Document Detail

Surgical removal of chondroma of the petrous apex resulting in hearing improvement--case report.
MedLine Citation:
PMID:  20185882     Owner:  NLM     Status:  MEDLINE    
An 18-year-old male presented with a chondroma in the petrous apex manifesting as major complaints of headaches and sensorineural hearing disturbance on the right. Head computed tomography and magnetic resonance imaging revealed a neoplastic lesion in the right petrous apex, which had bulged to compress the internal auditory meatus. Surgical removal improved his hearing with normalization of the postoperative air conduction threshold by reduction of the pressure of the internal auditory meatus, suggesting that the function of the cochlea was retained and the tumor was compressing the cochleal nerve at the level of the internal auditory meatus. Histological examination showed the tumor consisted of hyaline cartilage tissue without cellular atypia and the diagnosis was chondroma.
Tetsuro Sameshima; Rokuya Tanikawa; Toshihide Sugimura; Naoto Izumi; Toshitaka Seki; Takahiro Maeda; Toshiyuki Tsuboi; Masaaki Hashimoto; Tomofumi Osawa; Teruo Kimura; Kazuki Nabeshima
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Neurologia medico-chirurgica     Volume:  50     ISSN:  1349-8029     ISO Abbreviation:  Neurol. Med. Chir. (Tokyo)     Publication Date:  2010  
Date Detail:
Created Date:  2010-02-26     Completed Date:  2010-06-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400775     Medline TA:  Neurol Med Chir (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  147-9     Citation Subset:  IM    
Abashiri Neurosurgical Hospital, Abashiri, Hokkaido.
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MeSH Terms
Chondroma / complications*,  pathology*,  surgery
Cochlear Nerve / physiopathology
Craniotomy / methods
Decompression, Surgical / methods
Ear, Inner / physiopathology
Hearing Loss / etiology*,  physiopathology,  surgery
Magnetic Resonance Imaging
Neurosurgical Procedures / methods
Petrous Bone / pathology*,  radiography,  surgery
Recovery of Function / physiology
Skull Base Neoplasms / complications*,  pathology*,  surgery
Tomography, X-Ray Computed
Treatment Outcome

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