Opacification in right middle ear and mastoid air cells. Although the external canal is intact, there is erosion of the mastoid bone into the lateral neck soft tissues. Small internal ossification compatible with a bone sequestrum.
Extension of this infectious process into a huge right deep neck space collection. Smaller components involve the stylomastoid foramen as well as the pre and post styloid regions of the parotid space. Replacement of the sternocleidomastoid muscle with a peripherally enhancing abscess measuring approximately 45 x 54 x 96 mm.
There is also thinning / erosion of the mastoid medially, with a trace of fluid superficial to the right sigmoid sinus, but no evidence of venous thrombus or other intracranial extension.
Separate to this, there is a rounded erosion in the right maxilla around the periapical region of the UR2 tooth. Other minor odontogenic disease.