GIT

Question 1

What are the 3 broad types of oral lesions?

Answer 1

1. Ulcers
2. Color change/patch
3. Lumps

Question 2

List the possible aetiological causes of oral ulcers:

Answer 2

1. Idiopathic e.g. canker sores
2. Mechanical/Trauma
3. Infectious e.g. HFMD
4. Systemic diseases
   - autoimmune e.g. crohns
   - haematological e.g. folate deficiency
5. Mucocutaneous disorders e.g. pemphigus
6. Tumours/Cancers

Most commonly idiopathic n trauma caused

Question 3

List some types of Oral ulcers:

Answer 3

1. Aphthous Ulcers (canker sores)
   - ure normal ulcer
2. Herpesvirus infection
   - red, small vesicles, blisters containing clear fluid
3. Oral Candidiasis
   - due to candida albican
   - white plaque can be scrapped to reveal an underlying granular erythematous inflammatory base

+
4. Oral lesions associated w HIV

Question 4

List the Oral lesions associated w HIV

Answer 4

• candidiasis
• herpetic vesicles
• other microbial infections

1. hairy leukoplakia (due to epstein barr virus, white blood patches that cannot be scrapped off)
2. kaposi sarcoma (due to HHV-8, purplish macules, papules & nodules anywhere on oral mucous membranes)

Question 5

Which tends to be malignant? Erythroplakia or Leukoplakia?

Answer 5

Erythroplakia

Question 6

Types of mucosal changes in oral cavity:

Answer 6

1. Leukoplakia (thick white patch)
2. Erythroplakia (thin red erthematous mucosa)
3. Speckled mucosa (combi of leuko-erythorplakia mucosal changes)

• note that these are solely descriptive terms, do not indicate a specific condition

Question 7

Tumours of the Oral Cavity can arise from..?

Answer 7

1. Surface squamous epithelium (benign or malignant)
2. Salivary glands
3. Odontogenic (not covered)