Fracture Mimics on Temporal Bone CT: A Guide for the Radiologist

Abstract

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Tympanic Plate Fractures in Temporal Bone Trauma: Prevalence and Associated Injuries

“…8 Temporal bone fractures involving the tympanic plate (Figs 1 and 2), however, are under-recognized and have received little attention beyond isolated case reports involving mandibular trauma. [8][9][10][11][12][13][14][15] The tympanic plate of the temporal bone is a U-shaped structure forming the anterior wall, floor, and part of the posterior wall of the external auditory canal. The limited literature concerning tympanic plate fracture (TPF) suggests that these types of fractures are uncommon.…”

“Leave me alone”: anatomical structures and variations seen on computed tomography of the temporal bone

“…On CT, a cochlear cleft is seen as a hypoattenuated, curvilinear focus in the otic capsule around the cochlea (21,22) . nonsclerotic edges and angulation presented by cranial fractures are important criteria distinguishing them from sutures (23,24) .…”

Anatomy and Surgical Approach of the Ear and Temporal Bone

“…The tympanosquamous and tympanomastoid sutures are located within the osseous portion of the EAC and represent junction points between the respective osseous components of the temporal bone. These sutures can be very prominent and are sometimes relevant in various pathologic conditions including as a means of spread of an infectious or neoplastic process [2].…”