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What does the word Petrous mean?

What does the word Petrous mean?

: of, relating to, or constituting the exceptionally hard and dense portion of the human temporal bone that contains the internal auditory organs.

Why is it called Petrous?

Petrous comes from the Latin word petrosus, meaning “stone-like, hard”. It is one of the densest bones in the body. The petrous bone is important for studies of ancient DNA from skeletal remains, as it tends to contain extremely well-preserved DNA.

What is the petrous bone?

The petrous part of the temporal bone (or more simply petrous temporal bone, PTB) forms the part of skull base between the sphenoid and occipital bones.

What is a Lithoid?

lithoid in American English (ˈlɪθˌɔɪd ) adjective. having the nature of a stone; stonelike. : also lithoidal (lɪˈθɔɪdəl )

Which is the best definition of the word petrous?

Definition of petrous : of, relating to, or constituting the exceptionally hard and dense portion of the human temporal bone that contains the internal auditory organs

Where is the petrous apex in the head?

The petrous apex is located in the center of the head approximately 2-3 inches from the outside of your ear. It is one of the most inaccessible areas to reach in the skull. The petrous apex can have lesions and tumors within it. The most common type of lesion is a petrous apex fluid filled cyst.

What is the definition of a pneumatized petrous apex?

Definition of Terms A petrous apex is considered pneumatized if it contains one or more air cells. A patient is considered to have asymmetric fatty marrow in the petrous apex if a marrow space is identified that follows the same signal characteristics as orbital fat on T1-and T2-weighted axial MR images. Also, high signal on T1-

What kind of lesions can be found in the petrous apex?

It is one of the most inaccessible areas to reach in the skull. The petrous apex can have lesions and tumors within it. The most common type of lesion is a petrous apex fluid filled cyst. This petrous apex cyst may take the form of a petrous apex cholesterol granuloma, cholesteatoma (epidermoid), or other type of lesion.