Which structure is considered to be part of the temporal bone?
The temporal bone contributes to the lower lateral walls of the skull. It contains the middle and inner portions of the ear, and is crossed by the majority of the cranial nerves. The lower portion of the bone articulates with the mandible, forming the temporomandibular joint of the jaw.
Is tinnitus a conductive hearing loss?
This type of hearing loss is called sensorineural. Less commonly, tinnitus is linked to hearing loss caused by a blockage or ear condition that affects the outer or middle ear and stops sound waves from passing into the inner ear. This type of hearing loss is called conductive.
What does a CT scan of the temporal bone show?
Temporal bone CT is a limited kind of head CT that focuses on the lower part of the skull and the surrounding soft tissues, and is often used in patients with hearing loss, chronic ear infections, and middle and inner ear diseases.
What neurological causes tinnitus?
Neurologic causes include head injury, whiplash, multiple sclerosis, vestibular schwannoma (commonly called an acoustic neuroma), and other cerebellopontine-angle tumors.
How is petrous Apicitis treated?
The aforementioned study by Gadre and Chole found that over a 40-year period, antibiotic treatment remained the primary therapy for petrous apicitis, with a reduction in surgical treatment. Antibiotics should be directed at the offending organism, which is typically one of the pseudomonads.
What is the swimmer’s ear?
Outer ear infection Swimmer’s ear is an infection in the outer ear canal, which runs from your eardrum to the outside of your head. It’s often brought on by water that remains in your ear, creating a moist environment that aids the growth of bacteria.
Where is the petrous?
The petrous apex is located in the temporal bone — one of the bones of the skull that houses the structures of the ear. The petrous apex is a difficult area for surgeons to get to; it is essentially just off the midline of the skull base.