INTRODUCTION Acoustic neuroma usually presents as an unilateral tumor, seldom - bilateral and rarely in coexistence with other central nervous system neoplasms. The following paper reports such a case of a 21-year-old male patient presented with sudden deafness in left ear accompanied with tinnitus and vertigo. Symptoms started 4 weeks prior hospitalization. Their aggravation has been observed ...

The false negative rate of the auditory brainstem response (ABR) for the detection of vestibular schwannoma (VS; acoustic neuroma) has been reported to range from 2 to 9 percent. The introduction of magnetic resonance with gadolinium contrast (Gd MRI) may be expected to raise the false negative rate, because smaller tumors can now be detected. We present two cases that illustrate some of the co...

An overview is presented of the common and uncommon diseases of the inner ear and of the cochleovestibular nerve within the internal acoustic meatus and cerebellopontine angle cistern causing sensorineural deafness.An imaging-pattern-based approach is used to help detect disease and narrow the differential diagnosis. Main Messages • The most common s...

Schwannomas most commonly manifest as acoustic neuromas in the vestibulo-cochlear nerve (CN VIII). These may occur unilaterally as primary tumors, or bilaterally secondary to neurofibromatosis type 2. More rarely, they present in extra-cranial sites, including the gastrointestinal tract. Gastrointestinal schwannomas are believed to arise from Auerbach's plexus in the muscularis propria, and are...

Intralabyrinthine schwannomas (ILSs) are rare benign tumors arising from the distal part of the cochleovestibular nerve confined within the labyrinth. Patients with ILSs complain of hearing loss, vertigo, tinnitus, and ear fullness. Surgical treatment of ILS is performed in special cases such as in cases of patients with nonserviceable hearing, progressive hearing loss, intractable vertigo, or ...

Schwannomas are usually characterized by a mass that displays rapid and intense contrast enhancement on computed tomography (CT) and magnetic resonance (MR) imaging. Although some cases are associated with cyst formation, a solid component is nearly always visualized. Schwannomas can be associated with any nerve. Schwannomas of the ninth, 1Oth, and 11th cranial nerves, also called neurinomas of...

PURPOSE Although headache in vestbibular schwannoma (VS) is uncommon as an initially presenting symptom, headache in VS is usually associated with tumor growth due to various factors, especially abrupt increase in size. We discuss various factors which influence rapid tumor growth including intratumoral hemorrhage and cystic change of tumor. CASE REPORT A 68-years old female presented with su...

Approximately 6 to 16% of patients with trigeminal neuralgia symptoms present intracranial tumors, the most common being the vestibular schwannoma (acoustic neuroma). Some symptoms reported by patients include hearing loss, tinnitus, headaches, vertigo and trigeminal disturbances. An increased muscle response in the surrounding head and neck musculature may also be observed, which mimics signs ...