Based on the imaging findings, the tympanic membrane is intact, and there are no significant abnormalities with the ossicles, cochlear turn, or air cells. However, the cystic dilatation in the right vestibule could suggest cystic dysplasia, which may affect balance and ear function. Since you are unable to hear in your right ear, it is important to consult an otolaryngologist or a diving physician to assess the impact of these findings on your ability to dive safely. Given the potential effects of pressure changes on the ear and balance, a thorough evaluation is recommended before engaging in scuba diving. Please do not hesitate to contact us if you need further assistance.