Capsule: ENT Flashcards
Pt px w biting R inner cheek when closing mouth, R lower teeth numbness, R lower jaw pain
- Examine oral cavity, oropharynx, mandible
- Perform secondary survey for concurrent injuries
- Assess for motor dysfunction + sensory disturbances
- Referral to the maxillofacial surgical team
Px of mandibular fracture (5)
Bite malalignment, trismus, pain+numbness along distribution of inf alveolar nerve, buccal haematoma, dental malocclusion
Mx of mandibular fracture (2)
An orthopantomogram (OPG) and urgent referral to the maxillofacial surgical team
What are Le Fort fractures?
Fracture of the pterygoid plates resulting in the separation of all or a portion of the midface from the skull base
The classification of Le Fort fractures
I - Horizontal
II - Pyramidal
III - Transverse
Px of zygomatic arch fracture
Cheek paraesthesia and interference of mandibular movements if it impinges upon the coronoid process of the mandible
Def of ulcer
A discontinuation in the epithelial surface
Px of aphthous ulceration
Discrete ulcers of gingival mucosa characterised by a centralised white ulcer w erythematous halo
What size criteria characterises a major aphthous ulcer?
> 1cm Diameter
Ddx of aphthous ulceration
Herpes virus, smoking cessation, squamous cell carcinoma, Bechets syndrome, Crohn’s disease
Which factors make you suspicious of SCC?
Indurated, lateral aspect of the tongue, failure to resolve, long term smoking hx
Mx of aphthous ulceration
Simple oral analgesia and topical anaesthetics
Swab for HSV infection if suspected
Assess for pathological cervical lymphadenopathy
Consider 2w referral to maxillofacial department
How do you stage primary oral cavity lesions?
MRI of the neck
What is the path of the facial nerve?
Pons, 1cm internal acoustic meatus, 3cm facial canal, stylomastoid foramen, parotid gland where it divides into terminal motor branches
Where is the internal acoustic meatus situated?
The petrous part of the temporal bone
What segments is the facial canal divided into?
Labyrinthine, tympanic, mastoidal
What are the five terminal branches of the facial nerve?
Temporal Zygomatic Buccal Mandibular Cervical