi Mulki
- Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ajaypal Singh
- Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, Illinois, USA
| | - Jessica X Yu
- Division of Gastroenterology and Hepatology, Oregon Health & Science University, Portland, Oregon, USA
| | - Jenifer R Lightdale
- Division of Pediatric Gastroenterology and Nutrition, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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16
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Keihanian T, Diaz L, Plafsky L, Shergill U, Satiya J, Abraham R, Garcia-Buitrago M, Tabibian JH, Girotra M. Diagnostic Concordance of Cytology and Histology in Samples Obtained via Endoscopic Ultrasound-Guided Fine-Needle Biopsy (EUS-FNB). Cureus 2021; 13:e15596. [PMID: 34277217 PMCID: PMC8272933 DOI: 10.7759/cureus.15596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2021] [Indexed: 11/09/2022] Open
Abstract
Introduction Endoscopic ultrasound (EUS)-guided fine-needle aspiration and biopsy (FNA/FNB) to obtain cytological aspirates and histological core samples, respectively, are the standard of care for diagnosing lesions in/adjacent to the upper/lower gastrointestinal tract. Due to the lack of standardization of tissue processing, it is unclear whether core samples should be sent only for histology (formalin) or cytology (CytoLyt), or both. The aim of this study was to investigate the diagnostic concordance rates between cytology and histology on EUS-FNB core samples. Methods A total of 227 patients underwent EUS-FNB between October-2017 and February-2019 by a single therapeutic endoscopist; 44 core-tissue samples (41 patients) were placed alternately in CytoLyt (cytology) and formalin (histology), with equal passes into each, to best achieve a proportionate sample amount. The patient's demographics, medical history, pertinent imaging, EUS indication/findings were reviewed. Main outcomes included concordance rates between cytology-histology and diagnostic accuracy for malignancy. Results Cytology and histology were discordant in five cases (11.5%); four with negative cytology but a definite diagnosis of malignancy achieved with histology. One case was suspected as neoplasm on cytology but further characterized as benign on histology. Cytology failed to sub-characterize an additional four mass-like pancreatic benign entities, due to inadequate tissue architecture assessment in the CytoLyt sample. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of cytology for diagnosis of malignancy were 87.88% (95%CI: 71.8-96.6), 90.91% (95%CI: 58.7-99.7), 96.67% (95%CI: 81.6-99.4), and 71.43% (95%CI: 49.4-86.4). Discussion We observed 11.5% diagnostic discordance between cytology and histology on EUS-FNB core samples, with histology being superior. Future multicenter prospective randomized studies are needed to establish an accurate and cost-effective diagnostic process.
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Affiliation(s)
- Tara Keihanian
- Gastroenterology, University of Miami Miller School of Medicine, Miami, USA.,Gastroenterology and Therapeutic Endoscopy, Swedish Medical Center, Seattle, USA
| | - Liege Diaz
- Gastroenterology and Hepatology, Jackson Memorial Hospital, Miami, USA
| | - Liza Plafsky
- Internal Medicine, Jackson Memorial Hospital, Miami, USA
| | | | - Jinendra Satiya
- Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Rtika Abraham
- Endocrinology, Diabetes and Metabolism, University of Miami Miller School of Medicine, Miami, USA
| | | | - James H Tabibian
- Gastroenterology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, USA.,Gastroenterology, Olive View-University of California Los Angeles Medical Center, Sylmar, USA
| | - Mohit Girotra
- Gastroenterology and Hepatology; Advanced Endoscopy, University of Miami Miller School of Medicine, Miami, USA.,Gastroenterology and Therapeutic Endoscopy, Swedish Medical Center, Seattle, USA
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17
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Zhang XH, Ma SY, Liu N, Wei ZC, Gao X, Hao YJ, Liu YX, Cai YQ, Wang JH. Comparison of smear cytology with liquid-based cytology in pancreatic lesions: A systematic review and meta-analysis. World J Clin Cases 2021; 9:3308-3319. [PMID: 34002139 PMCID: PMC8107895 DOI: 10.12998/wjcc.v9.i14.3308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/30/2021] [Accepted: 03/10/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) is a safe and accurate technique to confirm the diagnosis of pancreatic cancers. Recently, numerous studies comparing the diagnostic efficacy of smear cytology (SC) and liquid-based cytology (LBC) for pancreatic lesions yielded mixed results.
AIM To compare and identify the better cytology method for EUS-FNA in pancreatic lesions.
METHODS A comprehensive search of PubMed, Embase, and Cochrane was undertaken through July 18, 2020. The primary endpoint was diagnostic accuracy (sensitivity and specificity). Secondary outcomes included sample adequacy and post procedure complications. In addition, factors affecting diagnostic efficacy were discussed.
RESULTS Data on a total of 1121 comparisons from 10 studies met the inclusion criteria. Pooled rates of sensitivity for SC and LBC were 78% (67%-87%) vs 75% (67%-81%), respectively. In any case, both SC and LBC exhibited a high specificity close to 100%. Inadequate samples more often appeared in LBC compared with SC. However, the LBC samples exhibited a better visual field than SC. Very few post procedure complications were observed.
CONCLUSION Our data suggested that for EUS-FNA in pancreatic lesions (particularly solid lesions), SC with Rapid On-Site Evaluation represents a superior diagnostic technique. If Rapid On-Site Evaluation is unavailable, LBC may replace smears. The diagnostic accuracy of LBC depends on different LBC techniques.
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Affiliation(s)
- Xiao-Hui Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Shi-Yang Ma
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Na Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Zhong-Cao Wei
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Xu Gao
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Yu-Jie Hao
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Yi-Xin Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Ya-Qin Cai
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Jin-Hai Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
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18
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Driescher C, Fuchs K, Haeberle L, Goering W, Frohn L, Opitz FV, Haeussinger D, Knoefel WT, Keitel V, Esposito I. Bile-Based Cell-Free DNA Analysis Is a Reliable Diagnostic Tool in Pancreatobiliary Cancer. Cancers (Basel) 2020; 13:E39. [PMID: 33375555 PMCID: PMC7818177 DOI: 10.3390/cancers13010039] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 12/13/2022] Open
Abstract
Currently available serum biomarkers for pancreatobiliary cancers lack sensitivity and specificity and ultimate diagnosis still requires invasive procedures for histological confirmation. The detection of tumor-specific genetic aberrations with utilization of cell free DNA (cfDNA) is a less invasive approach than traditional tissue biopsies; however, it has not been implemented into clinical routine. In this study, we investigated bile as a liquid biopsy source in pancreatobiliary cancers and compared its potential as cell-free DNA source to plasma. Blood (n = 37) and bile (n = 21) samples were collected from patients affected by pancreatic ductal adenocarcinoma (PDAC) and extrahepatic cholangiocarcinoma (CCA) or with non-malignant biliary obstructions (blood n = 16; bile n = 21). Panel-based next generation sequencing (NGS) and digital droplet PCR (ddPCR) were applied for tumor mutation profiling. NGS results from matched tumor tissues (n = 29) served as comparison. Sequencing of cfDNA from bile resulted in detection of 96.2% of the pathogenic tumor mutations found in matched tissue samples. On the other hand, only 31.6% of pathogenic tumor mutations found in tissue could be detected in plasma. In a direct comparison, only half of the mutations detected in bile cfDNA were concordantly detected in plasma from the same patients. Panel NGS and ddPCR displayed comparable sensitivity. In conclusion, bile is a suitable source of cfDNA for the diagnosis of pancreatobiliary cancer and performs more reliably than plasma. Although primary diagnosis still requires histologic confirmation, bile-derived cfDNA could offer an alternative if tissue sampling is not feasible and might allow less invasive disease monitoring.
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Affiliation(s)
- Caroline Driescher
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
| | - Katharina Fuchs
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (K.F.); (D.H.); (V.K.)
| | - Lena Haeberle
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
| | - Wolfgang Goering
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
| | - Lisa Frohn
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
| | - Friederike V. Opitz
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
| | - Dieter Haeussinger
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (K.F.); (D.H.); (V.K.)
| | - Wolfram Trudo Knoefel
- Department of General, Thoracic and Pediatric Surgery, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany;
| | - Verena Keitel
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (K.F.); (D.H.); (V.K.)
| | - Irene Esposito
- Institute of Pathology, Heinrich-Heine-University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany; (C.D.); (L.H.); (W.G.); (L.F.); (F.V.O.)
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19
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Chandan S, Mohan BP, Khan SR, Ofosu A, Dhaliwal AS, Shah AR, Bhogal N, Mashiana HS, Mashiana SS, Kassab LL, Ponnada S, Facciorusso A, Bhat I, Singh S, Witt BL, Adler DG. Comparison of EUS-guided conventional smear and liquid-based cytology in pancreatic lesions: A systematic review and meta-analysis. Endosc Int Open 2020; 8:E1611-E1622. [PMID: 33140017 PMCID: PMC7581473 DOI: 10.1055/a-1240-0027] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023] Open
Abstract
Background and study aims Endoscopic ultrasound (EUS)-guided fine-needle aspiration (EUS-FNA) has limitations of inadequate sampling and false-negative results for malignancy. It has been performed using conventional smear (CS) cytology with rapid on-site evaluation (ROSE) with reasonable diagnostic accuracy. An alternative to ROSE is liquid-based cytology (LBC). Commonly used LBC techniques include precipitation-based (SurePath™) and filtration-based (ThinPrep ® , CellPrep ® ). Data regarding the diagnostic efficacy of LBC compared with CS are limited. Methods Multiple databases were searched through March 2020 to identify studies reporting diagnostic yield of EUS-guided CS and LBC in pancreatic lesions. Pooled diagnostic odds and rates of performance for the cytologic diagnoses of benign, suspicious, and malignant lesions were calculated. Diagnostic efficacy was evaluated by pooled rates of accuracy, sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). Results Nine studies with a total of 1308 patients were included in our final analysis. Pooled diagnostic odds of CS cytology were 1.69 (CI 1.02-2.79) and 0.39 (CI 0.19-0.8) for malignant lesions when compared to filtration-based and precipitation-based LBC techniques, respectively. For CS, precipitation-based and filtration-based LBC, pooled diagnostic accuracy was 79.7 %, 85.2 %, 77.3 %, sensitivity was 79.2 %, 83.6 %, 68.3 %, and specificity was 99.4 %, 99.5 %, 99.5 %, respectively. Conclusions The precipitation-based LBC technique (SurePath™) had superior diagnostic odds for malignant pancreatic lesions compared with CS cytology in the absence of ROSE. It showed superior accuracy and sensitivity, but comparable specificity and PPV. Diagnostic odds of CS cytology in the absence of ROSE were superior to the filtration-based LBC technique (ThinPrep ® , Cellprep ® ) for diagnosing malignant pancreatic lesions.
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Affiliation(s)
- Saurabh Chandan
- Division of Gastroenterology and Hepatology, CHI Creighton University Medical Center, Omaha, Nebraska, USA
| | - Babu P. Mohan
- Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Shahab R. Khan
- Section of Gastroenterology, Rush University Medical Center, Chicago, Illinois, USA
| | - Andrew Ofosu
- Division of Gastroenterology & Hepatology, Stanford University, Stanford, California, United States
| | - Amaninder S. Dhaliwal
- Division of Digestive Diseases & Nutrition, University of South Florida, Tampa, Florida, USA
| | - Aun R. Shah
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Neil Bhogal
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Harmeet S. Mashiana
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Simran S. Mashiana
- Pathology & Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Lena L. Kassab
- Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Suresh Ponnada
- Internal Medicine, Carilion Roanoke Memorial Hospital, Roanoke, Virginia, USA
| | - Antonio Facciorusso
- Gastroenterology Unit, Department of Medical Sciences, University of Foggia, Foggia, Italy
| | - Ishfaq Bhat
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Shailender Singh
- Gastroenterology and Hepatology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Benjamin L. Witt
- Cytopathology Section, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Douglas G. Adler
- Division of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, USA
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Kim H, Jang KT. Pathologic interpretation of endoscopic ultrasound-guided fine needle aspiration cytology/biopsy for pancreatic lesions. J Pathol Transl Med 2020; 54:367-377. [PMID: 32854488 PMCID: PMC7483032 DOI: 10.4132/jptm.2020.07.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 07/21/2020] [Indexed: 12/23/2022] Open
Abstract
Pathologic interpretation of endoscopic ultrasound–guided fine needle aspiration (EUS-FNA) cytology/biopsy specimens is one of the most challenging tasks in cytology and surgical pathology practice, as the procedure often yields minimal amounts of diagnostic material and contains contaminants, such as blood cells and normal intestinal mucosa. EUS-FNA cytology/biopsy will nevertheless become a more popular procedure for evaluation of various pancreatic lesions because they are difficult to approach with conventional endoscopic procedures. Pathologists should understand the structural differences and limitations of EUS-FNA that make pathologic diagnosis difficult. Ancillary tests are available for differential diagnosis of EUS-FNA for various pancreatic lesions. Immunostains are the most commonly used ancillary tests, and pathologists should able to choose the necessary panel for differential diagnosis. Pathologists should review clinical history and radiologic and/or EUS findings before selecting an immunostain panel and making a pathologic diagnosis. In addition, one’s threshold of malignancy should be adjusted according to the appropriate clinical setting to avoid under-evaluation of pathologic diagnoses. Clinico-pathologic correlation is essential in pathologic evaluation of EUS-FNA for pancreatic lesions. Pathologists can reduce errors by correlating clinical and radiologic findings when evaluating EUS-FNA. Some molecular tests can be applied in differential diagnosis of pancreatic neoplastic and cystic lesions. Molecular data should be used as supportive evidence of a specific disease entity, rather than direct evidence, and should be correlated with clinico-pathologic findings to avoid errors in pathologic diagnosis.
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Affiliation(s)
- Haeryoung Kim
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kee-Taek Jang
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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21
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Pan HH, Zhou XX, Zhao F, Chen HY, Zhang Y. Diagnostic value of liquid-based cytology and smear cytology in pancreatic endoscopic ultrasound-guided fine needle aspiration: A meta-analysis. World J Clin Cases 2020; 8:3006-3020. [PMID: 32775382 PMCID: PMC7385618 DOI: 10.12998/wjcc.v8.i14.3006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/25/2020] [Accepted: 07/04/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Smear cytology (SC) using endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is the established and traditional choice for diagnosing pancreatic lesions. Liquid-based cytology (LBC) is a novel alternative cytological method, however, the comparative diagnostic efficacy of LBC remains inconclusive.
AIM To examine the diagnostic efficacy of LBC and SC for pancreatic specimens obtained through EUS-FNA via a systematic review and meta-analysis.
METHODS A systematic literature search was performed using PubMed, EMBASE, the Cochrane Library, and Web of Science. The numbers of true positives, false positives, true negatives, and false negatives for each cytological test (LBC and CS) were extracted from the included studies. The pooled sensitivity and specificity and the area under the summary receiver operating characteristic curve (AUC) were calculated, and the AUC was compared by Tukey's multiple comparisons test. The quality of the included studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies II tool.
RESULTS A total of 1656 patients in eight studies were included. The pooled sensitivity and specificity and the AUC for LBC were 0.76 (95%CI: 0.72-0.79), 1.00 (95%CI: 0.98-1.00), and 0.9174, respectively, for diagnosing pancreatic lesions. The pooled estimates for SC were as follows: Sensitivity, 0.68 (95%CI: 0.64-0.71); specificity, 0.99 (95%CI: 0.96-100.00); and AUC, 0.9714. Similarly, the corresponding values for LBC combined with SC were 0.87 (95%CI: 0.84-0.90), 0.99 (95%CI: 0.96-1.00), and 0.9894. Tukey’s multiple comparisons test was used to compare the sensitivities and AUCs of the three diagnostic methods; statistically significant differences were found between the three methods, and LBC combined with SC was superior to both LBC (P < 0.05) and SC (P < 0.05). The pooled sensitivity and AUC did not change significantly in the sensitivity analysis.
CONCLUSION LBC may be sensitive than SC in the cytological diagnosis of pancreatic lesions, however, the superior diagnostic performance of their combination emphasizes their integrated usage in the clinical evaluation of pancreatic lesions.
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Affiliation(s)
- Hang-Hai Pan
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
| | - Xin-Xin Zhou
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Fei Zhao
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
| | - Hui-Yan Chen
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Yu Zhang
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
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22
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Lewin D. Optimal EUS-guided FNA cytology preparation when rapid on-site evaluation is not available. Gastrointest Endosc 2020; 91:847-848. [PMID: 32204817 DOI: 10.1016/j.gie.2019.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022]
Affiliation(s)
- David Lewin
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
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