Posterior petrous bone meningiomas: surgical experience in 53 patients and literature review.
Summary of "Posterior petrous bone meningiomas: surgical experience in 53 patients and literature review."
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
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21670954
- DOI: http://dx.doi.org/10.1007/s10143-011-0333-6
Abstract Objective: Few studies describe peptide receptor radionuclide therapy (PRRT) using (90)Y- or (177)Lu-labeled peptides in patients with recurrent meningiomas. No clinical data about (111)In-Pe...
Objective. The histologic grades of meningiomas have a significant impact on the risk of recurrence, prognosis, and the need for adjuvant treatment such as radiation therapy. The purpose of this study...
Meningiomas are one of the most common tumors that arise within the central nervous system; they represent up to 30% of all primary intracranial tumors. Extradural meningiomas are rare (
Hemangioblastomas (HBLs) are benign neoplasms that contribute to 1-2.5% of intracranial tumors and 7-12% of posterior fossa lesions in adult patients. HBLs either evolve hereditarily in association wi...
Conventional open surgery of large meningiomas has proven to be challenging even in experienced hands. Intense retraction and dissection around neurovascular structures increase morbidity and mortalit...
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...
Meningiomas account for 20% of primary adult brain tumors, occurring at an annual incidence of 6 per 100,000 (Louis, Scheithauer et al. 2000). Complete surgical resection is the treatment ...
The role of operative fixation of unstable, displaced lateral malleolus fractures is well-established (Mayer, Mak, and Yablon). However, the optimal type of fixation remains the subject of...
The purpose is to determine if differences exist in the attainment of functional milestones that reflect activities of daily living between mini-posterior and direct anterior approach tota...
The purpose of the study is to compare the effect of different lower limb amputation surgical procedures on leg bone integrity and rehabilitation outcome.
Medical and Biotech [MESH] Definitions
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.