Imaging HRCT MRI Angiography/ MRA SYSacT 1582370 I:3 2004 DFUV 20 Oon F:1.9
Imaging ◼ HRCT ◼ MRI ◼ Angiography/ MRA
symptoms Hearing Loss tinnitus Dizziness CSF Otorrhea and Rhinorrhea Facial Nerve Injuries
symptoms ◼ Hearing Loss & tinnitus ◼ Dizziness ◼ CSF Otorrhea and Rhinorrhea ◼ Facial Nerve Injuries
Hearing loss Formal Audiometry Vs, Tuning Fork 71% of patients with Temporal Bone Trauma have hearing loss TM Perforations CHL> 40db suspicion for ossicular discontinuity
Hearing loss ◼ Formal Audiometry vs. Tuning Fork ◼ 71% of patients with Temporal Bone Trauma have hearing loss ◼ TM Perforations ◼ CHL > 40db suspicion for ossicular discontinuity
Hearing loss perior projection of right osseous labyrinth Groove ot greater petrosal on floor of skull Geniculum ot facial nerve Longitudinal Fractures Plane of anterior (suno Cochlear ne Conductive or mixed facal nerve vIl Opening of internal hearing loss Vestibulocochlear nerve IVI lateral horizontal 80% of CHL resolve vestibular nerve spontaneously y of temporal bone Transverse fractures S oi posterior Sensorineural hearing loss s likely to improve
Hearing loss Longitudinal Fractures ◼ Conductive or mixed hearing loss ◼ 80% of CHL resolve spontaneously ◼ Transverse Fractures ◼ Sensorineural hearing loss ◼ Less likely to improve
Dizziness Otic capsule fracture, labyrinthine concussion, Perilymphatic Fistula Perilymphatic Fistulas Fluctuating dizziness and or hearing loss Tulio° s Phenomenon 口 Management 40%o spontaneously close Surgical management
Dizziness ◼ Otic capsule fracture, labyrinthine concussion, Perilymphatic Fistula ◼ Perilymphatic Fistulas ◼ Fluctuating dizziness and/or hearing loss ◼ Tulio’s Phenomenon ◼ Management ◼ 40% spontaneously close ◼ Surgical management