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Piecemeal necrosis

Necrosis that occurs in fragments

Necrosis that occurs in fragments

Piecemeal necrosis generally refers to a necrosis that occurs in fragments.

Piecemeal necrosis in liver aka interface hepatitis is necrosis of the limiting plates, by inflammatory cells. It may be identified as actual necrosis of cells or by irregularity of the limiting plates which is caused IOS's hepatocytes and replacement with inflammatory cells and/or fibrosis. TOC

Liver

When used in relation to the nibbling necrosis) refers specifically to a loss and degeneration of (limiting plate) hepatocytes at the [lobular-portal-interface, producing a moth-eaten irregular appearance. Piecemeal necrosis of the liver is associated with a lymphocytic infiltrate and with destruction of individual hepatocytes along the edges of the portal tract.It is a cardinal feature of chronic viral hepatitis (especially chronic hepatitis) as well as chronic autoimmune hepatitis. Defined as destruction of hepatocytes at the limiting plate.

References

References

  1. (2001). ""Piecemeal" Necrosis: Renamed Troxis Necrosis". Experimental and Molecular Pathology.
  2. [http://eulep.pdn.cam.ac.uk/pathbase2/pathbase2_mpath_pathology.popup.php Pathbase > MPATH 597: cell and tissue damage process > MPATH 13: piecemeal necrosis] Retrieved July 2, 2011
  3. into the adjacent parenchyma,[http://tpis1.upmc.com:81/tpis/dlp/CHAP3h.html#pathologic%20features Transplant Pathology at the University of Pittsburgh > Chronic hepatitis > Chapter 3 > PATHOLOGIC FEATURES] Last Modified: Mar 12, 2010
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