Red Lesions Flashcards
Why are lesions red in colour?
This can be due to:
- blood flow increasing through tissues due to inflammation or dysplasia
or
reduced thickness of epithelum making CT and underlying BVs more visible
Why may blood flow through tissues increase?
Inflammation
Dysplasia
When are we concerned in terms or oral lesion?
When there is no obvious cause and there is swelling present
What does dysplasia cause?
Increased vasculatiry
Describe denture red lesions?
We can get red lesions from dente wearing - can be related to denture hygiene, candida (acute atrophic candidiasis - denture stomatitis)
When would a red lesion likely caused by a denture be a red flag?
When only part of ridge is affected rather than whole denture bearing area - will need biopsied
What is geographical tongue?
This is when the tongue has red lesions with white margin surrounded - changes in pattern over time and returns to normality often
Why may the palate be red in edentulous pt?
If denture is rubbing, being worn overnight, if denture is old and ridge has resorbed but palatal bone remains same so it takes all traumatic force denture
What is erythroplakia?
This is an area of unexplained red change in mucosa - no obvious cause for lesion - mores us than leukoplakia and requires biopsy
Why can lesions be blue?
Lesion colour are often related to blood flow, if the blood is slower moving in varicosities then it appears blue and is often seen under tongue
What are blue lesions within the mucosa often known as?
Haemangiomas
What is a lesion filled with saliva known as?
Mucocele
What is lesion filled with lymph known as?
Lymphangioma
What do red lesions commonly contain?
Blood
What do blue lesions commonly contain?
Other fluid - can be saliva or clear fluids
What is a vascular hameratoma?
This is a lesion that increases and reduces in size, red lesion, friable, very red
What happens to sizes of malignant lesions?
Increases only
What is a haemangioma?
Blue lesion related to blood with in the tissue
If hamangioma is blue what does this mean?
Its a cavernous haemangioma that has blood in spaces and is slow moving and rapidly deoxygenated
What is a lymphangioma?
noncancerous fluid-filled cysts that form in children, often on the head and neck. These cysts form when lymph fluid backs up and doesn’t flow normally through tissues.
What is a haemangioma?
collection of small blood vessels that form a lump under the skin - vascular lesion
What is a cavernous hameangioma?
cavernous hemangioma happens when capillaries – small blood vessels that connect arteries and veins – swell and form a noncancerous mass called an angioma
What are some types of vascular disease?
Large vessel disease - giant cell arteritis
medium vessel disease - Kawasaki disease
small vessel disease - granulomatosis
