Mophological syndrome

Articles

• interface hepatitis
  25 May 2004

  piecemeal necrosis

• acute inflammation
  1 June 2004

  Digital cases
  Case 25 (HPC:25) : Acute appendicitis
  Case 94 (HPC:94) : Acute appendicitis
  Case 13 (HPC:13) : Acute synovitis
  Definition: Acute inflammation is a rapid response to an injurious agent that serves to deliver mediators of host defense-leukocytes and plasma proteins-to the site of injury.
  Types - Lesional patterns
  acute inflammation
  congestive inflammation
  cellular acute inflammation
  suppurative inflammation / suppuration
  abcess / abcesses / abcedation (...)

• focally enhanced gastritis
  29 November 2004

  focal active gastritis

• acute hepatitis
  30 May 2003

  Microscopy
  The essential components of the acute phase of hepatitis are:
  inflammatory-cell infiltration
  hepatocellular damage
  cholestasis
  Kupffer-cell activation
  endotheliitis
  bile-duct damage
  ductular reaction
  hepatocellular regeneration
  hepatocellular damage
  Hepatocellular damage range from minor degrees of cell swelling to cell death. They are accompanied by the inflammatory infiltration described below, reflecting the important role of cellular immunity in the (...)

• acute pancreatitis
  11 May 2005

  Images
  The gross pathology and progression of acute pancreatitis
  https://twitter.com/PancPathologist/status/762627089111580672
  Synopsis
  complications
  peripancreatic free fluid collections
  extrapancreatic spread of acute pancreatitis
  infected or noninfected pseudocysts
  pancreatic abscess
  complex cystic structure with internal debris/septations and echogenic gas bubbles
  vascular pseudoaneurysm
  acute hemorrhage
  venous thrombosis
  associated gastric varices
  Etiology (...)

• focal active colitis
  18 December 2003

  This inflammatory pattern is associated with bacterial (Campylobacter, Salmonella, Shigella, E. cati, Yersinia) and viral infections or drug-induced injury.
  Other clinical associations include irritable bowel syndrome and inflammatory bowel disease, particularly Crohn’s disease.
  In the absence clinical colitis, these changes often remain unexplained and could be related to bowel preparation.
  Synopsis
  neutrophilic cryptitis : focal neutrophilic infiltrates in crypt epithelium (...)

• hepatic cysts
  6 October 2003

  liver cyst, intrahepatic cysts; hepatic cystic lesions; hepatic cystic anomalies;
  Images
  Mucinous cystic neoplasm of the liver, formerly known as biliary cystadenoma.
  https://twitter.com/GIPathologyURMC/status/859076314862628864
  Autosomal dominant polycystic kidney disease involving liver
  https://twitter.com/JMGardnerMD/status/875715108651094016
  https://twitter.com/rositadeolivop1/status/882008688747327488
  Etiology
  solitary hepatic cysts
  simple hepatic cysts
  hepatic (...)

• acute gastritis
  10 January 2005

  Definition: Acute gastritis is an cute inflammation in the gastric mucosa is most readily demonstrated as epithelial PMN infiltration, which is never a normal finding.
  Acute inflammation is the presence of extravascular polymorphonuclear neutrophils (PMNs) in the absence of concurrent chronic inflammation.
  Acute gastritis (accompanied by acute mucosal injury) results from many disorders with multifactorial etiologiesand diverse histologic patterns.
  The clinical symptoms, endoscopic (...)

• Peritonitis
  27 November 2004

  Peritoneal inflammation; peritoneal serositis

• palisading granuloma
  29 December 2003

  palisaded granulomas
  Definition: Palisading granulomas are a subtype of necrotizing granuloma in which the mononuclear phagocytes at the periphery have elongated or spindle-shaped nuclei that are palisaded and arranged roughly parallel to each other and roughly perpendicular to the edge of the central necrotic zone.
  The most common are rheumatoid nodules and post-surgical necrobiotic granulomas occurring in the prostate, urinary bladder, and other sites.
  Est ulcération They have also (...)

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