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Large abscess. with flecks of gas, involving the left masseter, surrounding the mandibular ramus and extending into the left submandibular space. No extension of the collection superior to the zygoma.
Multiple carious teeth, with lingual cortical erosion adjacent to LL7 communicating with the abscess. Associated reactive mandibular hyperostosis.
The left submandibular gland is displaced medially, as is the orophayrnx and cartilaginous complex, but no other spread. Reactive lymph nodes.