Lab2 Inflammation and Repair Images Flashcards Preview

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Flashcards in Lab2 Inflammation and Repair Images Deck (35):
1

What is this? What are the purple cells?

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Acute inflammation

characterized by presence of neutrophils

2

What is this?

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Chronic inflammation

You can see presence of lymphocytes and plasma cells

3

What is this? What are the arrows indicating?

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Evolving pnemonia

Top arrow: edema and inflammatory cells

Bottom arrow: vascular congestion secondary to increase blood flow initially, follwed by stasis

4

What is this? What type of exudate is this?

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Acute pneumonia as shown by neutrophils within alveolar spaces

Example of purulen exudate

5

What is the arrow point to? How would you characterize this inflammation of the pleura

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Fibrinous pleuritis

Acute inflammation of pleura with fibrin on the surface

6

What is the arrow pointing to?

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An ulcer

An area of mucosal loss associated with acute inflammation and necrosis

7

What is this central area called? What type of inflammation? Hint -- a possible outcome of pneumonia

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Pulmonary abscess formation

This is one possible outcome of acute inflammation

An abscess is a localize collection of pus associated with destruction of underlying normal tissue

Suppurative inflammation

8

What does this represent? And what are these cells?

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black arrows: plasma cells with eccentric nucleus, adjacent pale area

green arrows: lymphocytes with single nucleus filling most of cell

9

What kind of cell is this?

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Eosinophil

10

What does this show? What is the big blob in the center?

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Granuloma comprised of epithelioid histiocytes

Giant cells [langhans type] are in center

11

What is this? How can you tell?

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Granulation tissue

Endematous tissue and new capillaries forming

12

What type of cell is this?

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Myofibroblast

Expresses antigens of smooth muscle

responds to agents that contract smooth muscle

responsible for wound contraction

13

What is this? What are the arrows?

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This is the early stage of a scar

The arrows in clockwise order starting top left:

- re-epithelialization

- scale crust

- granulation tissue

14

What is this?

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This is granulation tissue

the left arrow is new blood vessel formation

The right arrow is endematous stroma

15

What is this?

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Late scar

You can tell from the fibrosis and collagen depostion

Fewer capillaries

16

What does the arrow point to?

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Thin new epidermis forming above a scar

Re-epithelialization

17

What is this?

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thick collagen bundles in keloid scar

18

what is this

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Keloid scar

19

What type of cell does this point to?

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Neutrophil

20

What type of inflammatory cell does this show?

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Neutrophils!

21

What type of cells are these?

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A =  lymphocyte - dark stained nucleus, little cytoplasm

B = neutrophil

Lymphocyte is smaller than neutrophil

22

What type of inflammatory cells here?

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Lymphocytes

23

What type of cell? How do you know?

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plasma cell

clock-face nucleus

peri-nuclear halo = large golgi 

24

What type of cells do arrows point to?

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plasma cells

25

What is happening in this abnormal lung?

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- alveolar spaces that normally contain air are filled with cellular infiltrate

26

What are the arrows pointing to in acute inflammation of the lung?

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blood vessels dilated and backed with RBCs due to increased blood flow and vascular permeability

called congestion

27

What are the pink strands the arrow is pointing to in this inflammatory response? What does it indicate?

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Fibrin

presence of fibrin in extravascular space indicated increased vascular permeability [normally cannot get through vessel wall]

28

What kind of inflammatory cells are in this infection? Acute or chronic?

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mostly lymphocytes and plasma cells

chronic infection

29

What kind of connective tissue in this infection? Why did it form?

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Dense fibrous tissue

Fibrosis often accompanies chronic inflammation --> scar

30

What do the white circle and arrows point to?

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white circle = granuloma

green arrow = epithelioid histiocytes [macrophages]

red arrow = multinucleated giant cell

yellow arrow = lymphocytes

31

What is this called? What type of necrosis? Likely cause?

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Granuloma = Caseous necrosis

TB

32

Arrows point to injured myocardial cells. Circles point to inflammatory cells. Describe the cellular changes? Type of cell death?

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hypereosinophilic myofibers

loss of nuclei [karyolysis]

coagulative necrosis?

33

Can you see any residual myocardial fibers? type of tissue? What do the arrows point to in this section of the myocardium?

- no myocardial fibers

loose fibrous connective tissue containing edema + blood

- thin walled blood vessels

34

Stain of myocardium following MI with immunoperoxidase stain CD31 to mark endothelial cells [in brown]. What are the structures? What type of tissue?

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structures are capillaries being formed

this is granulation tissue

35

This appearance of the liver is a sign of what?

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Cirrhosis