Subscribe to RSS
DOI: 10.1055/s-0029-1236166
© Thieme Medical Publishers
Intracochlear Schwannoma
Publication History
Publication Date:
12 August 2009 (online)
ABSTRACT
Intralabyrinthine schwannomas are benign, slow-growing tumors that originate from Schwann cells lining the terminal ends of the cochlear and vestibular nerves. Magnetic resonance imaging (MRI) with gadolinium is considered the best diagnostic tool for this disease. Kennedy et al proposed a classification system, based upon the MRI observations, that identifies seven different classes according to the site of the tumor: intravestibular, intracochlear, intravestibulocochlear, transmodiolar, transmacular, transotic, and tympanolabyrinthine. A case of a patient undergoing a 2-year follow-up with serial MRI and managed with a wait-and-see strategy is described. The rationale of the diagnosis and the different treatments of choice are discussed.
KEYWORDS
Intralabyrinthine schwannoma - MRI - surgery - follow-up
REFERENCES
- 1 Brogan M, Chakeres D W. Gd-DTPA-enhanced MR imaging of cochlear schwannoma. AJNR Am J Neuroradiol. 1990; 11 407-408
- 2 Casselman J W, Kuhweide R, Ampe W, Meeus L, Steyaert L. Pathology of the membranous labyrinth: comparison of T1- and T2-weighted and gadolinium-enhanced spin-echo and 3DFT-CISS imaging. AJNR Am J Neuroradiol. 1993; 14 59-69
- 3 Jackson L E, Hoffmann K K, Rosenberg S I. Intralabyrinthine schwannoma: subtle differentiating symptomatology. Otolaryngol Head Neck Surg. 2003; 129 439-440
- 4 Kennedy R J, Shelton C, Salzman K L, Davidson H C, Harnsberger H R. Intralabyrinthine schwannomas: diagnosis, management, and a new classification system. Otol Neurotol. 2004; 25 160-167
- 5 Tieleman A, Casselman J W, Somers T et al.. Imaging of intralabyrinthine schwannomas: a retrospective study of 52 cases with emphasis on lesion growth. AJNR Am J Neuroradiol. 2008; 29 898-905
Giuseppe MagliuloM.D.
Via Gregorio VII n 80
00165 Rome, Italy
Email: giuseppemagliuloorl@yahoo.com