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Cassius De Linval Q, Barat M, Aissaoui M, Talabard MP, Martin C, Malamut G, Canniff E, Soyer P, Revel MP, Chassagnon G. Imaging findings of thoracic manifestations of Crohn's disease and ulcerative colitis. Insights Imaging 2024; 15:197. [PMID: 39112694 PMCID: PMC11306860 DOI: 10.1186/s13244-024-01742-4] [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: 01/30/2024] [Accepted: 06/16/2024] [Indexed: 08/10/2024] Open
Abstract
Thoracic manifestations of inflammatory bowel disease (IBD) are rare, occurring in less than 1% of patients. Unlike most other extra-intestinal manifestations, they predominate in patients with ulcerative colitis rather than in Crohn's disease. In most patients, thoracic involvement follows the onset of IBD by several years. However, thoracic involvement may also occur synchronously or even precede the onset of digestive symptoms. The thoracic manifestations of IBD include airway involvement and parenchymal lung abnormalities. Airways are the most frequent anatomical site for thoracic involvement in IBD. Airway manifestations usually develop several years after the onset of intestinal manifestations, preferentially when the latter are stable or in remission. Airway manifestations include bronchial wall thickening, bronchiectasis, small airway disease, and tracheal wall thickening. Parenchymal lung abnormalities are less prevalent in IBD and include organizing pneumonia, necrobiotic nodules, noncaseating granulomatous nodules, drug-induced pneumonia, and rarely interstitial lung diseases. The differential diagnosis between organizing pneumonia, necrobiotic nodules, and noncaseating granulomatous nodules is difficult and usually requires histopathological analysis for a definite diagnosis. Radiologists play a key role in the detection of thoracic manifestations of Crohn's disease and ulcerative colitis and, therefore, need to be familiar with their imaging findings. This article aims to offer an overview of the imaging findings of thoracic manifestations in patients with Crohn's disease or ulcerative colitis. CRITICAL RELEVANCE STATEMENT: Thoracic manifestations of Crohn's disease and ulcerative colitis include tracheal involvement, bronchiectasis, small airway disease, and parenchymal lung abnormalities such as organizing pneumonia and necrobiotic nodules. These rare manifestations (< 1% of patients) more often affect patients with ulcerative colitis. KEY POINTS: Thoracic manifestations of inflammatory bowel disease are rare, occurring in less than 1% of patients. Thoracic manifestations are more frequent in patients with ulcerative colitis than Crohn's disease. Bronchial disease is the most frequent thoracic manifestation of Crohn's disease and ulcerative colitis.
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Affiliation(s)
- Quentin Cassius De Linval
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
| | - Maxime Barat
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
| | - Mathilde Aissaoui
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
| | - Marie-Pauline Talabard
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
| | - Clémence Martin
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
- Respiratory Medicine and Cystic Fibrosis National Reference Center, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
| | - Georgia Malamut
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
- Department of Gastroenterology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
| | - Emma Canniff
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
| | - Philippe Soyer
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
| | - Marie-Pierre Revel
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France
| | - Guillaume Chassagnon
- Department of Radiology, Hôpital Cochin, AP-HP.Centre Université Paris Cité, 27 rue du Faubourg Saint-Jacques, 75014, Paris, France.
- Université Paris Cité, 85 Boulevard Saint-Germain, 75006, Paris, France.
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Can Ultrasound and Contrast-Enhanced Ultrasound Help Differentiate between Subpleural Focal Organizing Pneumonia and Primary Lung Malignancy? Diagnostics (Basel) 2022; 12:diagnostics12092074. [PMID: 36140476 PMCID: PMC9497473 DOI: 10.3390/diagnostics12092074] [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: 07/28/2022] [Revised: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 11/20/2022] Open
Abstract
Background: Subpleural focal organizing pneumonia (FOP) and primary lung malignancy (PLM) are usually confused. The aim of this study was to explore the value of ultrasound (US) and contrast-enhanced ultrasound (CEUS) in the differential diagnosis of FOP and PLM. Methods: A total of 23 patients (mean age: 64.57 ± 11.86 years) with FOP and 100 (mean age: 66.29 ± 11.05 years) with subpleural lesions diagnosed as PLM, confirmed by pathological diagnosis and clinical follow-up, were retrospectively enrolled. The largest lesion diameter, angle between the lesion border and thoracic wall, air bronchial sign, internal blood supply, blood supply form, and pleural effusion examined using conventional US were retrospectively analyzed. The indicators of CEUS included the arrival time of contrast agent in the lesion, lesion−lung arrival time difference, degree of enhancement, distribution uniformity of contrast medium, presence of non-enhancing region, and arterial filling mode in the lesion. A p < 0.05 was considered statistically significant. Results: Presence of air bronchial sign (odds ratio [OR] = 6.18, p = 0.025), acute angle between the lesion border and thoracic wall (OR = 7.124, p = 0.033), and homogeneous enhancement (OR = 35.26, p = 0.01) showed predictive value for the diagnosis of FOP. According to the results of the logistic regression analysis, the area under the receiver operating curve of the above features combined was 0.960, and the sensitivity and specificity were 95.0% and 82.6%, respectively. Conclusions: US combined with CEUS has the potential to differentiate between FOP and PLM.
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Ünal E, Arslan S, Aghayeva G, Sarıkaya Y, Çiftçi T, Önder S, Akıncı D, Akhan O. Rare pulmonary tumors and carcinoma mimickers; experience from an interventional radiology unit with radiologic-pathologic correlation-A pictoral essay. Curr Med Imaging 2021; 17:1183-1190. [PMID: 33881972 DOI: 10.2174/1573405617666210420105624] [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: 12/25/2020] [Revised: 02/28/2021] [Accepted: 03/08/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Although imaging findings along with patients' clinical history may give clue for the etiology of a pulmonary lesion, the differentiation of benign pulmonary lesions from lung cancer could be challenging. OBJECTIVE The aim of this review article was to increase the awareness of the carcinoma mimicking lung lesions. METHODS This paper was designed to illustrate rare pulmonary tumors and carcinoma mimickers with emphasis on radiologic-pathologic correlation. Pitfalls encountered on CT images and also false positivity of PET-CT scans were also presented. CONCLUSION Several benign pulmonary lesions may grow in size on follow-up and some may show pathologic FDG (18F-fluorodeoxyglucose) uptake, which makes them indistinguishable from lung carcinoma by imaging. In addition, some slow-growing malignant lesions, such as carcinoid, may be false-negative on PET/CT scans.
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Affiliation(s)
- Emre Ünal
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
| | - Sevtap Arslan
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
| | - Gulnar Aghayeva
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
| | - Yasin Sarıkaya
- Department of Radiology, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Türkmen Çiftçi
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
| | - Sevgen Önder
- Hacettepe University, School of Medicine, Department of Pathology Ankara, Turkey
| | - Devrim Akıncı
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
| | - Okan Akhan
- Hacettepe University, School of Medicine, Department of Radiology Ankara, Turkey
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Katal S, Amini H, Gholamrezanezhad A. PET in the diagnostic management of infectious/inflammatory pulmonary pathologies: a revisit in the era of COVID-19. Nucl Med Commun 2021; 42:3-8. [PMID: 32991395 PMCID: PMC7720808 DOI: 10.1097/mnm.0000000000001299] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/01/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Sanaz Katal
- Department of Diagnostic Radiology, Keck School of Medicine, University of Southern California (USC), Los Angles, California, USA
| | - Hamidreza Amini
- Department of Diagnostic Radiology, Keck School of Medicine, University of Southern California (USC), Los Angles, California, USA
| | - Ali Gholamrezanezhad
- Department of Diagnostic Radiology, Keck School of Medicine, University of Southern California (USC), Los Angles, California, USA
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Li Y, Behr S. Acute Findings on FDG PET/CT: Key Imaging Features and How to Differentiate Them from Malignancy. CURRENT RADIOLOGY REPORTS 2020; 8:22. [PMID: 32953250 PMCID: PMC7486592 DOI: 10.1007/s40134-020-00367-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW To review acute findings commonly encountered during routine clinical FDG PET/CT studies and present key imaging features to differentiate them from malignant counterparts. RECENT FINDINGS FDG PET/CT is extensively used in routine clinical practice for oncology patients. Incidental acute findings in patients undergoing FDG PET/CT are increasingly common, and awareness of these findings and their mimics are important in delivering a clinically relevant and accurate radiological report for directing further management. SUMMARY This article will review examples of common acute findings encountered during routine FDG PET/CT scans, compare them against examples of FDG-avid malignancy that can mimic these findings and emphasize key imaging findings to differentiate acute findings from their malignant mimics.
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Affiliation(s)
- Yan Li
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, San Francisco, CA 94143 USA
| | - Spencer Behr
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, San Francisco, CA 94143 USA
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Rahman WT, Wale DJ, Viglianti BL, Townsend DM, Manganaro MS, Gross MD, Wong KK, Rubello D. The impact of infection and inflammation in oncologic 18F-FDG PET/CT imaging. Biomed Pharmacother 2019; 117:109168. [PMID: 31334700 PMCID: PMC7104808 DOI: 10.1016/j.biopha.2019.109168] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/22/2019] [Accepted: 06/25/2019] [Indexed: 12/30/2022] Open
Abstract
Sites of infection and inflammation can be misleading in oncology PET/CT imaging because these areas commonly show 18F-FDG activity. Caution in the interpretation must be taken to avoid the misdiagnosis of malignancy. Utilization of both CT findings as well as patient history can help differentiate benign infectious and inflammatory processes from malignancy, although occasionally additional work-up may be required. This article discusses the mechanism of 18F-FDG uptake in infection and inflammation with illustrative examples.
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Affiliation(s)
- W Tania Rahman
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Daniel J Wale
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA.
| | - Benjamin L Viglianti
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA
| | - Danyelle M Townsend
- Division of Drug Discovery and Pharmaceutical Sciences, Medical University of South Carolina, USA
| | - Matthew S Manganaro
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Milton D Gross
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA
| | - Ka Kit Wong
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Domenico Rubello
- Department of Nuclear Medicine, Radiology, Neuroradiology, Interventional Radiology, Pathology, Santa Maria della Misericordia Hospital, Rovigo, Italy.
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Van de Kerkhove C, De Wever W, Verbeken EK, Deroose C, Nackaerts K. An unusual presentation of a more common disease entity. Breathe (Sheff) 2018. [PMID: 29515668 PMCID: PMC5831344 DOI: 10.1183/20734735.013417] [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] [Indexed: 11/05/2022] Open
Abstract
A 66-year-old, male patient with a 10-pack-year history of smoking was referred to the internal medicine consultation because of a 4-week history of fatigue, weakness, intermittent low-grade fever, appetite and weight loss, and a mild dry cough. His previous history was unremarkable and his physical examination was normal. Routine laboratory screening revealed leukocytosis (11.08×109 leukocytes per L), elevated C-reactive protein (72.1 mg⋅L−1) and erythrocyte sedimentation rate 57 mm⋅h−1. Analyses for rheumatoid factor, antinuclear antibodies, and cytoplasmic and perinuclear anti-neutrophil cytoplasmic antibodies were all negative. Pulmonary function tests (static and dynamic volumes, flow–volume curve, and lung diffusion capacity) were within the predictive values. Chest radiography demonstrated bilateral hilar enlargement. The patient subsequently underwent a computed tomography (CT) scan of the chest (figure 1). Beware unusual presentations of more common disease entities, as in this interactive case reporthttp://ow.ly/qj7f30eVFsp
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Affiliation(s)
| | - Walter De Wever
- Radiology, Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | | | | | - Kris Nackaerts
- Respiratory Oncology, University Hospital Gasthuisberg, Leuven, Belgium
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Petitpierre N, Beigelman C, Letovanec I, Lazor R. [Cryptogenic organizing pneumonia]. Rev Mal Respir 2016; 33:703-717. [PMID: 26857200 DOI: 10.1016/j.rmr.2015.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 08/21/2015] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Organizing pneumonia is a particular type of inflammatory reaction of the lung which gives rise to a clinico-pathological syndrome. It is called "secondary" when a cause such as an infection, a drug toxicity, or a connective tissue disease can be identified, or "cryptogenic" when no cause is identified. The clinical picture is usually characterized by the subacute onset of fever, fatigue, cough and dyspnea, with multiple subpleural areas of consolidation on thoracic imaging. STATE OF THE ART Organizing pneumonia is characterised by the presence of buds of endoalveolar connective tissue. These result from an injury to the alveolar epithelium, followed by the deposition of fibrin in the alveolar spaces, and the migration of fibroblasts which produce a myxoid endoalveolar matrix. A remarkable feature of organizing pneumonia is the complete disappearance of these endoalveolar buds with corticosteroid treatment, in sharp contrast with what is seen in pulmonary fibrosis. The clinical response to corticosteroids is usually prompt and excellent. Relapses are frequent but usually benign. PERSPECTIVES AND CONCLUSION As the clinical, imaging and pathological characteristics of organizing pneumonia are now well established, many questions remain unanswered, such as the mechanisms involved in the complete reversibility of the pulmonary lesions, and the role of steroid-sparing treatments such as immunomodulatory macrolides.
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Affiliation(s)
- N Petitpierre
- Unité des pneumopathies interstitielles et maladies pulmonaires rares, service de pneumologie, centre hospitalier universitaire vaudois (CHUV), 46, rue du Bugnon, 1011 Lausanne, Suisse
| | - C Beigelman
- Service de radiodiagnostic et de radiologie interventionnelle, centre hospitalier universitaire vaudois (CHUV), Lausanne, Suisse
| | - I Letovanec
- Institut universitaire de pathologie, centre hospitalier universitaire vaudois (CHUV), Lausanne, Suisse
| | - R Lazor
- Unité des pneumopathies interstitielles et maladies pulmonaires rares, service de pneumologie, centre hospitalier universitaire vaudois (CHUV), 46, rue du Bugnon, 1011 Lausanne, Suisse; Centre national de référence des maladies pulmonaires rares, hôpital Louis-Pradel, hospices civils de Lyon, 69000 Lyon, France.
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