A coordinated tissue response involving immune activity, vascular changes and cellular signaling after injury or challenge. It can support defense and repair while also causing damage when excessive or persistent.
Inflammation of the spinal cord. Its effects depend on the affected pathways and level, distinguishing an anatomical syndrome from one unique infectious or immune cause.
Inflammation of the pleura.
Inflammation of the synovial lining of an anatomical joint. It can cause swelling and contribute to tissue injury through infectious, autoimmune or other mechanisms.
A localized collection of pus in the retropharyngeal space. Its deep neck location can affect swallowing or the airway, distinguishing it from a superficial throat lesion.
A collection of pus in tissues around a tonsil. The localized cavity differs from uncomplicated diffuse tonsillitis, despite overlapping pain and inflammation.
An organized aggregate of immune cells, commonly including activated macrophages. It is a pattern of tissue response with infectious and noninfectious causes, not a synonym for tuberculosis.
Fluid and associated material leaving the blood circulation because of altered vascular permeability, typically during inflammation. Its composition differs from fluid accumulating mainly through pressure or protein-balance changes.
Material that leaves the blood vessels during inflammation. Historical theories of its formation and removal should be distinguished from current pathology.
