Selected article for: "diffuse alveolar damage and fibrin deposition"

Author: Pannone, Giuseppe; Caponio, Vito Carlo Alberto; De Stefano, Ilenia Sara; Ramunno, Maria Antonietta; Meccariello, Mario; Agostinone, Alessio; Pedicillo, Maria Carmela; Troiano, Giuseppe; Zhurakivska, Khrystyna; Cassano, Tommaso; Bizzoca, Maria Eleonora; Papagerakis, Silvana; Buonaguro, Franco Maria; Advani, Shailesh; Muzio, Lorenzo Lo
Title: Lung histopathological findings in COVID-19 disease – a systematic review
  • Cord-id: keom0z12
  • Document date: 2021_5_17
  • ID: keom0z12
    Snippet: Since December 2019, the global burden of the COVID-19 pandemic has increased rapidly and has impacted nearly every country in the world, affecting those who are elderly or with underlying comorbidities or immunocompromised states. Aim of this systematic review is to summarize lung histopathological characteristics of COVID-19, not only for diagnostic purpose but also to evaluate changes that can reflect pathophysiological pathways that can inform clinicians of useful treatment strategies. We id
    Document: Since December 2019, the global burden of the COVID-19 pandemic has increased rapidly and has impacted nearly every country in the world, affecting those who are elderly or with underlying comorbidities or immunocompromised states. Aim of this systematic review is to summarize lung histopathological characteristics of COVID-19, not only for diagnostic purpose but also to evaluate changes that can reflect pathophysiological pathways that can inform clinicians of useful treatment strategies. We identified following histopathological changes among our patients:: hyaline membranes; endothelial cells/ interstitial cells involvement; alveolar cells, type I pneumocytes/ type II pneumocytes involvement; interstitial and/ or alveolar edema; evidence of hemorrhage, of inflammatory cells, evidence of microthrombi; evidence of fibrin deposition and of viral infection in the tissue samples. The scenario with proliferative cell desquamation is typical of Acute Respiratory Distress Syndrome (ARDS) that can be classified as diffuse alveolar damage (DAD) and not DAD-ARDS. The proposed pathological mechanism concerns the role of both innate and adaptive components of the immune system. COVID-19 lethal cases present themselves as a heterogeneous disease, characterized by the different simultaneous presence of different histological findings, which reflect histological phases with corresponding different pathological pathways (epithelial, vascular and fibrotic changes), in the same patient. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13027-021-00369-0.

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