와우내 신경초종 2예
Two Cases of Intracochlear Schwannoma
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Intracochlear schwannoma is a rare tumor arising from Schwann cells limited to the cochlea. Most of the cases have been found incidentally at autopsies or during surgeries. Today, gadoliniumenhanced magnetic resonance imaging (MRI) has made the diagnosis possible before surgical intervention. Intracochlear schwannoma presents unilateral progressive hearing loss, tinnitus or vague unsteadiness, all of which are common otologic symptoms seen in the outpatient department. Therefore, a high index of suspicion to detect this tumor is needed. We report two cases of intracochlear schwannoma: one case was diagnosed at gadolinium-enhanced MRI and removed by modified transotic approach preserving external auditory canal; the other case was followed up closely without the intervention of surgery.
Abstract
Intracochlear schwannoma is a rare tumor arising from Schwann cells limited to the cochlea. Most of the cases have been found incidentally at autopsies or during surgeries. Today, gadoliniumenhanced magnetic resonance imaging (MRI) has made the diagnosis possible before surgical intervention. Intracochlear schwannoma presents unilateral progressive hearing loss, tinnitus or vague unsteadiness, all of which are common otologic symptoms seen in the outpatient department. Therefore, a high index of suspicion to detect this tumor is needed. We report two cases of intracochlear schwannoma: one case was diagnosed at gadolinium-enhanced MRI and removed by modified transotic approach preserving external auditory canal; the other case was followed up closely without the intervention of surgery.
참고문헌 (13)
- Roland PS, "Intracochlear schwannoma", Otolaryngol Head Neck Surg, 119(6), pp.681~684 (1998)
- Hegarty JL, "The value of enhanced magnetic resonance imaging in the evaluation of endocochlear disease", Laryngoscope, 112(1), pp.8~17 (2002)
- 최재영, "미로내 신경초종 2예", 대한이비인후과학회지 두경부외과학, 49(4), pp.434~438 (2006), 대한이비인후과학회
- Neff BA, "Intralabyrinthine schwannomas", Otol Neurotol, 24(2), pp.299~307 (2003)
- Kennedy RJ, "Intralabyrinthine schwannomas: diagnosis, management and a new classfication system", Otol Neurotol, 25(2), pp.160~167 (2004)
- Saeed SR, "Intralabyrinthine schwannoma shown by magnetic resonance imaging", Neuroradiology, 36(1), pp.63~64 (1994)
- Doyle KJ, "Intralabyrinthine schwannomas", Otolaryngol Head Neck Surg, 110(6), pp.517~523 (1994)
- Jia H, "Intralabyrinthine schwannomas: symptoms and managements", Auris Nasus Larynx, 35(1), pp.131~136 (2008)
- Birzgalis AR, "Intralabyrinthine schwannoma", J Laryngol Otol, 105(8), pp.659~661 (1991)
- Grayeli AB, "Diagnosis and management of intracochlear schwannomas", Otol Neurotol, 28(7), pp.951~957 (2007)
- Gersdorff MC, "Intracochlear schwannoma", Eur Arch Otorhinolaryngol, 253(6), pp.374~376 (1996)
- Nishimura T, "Progressive hearing loss in intracochlear schwannoma", Eur Arch Otorhinolaryngol, 265(4), pp.489~492 (2008)
- Tieleman A, "Imaging of intralabyrinthine schwannomas: a retrospective study of 52 cases with emphasis on lesion growth", NR Am J Neuroradiol, 29(5), pp.898~905 (2008)