Phagocytosis Macrophage PMNLs Plasma cells lymphocyte inflammation seen

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Phagocytosis

Phagocytosis

Macrophage PMNLs Plasma cells lymphocyte inflammation: seen here are mainly neutrophils, but there also

Macrophage PMNLs Plasma cells lymphocyte inflammation: seen here are mainly neutrophils, but there also plasma cells, lymphocytes, and macrophages

CONT. INFLAMMATION GRANULOMA

CONT. INFLAMMATION GRANULOMA

Granuloma: -It’s a type of chronic specific inflammation, characterized by accumulation of tumor like

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,

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

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

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 -Caseous is a form of biological tissue

2 - Caseating T. B in LN -Caseous is a form of biological tissue death. Necrosis (death) Tuberculosis - it is characterized by acellular pink areas of necrosis surrounded by a granulomatous inflammatory process

3 - Chronic fibrocasious T. B in lung: -large irregular areas of caseation appearing

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.

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

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

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

6 - Bilharziasis in liver: Bilharzias ova deposited in the portal tract. The ova surrounded by bilharzial rxn formed capilleries & new bile ducts.

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