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(A) MRI T2 sequence of a patient with bilateral endolymphatic sac tumors, indicated by white arrows. Hyperintense fluid in the basal turn of the cochlea, possibly suggesting intracochlear bleeding (orange arrow), is confirmed in the T1 sequence (C). (B) CT scan shows a characteristic “moth-eaten” pattern of bone destruction at the location of the endolymphatic sac, involving the vestibular aqueduct (white arrows).
