Axial (a) and parasagittal (b) computed tomography (CT) scan images of the patient. (a) One density pedunculated bony mass was on the promontory (hollow arrow), and another broad basal bony mass was on the Eustachian tube opening (black arrow), the third density bony mass located at the long crus of the incus (arrow head) (insert). (b) The density bony masses occupied the Eustachian tube opening (black arrow) and mesotympanum (hollow arrow) covering semicanal of tensor tympani muscle (arrow head).
