Masticatory myositis Flashcards
1
Q
A
2
Q
What is it?
A
- an autoimmune myopathy affecting master and temporal muscles alone
3
Q
Presentation & prevalence
A
- progressive pain or inability to open the jaw
- not uncommon in practice
4
Q
Diagnosis
A
- CE supported by anti-type IIM antibodies
- need to exclude temporomandibular joint pathology or other soft tissue pathology such as retrobulbar abscess
5
Q
Tx
A
- extended course of corticosteroids at immunosuppressive doses
- chronic condition, if untreated may lead to scarring of muscles with restriction of jaw opening
- care with anaesthesia if can’t open jaw as may have difficulty intubating
