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The SARS-COV 2 infection known as COVID-19 (Coronavirus Disease 2019) continues to affect the world population with successive epidemic waves. Among the many manifestations of this systemic disease, pulmonary involvement is one of the most frequent and serious with considerable mortality in patients at risk. Since the scanner has established itself as an effective tool in the diagnosis and evaluation of SARS-COV 2 pneumonia, radiologists need to know how to use it optimally in the management of this pathology. In this iconographic review, we recall the histopathological bases of SARS-COV 2 pneumonia and their translation into CT lesions. We also present the different typical and atypical CT aspects of this pathology as well as the associated lesions and the differential diagnoses that can be evoked.


L’infection à SARS-COV 2 baptisée COVID-19 (Coronavirus Disease 2019) continue d’affecter la population mondiale avec des vagues épidémiques successives. Parmi les nombreuses manifestations de cette maladie systémique, l’atteinte pulmonaire est l’une des plus fréquentes et des plus graves avec une mortalité considérable chez des patients à risque. Le scanner s’étant imposé comme un outil efficace dans le diagnostic et l’évaluation de la pneumonie à SARS-COV 2, il est nécessaire que les radiologues sachent l’utiliser de manière optimale dans la prise en charge de cette pathologie. Dans cette revue iconographique, nous rappelons les bases histopathologiques de la pneumonie à SARS-COV 2 et leur traduction en lésions scanographiques. Nous exposons, par ailleurs, les différents aspects scanographiques typiques et atypiques de cette pathologie ainsi que les lésions associées et les diagnostics différentiels qui peuvent être évoqués.

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Administrateur- JAIM, MOULION TAPOUH Jean Roger, BALKISSOU ADAMOU Dodo, ONANA Yannick Richard, DONGMO FOMEKONG Sylviane, LAAH NJOYO Sylvain, & MOIFO Boniface. (2022). Le scanner thoracique dans l’exploration de la pneumonie à COVID-19 : revue iconographique et bases histopathologiques des lésions. Journal Africain d’Imagerie Médicale (J Afr Imag Méd)., 13(4).


  1. 1. World Health Organization. Overview of coronavirus (COVID-19). [cited 2020 Aug 15]. Available from:
  2. 2. Centre de Coordination des Opérations d’Urgence de Santé Publique), MINSANTE (Ministère de la Santé Publique). Cameroun. Rapport de situation COVID-19. Période du 07 au 13/10/2021.
  3. 3. Tsang HF, Chan LWC, Cho WCS, Yu ACS, Yim AKY, Chan AKC, et al. An update on COVID-19 pandemic: the epidemiology, pathogenesis, prevention and treatment strategies. Expert Rev Anti Infect Ther. 2021;19:877–88.
  4. 4. Brogna B, Bignardi E, Brogna C, Volpe M, Lombardi G, Rosa A, et al. A Pictorial Review of the Role of Imaging in the Detection, Management, Histopathological Correlations, and Complications of COVID-19 Pneumonia. Diagn Basel Switz. 2021;11:437.
  5. 5. Kovács A, Palásti P, Veréb D, Bozsik B, Palkó A, Kincses ZT. The sensitivity and specificity of chest CT in the diagnosis of COVID-19. Eur Radiol. 2021;31:2819–24.
  6. 6. Krdzalic J, de Jaegere TMH, Kwee RM. Diagnostic performance of chest CT in screening patients with suspected COVID-19 infection in a Western population. Br J Radiol. 2020;93:20200643.
  7. 7. Nagpal P, Narayanasamy S, Vidholia A, Guo J, Shin KM, Lee CH, et al. Imaging of COVID-19 pneumonia: Patterns, pathogenesis, and advances. Br J Radiol. 2020;93:20200538.
  8. 8. Bayraktaroğlu S, Çinkooğlu A, Ceylan N, Savaş R. The novel coronavirus pneumonia (COVID-19): a pictorial review of chest CT features. Diagn Interv Radiol. 2021;27:188–94.
  9. 9. Ceylan N, Çinkooğlu A, Bayraktaroğlu S, Savaş R. Atypical chest CT findings of COVID-19 pneumonia: a pictorial review. Diagn Interv Radiol Ank Turk. 2021;27:344–9.
  10. 10. Jain A, Patankar S, Kale S, Bairy A. Imaging of coronavirus disease (COVID-19): a pictorial review. Pol J Radiol. 2021;86:4–18.
  11. 11. Pan F, Ye T, Sun P, Gui S, Liang B, Li L, et al. Time Course of Lung Changes at Chest CT during Recovery from Coronavirus Disease 2019 (COVID-19). Radiology. 2020;295:715–21.
  12. 12. Simpson S, Kay FU, Abbara S, Bhalla S, Chung JH, Chung M, et al. Radiological Society of North America Expert Consensus Statement on Reporting Chest CT Findings Related to COVID-19. Endorsed by the Society of Thoracic Radiology, the American College of Radiology, and RSNA - Secondary Publication. J Thorac Imaging. 2020;35:219–27.
  13. 13. Ben Romdhane H, Brillet P-Y, Brauner M. Syndrome interstitiel. Feuill Radiol. 2013;53:335–52.
  14. 14. Hansell DM, Bankier AA, MacMahon H, McLoud TC, Müller NL, Remy J. Fleischner Society: Glossary of Terms for Thoracic Imaging1. Radiology. 2008.
  15. 15. Brun A. Syndrome alvéolaire. EMC Radiol Imag Médicale-Cardiovasc-Cervicale. 2014;9:1-9 [Article 32-360-A-10].
  16. 16. Lodé B, Jalaber C, Orcel T, Morcet-Delattre T, Crespin N, Voisin S, et al. Imagerie de la pneumonie COVID-19. J Imag Diagn Interv. 2020;:S2543343120300774.
  17. 17. Bao C, Liu X, Zhang H, Li Y, Liu J. Coronavirus Disease 2019 (COVID-19) CT Findings: A Systematic Review and Meta-analysis. J Am Coll Radiol JACR. 2020;17:701–9.
  18. 18. Zarifian A, Ghasemi Nour M, Akhavan Rezayat A, Rahimzadeh Oskooei R, Abbasi B, Sadeghi R. Chest CT findings of coronavirus disease 2019 (COVID-19): A comprehensive meta-analysis of 9907 confirmed patients. Clin Imaging. 2021;70:101–10.
  19. 19. Zhu J, Zhong Z, Li H, Ji P, Pang J, Li B, et al. CT imaging features of 4121 patients with COVID-19: A meta-analysis. J Med Virol. 2020;92:891–902.
  20. 20. Prokop M, van Everdingen W, van Rees Vellinga T, Quarles van Ufford H, Stöger L, Beenen L, et al. CO-RADS: A Categorical CT Assessment Scheme for Patients Suspected of Having COVID-19-Definition and Evaluation. Radiology. 2020;296:E97–104.
  21. 21. Ye Z, Zhang Y, Wang Y, Huang Z, Song B. Chest CT manifestations of new coronavirus disease 2019 (COVID-19): a pictorial review. Eur Radiol. 2020;30:4381–9.
  22. 22. Fields BKK, Demirjian NL, Dadgar H, Gholamrezanezhad A. Imaging of COVID-19: CT, MRI, and PET. Semin Nucl Med. 2021;51:312–20.
  23. 23. Palabiyik F, Kokurcan SO, Hatipoglu N, Cebeci SO, Inci E. Imaging of COVID-19 pneumonia in children. Br J Radiol. 2020;93:20200647.
  24. 24. Danzi GB, Loffi M, Galeazzi G, Gherbesi E. Acute pulmonary embolism and COVID-19 pneumonia: a random association? Eur Heart J. 2020;41:1858.
  25. 25. Behzad S, Aghaghazvini L, Radmard AR, Gholamrezanezhad A. Extrapulmonary manifestations of COVID-19: Radiologic and clinical overview. Clin Imaging. 2020;66:35–41.
  26. 26. Lui K, Wilson MP, Low G. Abdominal imaging findings in patients with SARS-CoV-2 infection: a scoping review. Abdom Radiol N Y. 2021;46:1249–55.
  27. 27. Bhayana R, Som A, Li MD, Carey DE, Anderson MA, Blake MA, et al. Abdominal Imaging Findings in COVID-19: Preliminary Observations. Radiology. 2020;297:E207–15.

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