Fissura tympanomastoidea

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Fissura tympanomastoidea --> tympanomastoid fissure

a fissure separating the tympanic portion from the mastoid portion of the temporal bone; it transmits the auricular branch of the vagus nerve.

Synonym: fissura tympanomastoidea, auricular fissure, tympanomastoid suture.