Acute inflammation
-
Upload
dr-snehal-kosale -
Category
Health & Medicine
-
view
63 -
download
0
Transcript of Acute inflammation
INFLAMMATIONInflammation is a protective response
involving host cells, blood vessels, and proteins and other mediators
that is intended to eliminate the initial cause of cell injury, as well as the necrotic cells and tissues resulting from the original insult, and
to initiate the process of repair
CLASSIFICATION According to
Duration : acute or chronicNature of exudate : fibrinous ,serofibrinous and
purulentEtiology : bacterial, fungal, viral.
The vascular and cellular responses of both acute and chronic inflammation Mediated by chemical factors derived from
plasma and cells.
SIGNS OF INFLAMMATION Four cardinal signs of Inflammation
(described by Celsus) Rubor- redness Dolor- pain Tumour- swelling Calor- heat
Fifth sign added by Virchow Functio leasa- loss of function
ACUTE APPENDICITIS
Grossly organ is swollen, serosa becomes dull, granular and reddish signifying early acute appendicitis.
MICROSCOPY
ACUTE MENINGITIS: GROSSLoss of normal lustre
and translucency of meninges.
Grayish white exudate over the surface of brain.
Prominent engorged meningeal vessels.
ACUTE MENINGITIS: MICROSCOPY
PYEMIC ABSCESS OF LUNG
Abscess is a pus filled cavity
Commonly a complication of pneumonia caused by Staph. aureus
More common on the right side (more vertical airways) and usually single.
PYEMIC ABSCESS- KIDNEY
PYEMIC ABSCESS MICROSCOPY
Foci of extensive necrosis surrounded by neutrophilic inflammatory infiltrate
PERICARDITIS- GROSSFibrinous exudate
which gives IrregularShaggy appearance
to the pericardial surface.
Also called “bread and butter” pericarditis.