Reacitve Lesions Of Mucosa Flashcards
What causes elongated rete ridges?
Hyperplasia of basal cells
What is atrophy?
Reduction in viable layers
What is erosion?
Partial thickness loss
What is ulceration?
Full thickness loss with fibrin surface
Define dysplasia
Disordered maturation in a tissue
How may mucosa react to trauma?
Inflamamtion
Keratosis
Ulceration
Fibrous tissue formation
Formation of bullae and vesicles
Other
What is an epulide?
Soft tissue swelling on GINGIVA ONLY
- reaction to chronic irritation / trauma
- can reoccur if stimulus persists
Histology of fibrous epulis?
Granulation tissue
Metaplastic bone formation
Ulceration
What is a vascular epulis?
Presentations?
Pyogenic granuloma
- reactive vascular lesion
- mainly on gingivae but can occur other sites
- usually as a result of trauma
Histology pyogenic granuloma?
Vascular proliferation
- large dilated vascular spaces
- inflammatory infiltrate under areas of erosion
Aetiology epulides?
Females > males
Anterior to molars >
May recur
What is fibrous epulis?
Firm, pedunculated or cession lesion
- colour depends on vascularity
- surface can be ulcerated
Histology fibrous epulis?
Fibroblastic tissue
Inflammatory cell infiltrate
Calcification / metaplastic bone
What ia giant cell epulis?
10% of epulis
- PGCG
- multinucleate giant cells within lesion
- pedunculated sessile or swollen lesion
How commonly describe lesion such as PG / PGCG / FE
Localised hyperplastic lesion of the oral mucosa. Production of repair tissue (granulation tissue and fibrous scar tissue) as a consequence of tissue damage and chronic inflammation.
