L4: Ulcers, Sinuses & Fistulas (Pt 1) Flashcards
1
Q
Def of Ulcer
A
break in the continuity of covering epithelium, either skin or mucous membrane.
2
Q
Parts of Ulcer
A
3
Q
Margin of Ulcer
A
- line of demarcation between ulcer and normal tissue.
- It may be regular (rounded or oval) or irregular.
4
Q
Edge of Ulcer
A
- is the part connecting floor to the margin.
5
Q
Floor of Ulcer
A
- It is the part which is seen.
- Floor may contain discharge, granulation tissue.
6
Q
Base of Ulcer
A
- It is the part which is felt where ulcer rests.
- It may be bone or soft tissues
7
Q
Types of Edges
A
8
Q
Sloping Edge
A
It is seen in healing ulcer
9
Q
Undermined Edge
A
- is seen in tuberculous ulcer.
- Disease process advances in deeper plane (in subcutaneous tissue) whereas epidermis (skin) proliferates inwards.
10
Q
Punched Out Edge
A
- is seen in gummatous (syphilitic) ulcer and trophic ulcer.
- It is due to end arteritis.
11
Q
Raised & Beaded Edge
A
- (pearly white) is seen in rodent ulcer (BCC).
- Beads are due to proliferating active cells.
12
Q
Everted Edge
A
- (Rolled out)
- It is seen in carcinomatous ulcer due to spill of the proliferating malignant tissues over the normal skin.
13
Q
Examples of Ulcers
A
14
Q
Types of Margins
A
15
Q
Healing Margin
A
three zones from inside out.
- First is red zone due to central red healthy granulation tissue.
- second is middle blue zone due to active growing epithelium.
- third is outer white zone due to well formed scar.
19
Q
Clinical Classification of Ulcers
A
20
Q
Pathological Classification of Ulcers
A
21
Q
Classification of Ulcers based on duration
A
22
Q
Causes of Chronic Ulcer
A
36
Q
Classification of Fistulas based on output
A
