Histopathology Practical 1 Flashcards
(24 cards)
Which tissue is this and what is the structure in the middle?
Liver
Vena centralis
What does the edges portal triad consist off?
A. Hepatica
V. Portae
Bileduct
Microvesicular fatty infiltration
( steatohepatopathy)
Macrovesicular fatty infiltration
(steatohepatopathy)
Macrovesicular fatty infiltration
(steatohepatopathy)
more severe around central vein
some nuclei are in very bad shape
might effect function of liver cells
Ionophor ( nicarbasin) toxicosis
muscle dystrophy
Ionophor ( nicarbasin) toxicosis
muscle dystrophy
- macrophages try to remove necrotized area
Ionophor ( nicarbasin) toxicosis
muscle dystrophy
chronic demarcation
angiofibroblast tissue - early necrosis
chronic demarcation
angiofibroblast tissue –> formation of new blood vessels
fibrocytes : flatter, darker
fibroblast: active cells rounder
more wavey tissue -> more mature tissue
Tuberculum ( cattle lungs)
red: artery
blue : microbronchus
green : granuloma ( tubercule, after mycobacteria)
langhans type multi nuclear giant cells
black : neutrophil granulocytes
white: histiocytes
calcium deposition
can only find it in mammals NEVER in poultry
mycobacteria is stained red, ziehl nielsen staining
when can fatty infiltration happen ?
stuffed geese
dogs with diabetes
cows that are lactation
what can be seen in a tuberculum of cattle?
- foreign body type giant cell
- langerhans type giant cell
- all three can be seen
-langhans type giant cell
-langhans type giant cell
What can be the cause of skeletal muscle dystrophy?
- Mycobacterium bovis
- vitamin E deficiency
- the rapid onset of lactation
- ionophore toxicosis
- ionophore toxicosis
Is the macrovesicular steatohepathopathy a reversible lesion?
- Yes
- No
- Only if less than 50% of hepatic parenchyma is affected
- only if less than 30% of hepatic parenchyma is affected
- No
Which statement is true for the tuberculum?
- it has a concentric structure
- all three answers are correct
- it is an epitheloid type granuloma
- it is caused by mycobacteria
- all three answers are correct
What is the difference between microvesicular and macrovesicular steatohepathy?
- the size of vesicles
- all three
- the extent of cell damage
- the severity of the process
- all three
What is necessary for fat staining in histopathology?
- Ziehl-Neelsen staining
- fixation in alcohol
- fixation in cold formaldehyde
- frozen sections
- frozen sections
Calcification can be present in the centrum of a tubercule
- Right
- Wrong
right
Mention mononuclear cells
Plasma cells
Lymphocytes
Macrophage
