Medicine:Hepatization of lungs
Hepatization of the lungs is an old name for changes to the visual appearance of the lungs so that they resemble the liver.[1] This happens when they are gorged with effuse matter and are no longer pervious to the air. The main cause is lobar pneumonia. Hepatization appears in ultrasounds as consolidations.[2]
Red hepatization is the presence of red blood cells, neutrophils, and fibrin in the pulmonary alveolus/alveoli. The texture of the lungs changes, and, unlike healthy lungs, they no longer float if placed in a bowl of water.[3]
Red hepatization may precede or be found in combination with gray hepatization, where the red cells have been broken down, leaving a fibrinosuppurative exudate.[3]
Yellow hepatization is uncommon due to treatment with antibiotics, but it may occasionally be seen, e.g., during an autopsy.[1]
Transformation from red hepatization to gray hepatization is an example for acute inflammation turning into a chronic inflammation.
References
- ↑ 1.0 1.1 Popper, Helmut (2016-12-22) (in en). Pathology of Lung Disease: Morphology – Pathogenesis – Etiology. Springer. pp. 123–124. ISBN 978-3-662-50491-8. https://www.google.com/books/edition/Pathology_of_Lung_Disease/bZjJDQAAQBAJ?hl=en&gbpv=1&pg=PA123.
- ↑ Doniger, Stephanie J. (2014-04-24) (in en). Pediatric Emergency Critical Care and Ultrasound. Cambridge University Press. pp. 82. ISBN 978-1-107-43362-5. https://www.google.com/books/edition/Pediatric_Emergency_Critical_Care_and_Ul/73A9AwAAQBAJ?hl=en&gbpv=1&pg=PA82.
- ↑ 3.0 3.1 Tomashefski, Joseph F. (2009-06-18) (in en). Dail and Hammar's Pulmonary Pathology: Volume I: Nonneoplastic Lung Disease. Springer Science & Business Media. pp. 249. ISBN 978-0-387-68792-6. https://www.google.com/books/edition/Dail_and_Hammar_s_Pulmonary_Pathology/j-eYLc1BA3oC?hl=en&gbpv=1&bsq=hepatization.
Further reading
- Lectures on the diseases of the lungs and heart by Thomas Davies
- Medical Times 1841
- London Medical Gazette, December 8, 1843
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