Track topics on Twitter Track topics that are important to you
Meningiomas of the posterior fossa represent a heterogeneous group of tumors regarding difficulty of resection and functional outcome. The aim of this review was to focus on tumors located mainly on the posterior surface of the petrous bone and threatening hearing and facial functions. An anatomical classification was used to evaluate surgical outcome depending on the relationship of the tumor to the internal auditory meatus. The authors performed a retrospective chart review of 53 consecutive patients operated on for a posterior petrous bone meningioma in a tertiary referral center and a literature review. Tumors were classified in four groups according to the modified Desgeorges and Sterkers classification: posterior petrous (P; 17 tumors), meatus and internal auditory canal (M; 12 tumors), petrous apex without invasion of the internal auditory canal (A; 9 tumors), and cerebellopontine angle with invasion of the internal auditory canal (AMP; 15 tumors). The facial function was preserved in 100% of P and A tumors, 75% of group M tumors, and 53% of AMP tumors. Hearing preservation was attempted only in P, A, and M groups where rates of serviceable hearing preservation were 82%, 80%, and 66%, respectively. The cumulative rate of hearing preservation for AMP tumors was 45% in our literature review. The increased facial morbidity associated with AMP tumors compared with other groups was also confirmed by the review of the literature. In conclusion, this study shows that among posterior petrous bone meningiomas, tumors invading the internal auditory canal present with increased postoperative functional morbidity in spite of a tailored approach regarding dural insertion.
Department of Neurosurgery, Hopital Beaujon, 100 bvd du Général Leclerc, 92110, Clichy, France.
This article was published in the following journal.
Name: Neurosurgical review
The evolution of Petroclival Meningiomas (PMs) surgical treatment has lead nowadays to a tendency to abandon complex petrous approaches and return to "less aggressive" skull base approaches.
Surgical resection of petroclival meningiomas remains challenging due to their deep location and relationship to vital neurovascular structures. Although the natural history of these tumors involves a...
Large-scale genomic analyses of ancient human populations have become feasible partly due to refined sampling methods. The inner part of petrous bones and the cementum layer in teeth roots are current...
Lumbosacral spinal tuberculosis is rare in current population. Previous studies have reported effective outcomes about anterior, antero-posterior and posterior surgery for treating tuberculosis of lum...
The optimal surgical procedure for treating kyphotic deformity with Andersson lesions (ALs) in ankylosing spondylitis (AS) patients is controversial. The one-stage posterior osteotomy and bone graft f...
Meningiomas with malignant components include grade II meningiomas (GIIM, the most common ones) and grade III meningiomas (GIIIM). They represent 5-35% of all meningiomas. Histological dia...
RATIONALE: Interferon alfa may interfere with the growth of cancer cells. PURPOSE: Phase II trial to study the effectiveness of interferon alfa in treating patients with recurrent unresec...
The blood loss will be compared in middle fossa meningiomas which will receive pealing of the outer layer of the lateral wall of the cavernous sinus and those which will not revive pealing...
The primary purpose of this randomized trial is to compare the efficacy of an ultrasonic bone scalpel (or osteotome device) with standard of care surgical instruments during posterior spin...
The goal of this clinical research study is to learn if the study drug AZD2014 can shrink growing or symptomatic meningiomas.
The infratentorial compartment that contains the CEREBELLUM and BRAIN STEM. It is formed by the posterior third of the superior surface of the body of the sphenoid (SPHENOID BONE), by the occipital, the petrous, and mastoid portions of the TEMPORAL BONE, and the posterior inferior angle of the PARIETAL BONE.
The posterior part of the temporal bone. It is a projection of the petrous bone.
The dense rock-like part of temporal bone that contains the INNER EAR. Petrous bone is located at the base of the skull. Sometimes it is combined with the MASTOID PROCESS and called petromastoid part of temporal bone.
The compartment containing the anterior extremities and half the inferior surface of the temporal lobes (TEMPORAL LOBE) of the cerebral hemispheres. Lying posterior and inferior to the anterior cranial fossa (CRANIAL FOSSA, ANTERIOR), it is formed by part of the TEMPORAL BONE and SPHENOID BONE. It is separated from the posterior cranial fossa (CRANIAL FOSSA, POSTERIOR) by crests formed by the superior borders of the petrous parts of the temporal bones.
A small bony canal linking the vestibule of the inner ear to the posterior part of the internal surface of the petrous TEMPORAL BONE. It transmits the endolymphatic duct and two small blood vessels.
Osteoporosis is a disease in which the bones become extremely porous, are subject to fracture, and heal slowly, occurring especially in women following menopause and often leading to curvature of the spine from vertebral collapse. Follow and track&n...
Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time, through an organ such as the ear. Sound may be heard through solid, liquid, or gaseous mat...