What does a temporal bone CT scan 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 are the 3 regions of the temporal bone?

The temporal bone consists of four parts— the squamous, mastoid, petrous and tympanic parts. The squamous part is the largest and most superiorly positioned relative to the rest of the bone.

What are the markings of the temporal bone?

Terms in this set (12)

Squamous part. Located inferior to the squamous suture.
Zygomatic process. Located at squamous part; a bridge like projection that articulates with the zygomatic bone.
Mandibular fossa.
Tympanic part.
External acoustic meatus.
Styloid process.
Petrous part.
Jugular foramen.

How long does a temporal bone CT take?

This procedure usually takes approximately 30 minutes.

What CT is mastoiditis?

CT scanning of the temporal bone is the standard for evaluation of mastoiditis, with published sensitivities ranging from 87-100%.

How is a tumor of the temporal bone treated?

Treatment of of Temporal Bone (Ear) Tumor. The treatment of benign tumors is its complete removal. If the tumor is small, the surgery can be performed through the ear canal. If the tumor is larger, an incision has to be made from behind the ear to remove some of the bone from behind the ear to allow removal of the full extent of the tumor.

What are the landmarks of the temporal bone?

The major anatomic landmarks of the temporal bones are depicted on axial and coronal CT images ( Figs 1 – 5) and are described in the following subsections.

Is there a CT scan of the temporal bone?

There are a limited number of structures and disease entities in the temporal bone with which one must be familiar in order to proficiently interpret a computed tomographic (CT) or magnetic resonance (MR) imaging study of the temporal bone.

Is the middle ear part of the temporal bone?

The middle ear is an air-filled cavity within the petrous portion of the temporal bone that contains the ossicular chain and is bounded by the tympanic membrane laterally, the inner ear structures (surrounded by the otic capsule and the cochlear promontory) medially, the tegmen tympani superiorly, and the jugular wall (floor) inferiorly (Fig 5).

What does a temporal bone CT scan 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 are the 3 regions…