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Xiao MJ, Pan YT, Tan JH, Li HO, Wang HY. Computed tomography-based radiomics combined with machine learning allows differentiation between primary intestinal lymphoma and Crohn's disease. World J Gastroenterol 2024; 30:3155-3165. [PMID: 39006389 PMCID: PMC11238674 DOI: 10.3748/wjg.v30.i25.3155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/20/2024] [Accepted: 06/07/2024] [Indexed: 07/01/2024] Open
Abstract
BACKGROUND Due to similar clinical manifestations and imaging signs, differential diagnosis of primary intestinal lymphoma (PIL) and Crohn's disease (CD) is a challenge in clinical practice. AIM To investigate the ability of radiomics combined with machine learning methods to differentiate PIL from CD. METHODS We collected contrast-enhanced computed tomography (CECT) and clinical data from 120 patients form center 1. A total of 944 features were extracted single-phase images of CECT scans. Using the last absolute shrinkage and selection operator model, the best predictive radiographic features and clinical indications were screened. Data from 54 patients were collected at center 2 as an external validation set to verify the robustness of the model. The area under the receiver operating characteristic curve, accuracy, sensitivity and specificity were used for evaluation. RESULTS A total of five machine learning models were built to distinguish PIL from CD. Based on the results from the test group, most models performed well with a large area under the curve (AUC) (> 0.850) and high accuracy (> 0.900). The combined clinical and radiomics model (AUC = 1.000, accuracy = 1.000) was the best model among all models. CONCLUSION Based on machine learning, a model combining clinical data with radiologic features was constructed that can effectively differentiate PIL from CD.
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Affiliation(s)
- Meng-Jun Xiao
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong Province, China
| | - Yu-Teng Pan
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, Shandong Province, China
| | - Jia-He Tan
- University of California, Davis, CA 95616, United States
| | - Hai-Ou Li
- Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China
| | - Hai-Yan Wang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong Province, China
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Thapaliya I, Yadav J. Hypocalcaemic tetany linked to vitamin D deficiency and hypomagnesemia in primary intestinal lymphangiectasia: a literature review. Ann Med Surg (Lond) 2024; 86:2049-2057. [PMID: 38576918 PMCID: PMC10990415 DOI: 10.1097/ms9.0000000000001850] [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] [Received: 10/16/2023] [Accepted: 02/11/2024] [Indexed: 04/06/2024] Open
Abstract
Primary intestinal lymphangiectasia (PIL) is a rare disorder in children causing protein-losing enteropathy. Vitamin D deficiency and hypomagnesemia contributed to the tetany. The literature review reflects the importance of screening for these deficiencies and regular serum magnesium monitoring in PIL cases with neuromuscular or ionic abnormalities.
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Xiao M, Tan J, Li H, Qiu C, Ma Y, Wang H. Nomogram based on computed tomography images and clinical data for distinguishing between primary intestinal lymphoma and Crohn's disease: a retrospective multicenter study. Front Med (Lausanne) 2023; 10:1246861. [PMID: 37663651 PMCID: PMC10469891 DOI: 10.3389/fmed.2023.1246861] [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: 06/28/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023] Open
Abstract
Background Differential diagnosis of primary intestinal lymphoma (PIL) and Crohn's disease (CD) is a challenge in clinical diagnosis. Aims To investigate the validity of the nomogram based on clinical and computed tomography (CT) features to identify PIL and CD. Methods This study retrospectively analyzed laboratory parameters, demographic characteristics, clinical manifestations, and CT imaging features of PIL and CD patients from two centers. Univariate logistic analysis was performed for each variable, and laboratory parameter model, clinical model and imaging features model were developed separately. Finally, a nomogram was established. All models were evaluated using the area under the curve (AUC), accuracy, sensitivity, specificity, and decision curve analysis (DCA). Results This study collected data from 121 patients (PIL = 69, CD = 52) from Center 1. Data from 43 patients (PIL = 24, CD = 19) were collected at Center 2 as an external validation cohort to validate the robustness of the model. Three models and a nomogram were developed to distinguish PIL from CD. Most models performed well from the external validation cohort. The nomogram showed the best performance with an AUC of 0.921 (95% CI: 0.838-1.000) and sensitivities, specificities, and accuracies of 0.945, 0.792, and 0.860, respectively. Conclusion A nomogram combining clinical data and imaging features was constructed, which can effectively distinguish PIL from CD.
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Affiliation(s)
- Mengjun Xiao
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jiahe Tan
- Computer Science Graduate Studies, University of California, Davis, Davis, CA, United States
| | - Haiou Li
- Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chenyang Qiu
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yinchao Ma
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Haiyan Wang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Lee JS, Park SH, Choi SJ. Radiologic Review of Small Bowel Malignancies and Their Mimicking Lesions. JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY 2023; 84:110-126. [PMID: 36818705 PMCID: PMC9935952 DOI: 10.3348/jksr.2021.0168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/22/2021] [Accepted: 04/19/2022] [Indexed: 11/18/2022]
Abstract
Because of their small size, small bowel malignancies are often easily missed when radiologists read CT images, which can lead to errors in the normal small bowel due to their similar enhancement to the small bowel or non-specific enhancement. In addition, small bowel malignancies are sometimes mistaken for masses of other origins, such as the uterus, rectum, or omentum. In this article, we describe various small-bowel malignancies, their mimicking lesions and the typical and atypical features on CT imaging along with their clinical manifestations.
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Affiliation(s)
- Jong Soo Lee
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - So Hyun Park
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Seung Joon Choi
- Department of Radiology, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
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The Prevalence of Concomitant Skip Small Bowel Lesions in Crohn's Disease and Their Effects on Reoperation in Patients Undergoing Ileocolic Resection. J Gastrointest Surg 2022; 26:2330-2341. [PMID: 36006588 DOI: 10.1007/s11605-022-05436-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/27/2022] [Indexed: 01/31/2023]
Abstract
AIMS Concomitant lesions in the small intestine are common in Crohn's disease (CD). This study aimed to detect the incidence of small bowel (SB) lesions in patients undergoing surgical resection for symptomatic ileocolic disease and whether concomitant SB lesions are associated with reoperation due to recurrent CD. METHODS In this observational, historical cohort study, consecutive patients with CD undergoing primary ileocolic resection (ICR) from 2007 to 2019 were included. Clinical variables and intraoperative findings were extracted from a prospectively maintained database and analyzed by Cox proportional hazards regression models for identifying risk factors of reoperation. RESULTS Of the 404 patients included, there were 202 (50%) patients having concomitant SB lesions, and 108 of them underwent concurrent surgical intervention for SB lesions whereas 94 did not. The presence of concomitant SB lesions was a risk factor for reoperation (p = 0.041). Subgroup analysis indicated that patients with concomitant uncomplicated SB lesions left in situ had a comparable rate of reoperation (p = 0.605) whereas patients having concomitant complicated SB lesions undergoing simultaneous surgical intervention showed a higher reoperation rate (P = 0.006) when compared with those without concomitant SB lesions. Interestingly, the adverse effects of concomitant SB lesions can be reversed in the setting of postoperative anti-TNF agents [HR 0.2; 95% CI (0.04-0.9); P=0.040]. CONCLUSIONS Concomitant SB lesion(s), especially those complicated lesions, could be a risk factor for postoperative surgical recurrence in patients undergoing ICR. Active postoperative management strategies such as anti-TNF agents should be provided for these patients.
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Yang H, Zhang H, Liu W, Tan B, Guo T, Gao X, Feng R, Wu K, Cao Q, Ran Z, Liu Z, Hu N, Zhu L, Lai Y, Wang C, Han W, Qian J. Differential Diagnosis of Crohn’s Disease and Ulcerative Primary Intestinal Lymphoma: A Scoring Model Based on a Multicenter Study. Front Oncol 2022; 12:856345. [PMID: 35586498 PMCID: PMC9108901 DOI: 10.3389/fonc.2022.856345] [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: 01/17/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background Differential diagnosis of Crohn’s disease (CD) and ulcerative primary intestinal lymphoma (UPIL) is a tough problem in clinical practice. Aims Our study identified key differences between CD and UPIL patients and aimed to further establish a scoring model for differential diagnosis. Methods A total of 91 CD and 50 UPIL patients from 9 tertiary inflammatory bowel disease centers were included. Univariate and multivariate analyses were used to determine significant markers for differentiating CD and UPIL. A differential scoring model was established by logistic regression analysis. Results The differential model was based on clinical symptoms, endoscopic and imaging features that were assigned different scores: intestinal bleeding (−2 points), extraintestinal manifestation (2 points), segmental lesions (1 point), cobblestone sign (2 points), homogeneous enhancement (−1 point), mild enhancement (−1 point), engorged vasa recta (1 point). A total score of ≥1 point indicates CD, otherwise UPIL was indicated. This model produced an accuracy of 83.66% and an area under the ROC curve of 0.947. The area under the ROC curve for validation using the 10-fold validation method was 0.901. Conclusion This study provided a convenient and useful model to differentiate CD from UPIL.
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Affiliation(s)
- Hong Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huimin Zhang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Liu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bei Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Guo
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiang Gao
- Department of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Rui Feng
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi’an, China
| | - Qian Cao
- Department of Gastroenterology, Sir Run Run Shaw Hospital, College of Medicine Zhejiang University, Hangzhou, China
| | - Zhihua Ran
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Shanghai Inflammatory Bowel Disease Research Center; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhanju Liu
- Department of Gastroenterology, The Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Naizhong Hu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Liangru Zhu
- Department of Gastroenterology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yamin Lai
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Congling Wang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Han
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, School of Basic Medicine, Beijing, China
- *Correspondence: Jiaming Qian, ; Wei Han,
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Jiaming Qian, ; Wei Han,
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Mantle cell lymphoma simulating inflammatory bowel disease. Acta Gastroenterol Belg 2021; 84:125-127. [PMID: 33639703 DOI: 10.51821/84.1.852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a case of colorectal involvement by a mantle cell lymphoma (MCL) that had been considered before as inflammatory bowel disease. Diagnosis of low-grade MCL can be difficult, and here we highlight the importance of thorough histopathological examination in case of supposed inflammatory bowel disease that does not react to therapy.
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Potential MR Enterography Features to Differentiate Primary Small Intestinal Lymphoma From Crohn Disease. AJR Am J Roentgenol 2020; 215:864-873. [PMID: 32755202 DOI: 10.2214/ajr.19.22158] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE. The purpose of this study was to assess the MR enterographic features of primary small intestinal lymphoma (PSIL) and compare them with active Crohn disease (CD) presenting with severe (≥ 10 mm) mural thickening of the small bowel. MATERIALS AND METHODS. This retrospective study included 15 patients with pathologically proven PSIL and 15 patients with active inflammatory CD with severe mural thickening. Various morphologic, enhancement, and diffusion parameters were compared between the two groups at MR enterography. The ratios of the upstream to involved luminal diameter and mural thickness to luminal diameter in the involved segment were calculated. An attempt was made to define a predictive model (morphologic score) for discriminating PSIL from CD with severe mural thickening. RESULTS. Patients with PSIL were more likely than those with CD to have unifocal disease (66.7% vs 20.0%, p = 0.025), circumferential involvement (86.7% vs 26.7%, p < 0.001), luminal dilatation (60.0% vs 7.0%, p = 0.005), and an attenuated fold pattern (53.3% vs none, p < 0.001). They were less likely to have serosal surface involvement (40.0% vs 100%, p = 0.001) and mesenteric fat infiltration (33.3% vs 100%, p < 0.001). Median upstream to involved luminal diameter ratio (1.5 vs 9.6, p < 0.001) and mural thickness to involved luminal diameter ratio (1.1 vs 4.3, p = 0.044) were significantly lower in patients with PSIL than in those with CD with severe mural thickening. No significant difference was observed in enhancement and diffusion measures. Morphologic score was based on the presence of luminal dilatation, unifocal involvement, mesenteric fat infiltration, and luminal stricture, yielding accuracy of 98% for differentiation between PSIL and CD with severe mural thickening. CONCLUSION. Morphologic features seen at MR enterography rather than enhancement or diffusion parameters may be valuable for differentiation of PSIL from active CD with severe mural thickening with significantly lower ratios of upstream to involved luminal diameter and mural thickness to involved luminal diameter in PSIL.
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Stundiene I, Maksimaityte V, Liakina V, Valantinas J. Mucosa-associated lymphoid tissue lymphoma simulating Crohn’s disease: A case report. World J Clin Cases 2020; 8:1454-1462. [PMID: 32368537 PMCID: PMC7190957 DOI: 10.12998/wjcc.v8.i8.1454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/12/2020] [Accepted: 04/04/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Differential diagnosis between extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue and inflammatory bowel disease is mainly based on histopathologic evaluation of intestinal biopsies, although there is no single definitive diagnostic investigation and that circumstance can lead to misdiagnosis in particular cases. Herein we present a rare, ulcerative form of marginal zone lymphoma which mimics the Crohn’s disease (CD) of upper digestive tract.
CASE SUMMARY A 50-year-old man was presented with recurrent episodes of malaise and melena also weight loss. Enteroscopy of the small bowel demonstrated an ulcer in the jejunum. Microscopically, biopsies showed lymphoplasmacytic infiltrate. Diagnosis of CD was made. Primary treatment consisted of prednisone and azathioprine and was followed by azathioprine 100 mg per day with good clinical response in the following 2 years until relapse. At this time the results of endoscopic biopsies derived from proximal wall of stomach revealed Helicobacter pylori-negative marginal zone lymphoma of the gastric fundus. Immunophenotyping confirmed atypical CD20-positive cell population. Based on these biopsies, marginal zone lymphoma of mucosa-associated lymphoid tissue was diagnosed. Unfortunately, the contact with the patient was lost until one year later he was hospitalized with nausea, vomiting and severe pain because of gastrointestinal perforation. Four months later after laparotomy, the patient was treated with a course of chemotherapy. Complete remission was observed following 6 cycles of treatment.
CONCLUSION This case report highlights the clinical relevance of knowledge and awareness of marginal zone lymphoma simulating CD.
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Affiliation(s)
- Ieva Stundiene
- Centre of Hepatology, Gastroenterology and Dietetics, Faculty of Medicine, Vilnius University, Vilnius 03101, Lithuania
| | - Vaidota Maksimaityte
- Centre of Hepatology, Gastroenterology and Dietetics, Faculty of Medicine, Vilnius University, Vilnius 03101, Lithuania
| | - Valentina Liakina
- Centre of Hepatology, Gastroenterology and Dietetics, Faculty of Medicine, Vilnius University, Vilnius 03101, Lithuania
- Department of Chemistry and Bioengineering, Faculty of Fundamental Science, Vilnius Gediminas Technical University, Vilnius 10223, Lithuania
- Clinic of Gastroenterology, Nephrourology and Surgery, Faculty of Medicine, Vilnius University, Vilnius 03101, Lithuania
| | - Jonas Valantinas
- Centre of Hepatology, Gastroenterology and Dietetics, Faculty of Medicine, Vilnius University, Vilnius 03101, Lithuania
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Hollie N, Asakrah S. MALT lymphoma of the colon: a clinicopathological review. J Clin Pathol 2020; 73:378-383. [PMID: 32034054 DOI: 10.1136/jclinpath-2019-206377] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 02/06/2023]
Abstract
Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) occurs in approximately 9% of non-Hodgkin B cell lymphoma. However, it occurs only rarely within the colon. The presentation is often asymptomatic, and can have multiple endoscopic appearances, including a single or multinodular polypoid lesion. Furthermore, small biopsies can make histological evaluation challenging. The 2016 WHO classification update includes many molecular features of entities and expands the differential diagnosis of lymphoid lesions of the colon. In addition to immunohistochemistry, molecular methods may be tempting to use for small difficult cases. Furthermore, treatment approaches are varied for this entity, and not well studied. Therefore, an updated review on MALT lymphoma of the colon is needed.
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Affiliation(s)
- Norris Hollie
- Pathology, Beth Israel Lahey Health, Boston, Massachusetts, USA
| | - Saja Asakrah
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia
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Gkiouras K, Grammatikopoulou MG, Theodoridis X, Pagkalidou E, Chatzikyriakou E, Apostolidou AG, Rigopoulou EI, Sakkas LI, Bogdanos DP. Diagnostic and clinical significance of antigen-specific pancreatic antibodies in inflammatory bowel diseases: A meta-analysis. World J Gastroenterol 2020; 26:246-265. [PMID: 31988587 PMCID: PMC6962435 DOI: 10.3748/wjg.v26.i2.246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/19/2019] [Accepted: 01/02/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Non-invasive criteria are needed for Crohn's disease (CD) diagnosis, with several biomarkers being tested. Results of individual diagnostic test accuracy studies assessing the diagnostic value of pancreatic autoantibodies-to-glycoprotein-2 (anti-GP2) tests for the diagnosis of CD appear promising. AIM To systematically review and meta-analyze evidence on the diagnostic accuracy of anti-GP2 tests in patients with suspected/confirmed CD. METHODS An electronic search was conducted on PubMed, Cochrane-CENTRAL and grey literature (CRD42019125947). The structured research question in PICPTR format was "Population" including patients with symptoms akin to CD, the "Index test" being anti-GP2 testing, the "Comparator" involved standard CD diagnosis, the "Purpose of test" being diagnostic, "Target disorder" was CD, and the "Reference standard" included standard clinical, radiological, endoscopical, and histological CD diagnostic criteria. Quality was assessed with the Quality Assessment of Diagnostic Accuracy Studies-2 tool and hierarchical models were employed to synthesize the data. RESULTS Out of 722 studies retrieved, 15 were meta-analyzed. Thirteen studies had industry-related conflicts-of-interest, and most included healthy donors as controls (spectrum bias). For the combination of IgA and/or IgG anti-GP2 test, the summary sensitivity was 20% (95% confidence interval: 10%-29%) at a median specificity of 97%. If the test was applied in 10000 suspected patients, 9669 would be true negatives and in 26, the diagnosis would be missed. In this hypothetical cohort, the anti-GP2 would fail to produce a diagnosis for 81.3% of the positive cases. Low summary points of sensitivity and high specificity were estimated for the IgG or IgA anti-GP2 test. Analogous results were observed when the analyses were restricted using specific cut-offs, or when ulcerative colitis patients were used as comparators. CONCLUSION Anti-GP2 tests demonstrate low sensitivity and high specificity. These results indicate that caution is required before relying on its diagnostic value. Additionally, the need for improving the methodology of diagnostic test accuracy studies is evident.
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Affiliation(s)
- Konstantinos Gkiouras
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR41110, Greece
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
| | - Maria G Grammatikopoulou
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR41110, Greece
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Sindos Campus, Thessaloniki GR57400, Greece
| | - Xenophon Theodoridis
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR41110, Greece
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
| | - Eirini Pagkalidou
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
| | - Evangelia Chatzikyriakou
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
- Laboratory of Clinical Neurophysiology, AHEPA University Hospital, Faculty of Medicine, Aristotle University of Thessaloniki, University Campus, Thessaloniki GR54124, Greece
| | - Anna G Apostolidou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Sindos Campus, Thessaloniki GR57400, Greece
| | - Eirini I Rigopoulou
- Department of Medicine and Research Laboratory of Internal Medicine, University Hospital of Larissa, Biopolis, Larissa GR41110, Greece
| | - Lazaros I Sakkas
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR41110, Greece
| | - Dimitrios Petrou Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR41110, Greece
- Division of Transplantation, Immunology and Mucosal Biology, MRC Centre for Transplantation, King's College London Medical School, London GR41110, United Kingdom
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Zhao RJ, Zhang CL, Zhang Y, Sun XY, Ni YH, Luo YP, Li J, Qian JM. Enteral fistula as initial manifestation of primary intestinal lymphoma. Chin Med J (Engl) 2020; 133:101-102. [PMID: 31923114 PMCID: PMC7028188 DOI: 10.1097/cm9.0000000000000598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 02/05/2023] Open
Affiliation(s)
- Rui-Jie Zhao
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Chun-Lan Zhang
- Department of Hematology, West China Hospital, Chengdu, Sichuan 610047, China
| | - Yan Zhang
- Department of Hematology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xi-Yu Sun
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yue-Hui Ni
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ya-Ping Luo
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ji Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jia-Ming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Sato K, Suga T, Hirayama A, Daikuhara S, Uehara T, Tanaka E. Diffuse large B-cell lymphoma of the colon and rectum in a patient with colonic Crohn's disease treated with infliximab and azathioprine. Clin J Gastroenterol 2019; 13:1-5. [PMID: 31350718 DOI: 10.1007/s12328-019-01026-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/18/2019] [Indexed: 12/01/2022]
Abstract
A 52-year-old woman was treated for colorectal diffuse large B-cell lymphoma (DLBCL) after a prolonged treatment period of azathioprine (AZA) and infliximab (IFX) for Crohn's disease (CD). She had been diagnosed as having colonic CD at the age of 24 years and received AZA from age 29. IFX was added at 47 years of age. She experienced massive hematochezia and anal pain at the age of 52 years and was transferred to our hospital. Endoscopic examination revealed a deep rectal ulcer with arterial bleeding. A stoma constructed at the transverse colon for refractory CD relieved her symptoms. Four months later, computed tomography showed increased thickness of the rectal wall. DLBCL was diagnosed from biopsy specimens of the rectum. Treatment with 6 courses of rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisolone along with additional radiation therapy for remnant rectal lymphoma has resulted in complete remission for over 5 years. Although colorectal malignant lymphoma coexisting with active CD was rare and the lesions were difficult to detect, intensive therapy for CD helped in the diagnosis and successful treatment of the patient.
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Affiliation(s)
- Koichi Sato
- Division of Gastroenterology and Hepatology, Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tomoaki Suga
- Endoscopic Examination Center, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, 390-8621, Japan.
| | - Atsuhiro Hirayama
- Division of Gastroenterology and Hepatology, Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Seiichi Daikuhara
- Division of Gastroenterology and Hepatology, Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Eiji Tanaka
- Division of Gastroenterology and Hepatology, Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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Analysis of Phenotypic Variables and Differentiation Between Untypical Crohn's Disease and Untypical Intestinal Tuberculosis. Dig Dis Sci 2019; 64:1967-1975. [PMID: 30725295 DOI: 10.1007/s10620-019-05491-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/22/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND The differentiation between untypical intestinal tuberculosis (UITB) and untypical Crohn's disease (UCD) is a challenge. AIMS To analyze phenotypic variables and propose a novel prediction model for differential diagnosis of two conditions. METHODS A total of 192 patients were prospectively enrolled. The clinical, laboratory, endoscopic, and radiological features were investigated and subjected to univariable and multivariable analyses. The final prediction model for differentiation between UCD and UITB was developed by logistic regression analysis and Fisher discriminant analysis on the training set. The same discriminant function was tested on the validation set. RESULTS Twenty-five candidates were selected from 52 phenotypic variables of typical Crohn's disease (TCD), UCD, and UITB patients. UCD's variables overlapped with both TCD and UITB. The percentages of tuberculosis history, positive PPD, and positive T-SPOT result in UCD were all significantly higher than that in TCD (11.6% vs. 0.0%, 27.9% vs. 0.0%, 25.6% vs. 4.5%, respectively, P < 0.05). The regression equations and Fisher discriminant function for discrimination between UCD and UITB were developed. In the training data, the area under the receiver operating characteristic of equations was 0.834, 0.69, and 0.648 in the clinical-laboratory, endoscopic, and radiological model, respectively. The accuracy of Fisher discriminant function for discrimination was 86% in UCD and 73% in UITB in the validation data. CONCLUSIONS Phenotypes of UCD patients in TB-endemic countries may be associated with TB infection history. Fisher discriminant analysis is a good choice to differentiate UCD from UITB, which is worthy of verification in clinical practice.
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Comparison between Intestinal Behçet's Disease and Crohn's Disease in Characteristics of Symptom, Endoscopy, and Radiology. Gastroenterol Res Pract 2017. [PMID: 28642788 PMCID: PMC5470017 DOI: 10.1155/2017/3918746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim To evaluate different parameters in differentiating intestinal BD from CD. Methods The medical records of inpatients with intestinal BD and CD were retrospectively reviewed. The univariate value of different parameters was analyzed, respectively. A differentiation model was established by pooling all valuable parameters together. Diagnostic efficacy was evaluated, and a receiver operating curve (ROC) was plotted. Results Forty-two BD patients and ninety-seven CD patients were reviewed. Demographic and clinical parameters that showed significant value included diarrhea, fever, perianal disease, oral ulcers, genital ulcers, skin lesions, and musculoskeletal lesions. Endoscopic parameters reaching clinical significance included multiple-site lesions, lesions confined to the ileocecal region, longitudinal ulcers, round or oval ulcers, punch-out ulcers, ulcers with discrete margin, ulcer size > 2 cm, stricture of bowel, and anorectal involvement. Radiologic parameters aiding the differentiation included involvement segments ≤ 3, asymmetrical pattern of involvement, intraluminal pseudopolyp formation, target sign, stricture with proximal dilation, comb sign, and fistula. The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of the differentiation model were 90.5%, 93.8%, 92.8%, 86.4%, and 95.8%, respectively. The cutoff value was 0.5 while the area under the ROC curve was 0.981. Conclusion The differentiation model that integrated the various parameters together may yield a high diagnostic efficacy in the differential diagnosis between intestinal BD and CD.
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Păunică I. Diagnostic and treatment difficulties in Crohn’s disease. JOURNAL OF CLINICAL AND INVESTIGATIVE SURGERY 2016. [DOI: 10.25083/2559.5555.12.713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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