Acute inflammation : Macroscopic appearance

September 1, 2012 | By | Reply More

Acute inflammation : Macroscopic appearance

Calor, rubor, tumor, dolor, and functio laesa (heat, redness, swelling, pain, and impaired function).
Special macroscopic appearances include:
  • serous inflammation + abundant fluid rich exudates, e.g. peritonitis;
  • catarrhal inflammation + mucus hypersecretion, e.g. common cold;
  • haemorrhagic inflammation + vascular injury, e.g. pancreatitis;
  • suppurative inflammation + pus produced to form abscess or empyema;
  • fibrinous: exudates contain fibrin, which forms coating, e.g. pericarditis;
  • membranous: coating of fibrin and epithelial cells, e.g. laryngitis;
  • pseudomembranous: superficial mucosal ulceration with slough, e.g. pseudomembranous colitis secondary to Clostridium difficile ;
  • necrotizing (gangrenous) inflammation + tissue necrosis:

Category: Pathology, Surgery

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