Pathology Volume 1 Flashcards Preview

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Flashcards in Pathology Volume 1 Deck (27):
1

What cells are the tissue bound equivalent of blood borne basophils?

Mast calls

2

What type of giant cell is characterized by a horseshoe arrangement of the nuclei?

Langhans cells

3

What type of giant cells if associated with an annulus of nuclei surrounded by a lipid-filled clear zone?

Touton giant cells

4

What type of giant cell is associated with haphazardly arranged nuclei?

Foreign body giant cells

5

What type of immune call is associated with an eccentric "cartwheel" or "clockface" nucleus and perinuclear halo?

Plasma cell

6

What is the tissue of origin of a sarcoma?

Soft tissue

7

What type of tumor is associated with small, round, blue cells?

Retinoblastma

8

How long does complete healing of a corneal abrasion take, including reformation of anchoring fibrils?

4 to 6 weeks

9

By what process does the corneal stroma heal?

Fibrosis

10

What layer of the cornea does not regenerate if damaged?

Bowman's membrane

11

What are the two glycosaminoglycans of the cornea?

Keratin sulfate and chondroitan sulfate

12

What glycosaminoglycan is found in the sclera?

Chondroitin sulfate

13

Name two ways that cyclodialysis can cause hypotony.

1. Aqueous leak into the suprachoroidal space 2. Decreased aqueous production

14

What causes cyclodialysis?

Disinsertion of the longitudinal muscle from the scleral spur

15

What causes traumatic recession of the anterior chamber angle?

Rupture of the face of the ciliary body

16

Where is retinal dialysis most likely to occur?

Inferotemporal or superonasal quadrant

17

What determines the borders of a choroidal hemorrhage?

Location of the vortex veins and scleral spur

18

What causes iridodialysis?

Separation of the iris root at the thinnest portion of the diaphragm

19

Name two complications of choroidal rupture.

1. CNV 2. Granulomatous inflammation

20

What causes choroidal rupture?

Break in Bruch's membrane due to trauma

21

Where is commotio retinae typically most prominent?

Macula

22

What causes the opaque retina of commotio retinae?

Disruption of the architecture of the photoreceptor elements

23

What is the retina attached to at the ora serrata?

Nonpigmented epithelium of the pars plana

24

How long does it take for hemosiderin to form following hemorrhage?

72 hours after hemorrhage

25

What causes sclopetaria?

Chorioretinal rupture and necrosis

26

What stage of atrophy is associated with "squared-off'' configuration of the globe?

Atrophic bulbi with shrinkage

27

What is the average diameter of an eye with phthisis bulbi?

16 to 19 mm