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Skulls comparing tympanic exposure via different LBO techniques
Figure 10A. Lateral view of skull showing aggressive (preferred) excision of the lateral bulla thorough exposure of the tympanic cavity. Dotted line indicates excision margin of the tympanic bulla.
Figure 10B. Lateral view of skull with limited excision of the tympanic bulla. Dotted line shows extent of bone removed in "traditional" descriptions of the procedure in the veterinary literature. This limited approach provides poor exposure particularly in the caudal aspect of the tympanic cavity.