| Abstract [eng] |
Acoustic neurinoma is a benign tumour located on the VIIIth cranial nerve - the vestibulocochlear nerve (n. vestibulocochlearis), in the pontocerebellar corner, near the porus acusticus. It is the most common tumor in the cerebellopontine angle with the incidence rate being 1 in 1000. Symptoms may be varied, such as hearing loss, unilateral tinnitus and balance problems. Risk factors for this tumour include female sex, ionising radiation and leisure noise. In the first case, a 45-year-old female patient presented for a consultation because of persisting hearing loss, difficulty in perceiving sounds and speech with her right ear, ringing and pain around her right ear. A magnetic resonance imaging scan diagnosed an acoustic neurinoma of the right pontocerebellar angle. The patient was treated in collaboration with otorhinolaryngologists and neurosurgeons. Surgical treatment was performed with retrosigmoid craniotomy on the right side. Postoperative complications such as gaze nystagmus, dysarthria, dysphagia, persistent impaired hearing in the right ear, and balance and coordination problems were observed. In the second case, a 39-year-old female patient was consulted at the Ear, Nose, Throat and Eye Clinic for congestion and tinnitus of the left ear. As the symptoms progressed, a magnetic resonance imaging scan was performed and an acoustic neurinoma on the left was diagnosed, with the „Wait and Scan“ method chosen after consulting with a neurosurgeon. No significant negative dynamics were observed during follow-up. In cases of acoustic neurinomas, appropriate diagnosis, treatment choice, and close follow-up by a team of physicians in multidisciplinary centers are important. the treatment options include conservative, surgical treatment as well as radiotherapy. Early diagnosis and active follow-up are important to achieve good treatment results. |
