Download - Phagocytosis
Phagocytosis
PMNLs Plasma cellsMacrophage lymphocyteinflammation: seen here are mainly neutrophils, but there are also plasma cells, lymphocytes, and macrophages
CONT. INFLAMMATION
GRANULOMA
Granuloma:-It’s a type of chronic specific inflammation,
characterized by accumulation of tumor like masses .
-types :1-infective ,
2-non-infective.
Granuloma:The single tubercle composed of :
1-central necrotic tissue ,2-epithellioid cells,
3-lymphocytes and plasma cells ,4-langhans cell.
Tuberculosis-Tuberculosis , MTB or TB (short for tubercles
bacillus) is infectious disease caused by Mycobacterium tuberculosis
-It is usually attacks the lungs but can also affect other parts of the body.
-It is spread through the air when people who have active MTB infection cough, sneeze, or spit
1 -Early T.B in lymph node:
-Pale pink rounded tubercles among blue lymphoid tissue.-the tubercle is formed of : epithelioid cells, langhans gient cells &lymphocytes.
2 -Caseating T.B in LN
- it is characterized by acellular pink areas of necrosis surrounded by a granulomatous inflammatory process
-Caseous is a form of biological tissue death. Necrosis (death) Tuberculosis
3 -Chronic fibrocasious T.B in lung:
-large irregular areas of caseation appearing homogenous pink surrounded by tubercles reaction an fibrous tissue.
Bilharziasis
-It is a parasite infection by a trematode worm acquired from infested water. Also known as (schistosomiasis).
-it is can produce in liver, bladder, and gastrointestinal problems
4 -Bilharziasis in rectum:
Bilharzia ova deposited mainly in the submucosa -ova appear rounded or oval and yllowish refractile shell,degenerated ova are pink , while clascified ova are blue.-ova are surrounded by macrophages ,plasma cells, esinophils,lymphocytes & foreign body giant cells.
5 -Bilharziasis in Urinary Bladder:
-Bilharzia ova deposited mainly in the submucosa with less degree in other layers . -The ova surrounded by bilharzial rxn
6 -Bilharziasis in liver:
Bilharzias ova deposited in the portal tract.The ova surrounded by bilharzial rxn formed capilleries & new bile ducts.