OBJECTIVE: To evaluate endoscopy for detection of epithelial remnants within the feline tympanic bulla following ventral bulla osteotomy (VBO) and to report the most likely locations within the bulla for epithelial remnants to occur. METHODS: This was a single-center experimental cadaveric study. 10 VBO procedures were performed by 5 board-certified surgeons in 5 feline cadavers. Following completion, a 1.9-mm, 30° rigid endoscope was inserted into the rostral, caudal, dorsal, lateral, and medial section, and images were acquired. A blinded observer evaluated the endoscopic images for epithelial remnants, and the percentage of the section containing epithelial remnants was measured. The mean and SD of distribution of epithelial remnants were calculated for each section. RESULTS: Remnant epithelium was noted in at least 1 section in each cadaver. The dorsal section was the most common to have epithelial remnants identified (10 of 10), whereas the lateral (5 of 10) and medial (5 of 10) were the least common. The lateral section contained the most epithelial remnants (6.9 ± 11.42%), whereas the caudal section contained the least (1.2 ± 1.42%). CONCLUSIONS: The use of a 1.9-mm, 30° endoscope was feasible for evaluation and identification of epithelial remnants in a feline tympanic bulla following VBO. Epithelial remnants were consistently identified in all sections with endoscopic assistance. CLINICAL RELEVANCE: Endoscopy following completion of a VBO may be considered to ensure complete removal of epithelium.