Forms of Acute Inflammation

In this article we will discuss the Forms of Acute Inflammation. So, let’s get started.

Forms of Acute Inflammation

Catarrhal inflammation

  • A form affecting mainly a mucous surface, marked by a copious discharge of mucus and epithelial debris
  • Large amount of mucinous secretions
  • Example common cold

Exudative inflammation

One in which the prominent feature is an exudate

Serous inflammation

  • One producing a serous exudates
  • Copious exudates
  • High concentration of proteins
  • Source of fluid from plasma and mesothelial cells
  • Examples are synovitis, peritonitis and burn blisters

Fibrinous inflammation

  • One marked by an exudate of coagulated fibrin
  • Protein-rich fluid exudates- Fibrinogen
  • Source of fluid- Mucosal and serosal membranes
  • Example- pericarditis

Suppurative/purulent inflammation

  • One marked by pus formation
  • Pus produced by pyogenic organisms
  • Pus consists of damaged tissues and dead neutrophils
  • Examples are abscess, empyema, pyomyositis, etc

Hemorrhagic inflammation

  • This occurs when there is vascular damage. Red blood cells may leave the vessels either through damaged area or by a process of passive diapedesis

Pseudomembranous inflammation

An acute inflammatory response to a powerful necrotising toxin, characterised by the formation on a mucosal surface of a false membrane composed of precipitated fibrin, necrotic epithelium and inflammatory leukocytes.

Traumatic Inflammation

One that follows a wound or injury

Necrotising inflammation

  • The exudates is dominated by accumulation or induction of tissue necrosis without appreciable fluid or exudation
  • Example- Avascular necrosis
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