Presentation
Three-month history of painless left-sided post-auricular swelling. Nil precipitating trauma.
Patient Data
Age: 55 years
Gender: Male
From the case:
Intramuscular arteriovenous malformation
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Large intramuscular arteriovenous malformation located within the left splenius capitis muscle. This is supplied by the left occipital artery which has an enlarged appearance and drained by paraspinous neck veins.
No evidence of intracranial extension. Remaining appearance of the neck is unremarkable.
Case Discussion
The patient has been booked for embolization of his left occipital artery to treat the arteriovenous malformation.