petrous


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

petrous

[′pe·trəs]
(materials)
Referring to a material whose hardness resembles that of stone.
References in periodicals archive ?
The internal acoustic meatus (IAM) is a short bony canal that lies between the posterior surface of the petrous pyramid and the bony labyrinth within the dense petrous bone (Standring, 2005); the IAM opens medially to the posterior canal fossa through the porus acusticus.
Cholesterol granulomas are the most common pathologic entities in the petrous apex, accounting for 60% of all lesions in this area.
Radical or Total Temporal Bone Resection.--This radical procedure is indicated for tumors that involve the petrous apex and extend intracranially or into the infratemporal fossa.
Through this approach, we were able to reach the area of the petrous apex over the cochlea and to identify the main anatomical structures to preserve, such as the lateral semicircular canal and the stapes.
Cases of involvement of labyrinth, petrous temporal bone and intracranial compartments were not encountered.
Mostly, the petrous apex is non-aerated and composed of dense bone and bone marrow (Figure 1).
(1) Most commonly these occur intracranially including at the cerebral convexities, sphenoid ridges, and petrous ridges.
Lesions of the petrous temporal bone are characterized by facial paralysis and hearing loss.
The favourite bone to get DNA from is the petrous bone - the inner-ear bone that extends inside the skull.
'EAR WE GO: The favourite bone to get DNA from is the petrous bone - the inner-ear bone that extends inside the skull.
There were also bilateral lesions of the petrous temporal bones.
Other commonly affected bones are long bones (tibia, femur, fibula, humerus, radius, and ulna), vertebrae, and the other bones including patella, petrous apex, scapula, and metacarpals.