PROBLEM Approximately 90% of tumours of cerebellopontine angle and internal auditory canal are vestibular schwannomas (acoustic neuromas) and meningiomas. Lipochoristomas are rare benign masses that represent only 0.15% of cases. METHODOLOGY We report the case of a 39-year-old man who consulted us for right-sided hearing loss and tinnitus. RESULTS Tonal audiometry showed a down-sloping righ...

Neoplasms arising within the internal acoustic canal (IAC) and cerebellopontine angle (CPA) are most commonly of neuroepithelial origin. Vestibular schwannoma represents the most common lesion in the IAC (80–90%) with meningiomas comprising nearly all the rest (10%) of IAC tumors.1–3 Rare tumors include epidermoids, lipochoristomas, and metastatic tumors. Each of these lesions has typical imagi...

A 73-year-old female developed right facial paralysis of House-Brackmann (H-B) grade III and was diagnosed with Bell's palsy. After three months steroid therapy, she progressive hearing loss, an MRI revealed a tumor in the internal auditory canal. Within few months, nerve palsy recurred, patient treated Gamma Knife radiosurgery. The irradiated region disappeared, but new dysphagia observed, par...

introduction: first branchial cleft anomalies manifest with duplication of the external auditory canal.   case report: this report features a rare case of microtia and congenital middle ear and canal cholesteatoma with first branchial fistula. external auditory canal stenosis was complicated by middle ear and external canal cholesteatoma, but branchial fistula, opening in the zygomatic root and...

The majority of neoplasms within the external auditory canal are benign. Management of these primary tumors and their local recurrences are discussed herein. We present a case of an isolated myxoma of the external auditory canal with a review of the common histopathological and radiographic features. Although rare, this highlights the possibility of encountering benign tumor types that carry as...

Glandular tumors of the external auditory canal are rare; their etiopathogenesis is uncertain. The term ceruminoma, often used for these tumors, is imprecise. The 1978 who classification is reviewed. The authors describe their experience with 5 cases which illustrate the salient diagnostic therapeutic, and prognostic characteristics of these tumors.

Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usually the result of an iatrogenic injury during removal. The retrosigmoid approach is commonly associated with leaks that occur through the lateral end of the internal auditory canal, through the perilabyrinthine cells extending to the region of the internal auditory canal, or through the retrosigmoid ...

The case of a 17-year-old patient with progressive unilateral sensorineural hearing loss and temporal bone malformations concerning for internal auditory canal meningocele with translabyrinthine/perilabyrinthine cerebrospinal fluid fistula is presented with associated computed tomography and magnetic resonance imaging. As the second reported case of an unruptured internal auditory canal meningo...

We present the case of a 48-year-old woman with a cerebellopontine angle meningioma who presented with sensorineural hearing loss. The lesion was nearly 4 cm in maximum dimension and extended into the internal auditory canal. Hearing loss resulting from cerebellopontine angle tumor is most commonly caused by vestibular schwannomas, which arise directly from the sheath of the vestibular nerve (V...

Meningioma of the internal auditory canal is very rare. There are only 15 previous reports of intracanalicular meningioma. The authors add a case report of a patient with meningioma of the internal auditory canal. A 31-year-old woman presented with a one-year history of headache, dizziness, hearing loss and left facial paralysis. An MRI of the temporal bone demonstrated a tiny isointense intrac...