What is HRCT temporal bone?

What is HRCT temporal bone?

HRCT temporal bone is an efficacious modality for accurate delineation of the anatomy and pathological involvement of temporal bone. We can hence conclude HRCT is useful for diagnosis, surgical planning and management of temporal bone pathologies.

What is mastoid sinus?

The mastoid air cells are air-filled spaces like other facial sinuses. The normal mastoid spaces are black, with a multitude of small cells created by fine bony partitions. Mastoiditis can be recognized on facial CT, although the field of view of facial CT often does not fully include the mastoid air cells.

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 canals of temporal bone?

Note that there are several important canals located within the petrous part of the temporal bone described earlier, and these are:

• Carotid canal.
• Facial canal.
• Canaliculus for chorda tympani.
• Tympanic canaliculus.
• Musculotubal canal.
• Cochlear canaliculus.
• Vestibular aqueduct.
• Internal acoustic meatus.

Is styloid process of temporal bone?

The styloid process (SP) consists of two narrow and elongated bony projections of the temporal bone. They are located anteriorly to the stylomastoid foramen on the right and left sides of base of the skull [1].

What does CT of temporal bone show?

In the temporal bone region, therefore, CT is useful for assessing the margin and patency of the external auditory canal (EAC); thickness of the tympanic membrane, as it is bordered on either side by air, and whether there may be myringosclerosis, perforation, or retraction; margins, aeration, and opacities of the …