Cases reported "Neuroma, Acoustic"

Filter by keywords:



Filtering documents. Please wait...

11/30. Primary melanocytic tumor of the cerebellopontine angle mimicking a vestibular schwannoma: case report.

    OBJECTIVE: The majority of tumors of the cerebellopontine angle (CPA) are benign. We report the case of a primary malignant melanoma of the CPA that mimicked a vestibular schwannoma (acoustic neuroma). We discuss the differential diagnosis and prognosis of melanotic lesions at this location. CLINICAL PRESENTATION: A 49-year-old man presented with a 7-year history of unilateral deafness and a several month history of imbalance, intractable nausea and vomiting, as well as weight loss. A neurological work-up revealed a large tumor in the left CPA radiographically diagnosed as a vestibular schwannoma. INTERVENTION: A translabyrinthine approach revealed a pigmented, vascular neoplasm encasing vessels and cranial nerves of the left CPA. The tumor was subtotally resected, and a histopathological diagnosis of melanoma was made. The patient had no history of cutaneous melanoma and no other site of disease was ever discovered. CONCLUSION: This case most likely represents primary melanoma of the central nervous system that mimicked a vestibular schwannoma. The differential diagnosis of melanotic lesions of the CPA is discussed as are the prognostic implications of each diagnosis.
- - - - - - - - - -
ranking = 1
keywords = neoplasm
(Clic here for more details about this article)

12/30. recurrence of acoustic neurilemoma as a malignant spindle-cell neoplasm. Case report.

    A 75-year-old man presented with a right cerebellopontine angle tumor 11 months after complete macroscopic resection of a right acoustic neurilemoma. Histological examination of the recurrent tumor showed a malignant spindle-cell neoplasm with positive staining for S-100 protein. The patient had no stigmata of von Recklinghausen's disease. It is proposed that this recurrence represents progression from a benign to a malignant acoustic nerve-sheath tumor, an event that is extremely rare outside the clinicopathological context of neurofibromatosis.
- - - - - - - - - -
ranking = 5
keywords = neoplasm
(Clic here for more details about this article)

13/30. A misdiagnosed case of neurinoma of the 8th cranial nerve and adult respiratory distress syndrome.

    A case of a 81-year old female patient with a clinically non-verified neurinoma of the 8th cranial nerve is presented. According to symptoms and radiological examinations, esophageal neoplasm with esophago-tracheal fistula was suspected. The patient died on the 4th day after radiological examination due to progressive respiratory failure. autopsy revealed neurinoma of the 8th cranial nerve as well as adult respiratory distress syndrome due to aspiration of the radiological contrast medium.
- - - - - - - - - -
ranking = 1
keywords = neoplasm
(Clic here for more details about this article)

14/30. Occurrence of both neurofibromatoses 1 and 2 in the same individual with a rapidly progressive course.

    We describe a family in which the father had neurofibromatosis-1 and the mother neurofibromatosis-2. Their son presented at the age of 8 years with bilateral acoustic neuromas, meningioma, and numerous neurofibromas. We believe that the occurrence of the genes responsible for both forms of neurofibromatosis in the same patient had a synergistic effect on the early rapid growth of neurofibromatoses 1 and 2 neoplasms.
- - - - - - - - - -
ranking = 1
keywords = neoplasm
(Clic here for more details about this article)

15/30. The influence of magnetic resonance tomography on diagnosis and therapy in patients with intracranial manifestation of neurofibromatosis (Recklinghausen disease).

    Recent research into the natural course of neurofibromatosis has revealed an outstandingly high proportion of central nervous system malignancies as well as cancers of various other organs. Due to the lack of ionizing radiation, the extraordinary reconstruction in the frontal and parasaggital planes as well as the diagnosis of intracanalicular acoustic neurinomas and intraorbital tumors, magnetic resonance tomography (MRT) is indicated for control of patients with neurofibromatosis.
- - - - - - - - - -
ranking = 0.12637138985796
keywords = cancer
(Clic here for more details about this article)

16/30. Melanotic schwannoma of the acoustic nerve.

    Melanotic schwannoma is a rare neoplasm, with only 23 previously reported cases. We report an additional case of a melanotic schwannoma arising from the acoustic nerve in a 74-year-old man who had a probable forme fruste of neurofibromatosis. We briefly review the literature of this neoplasm and discuss theories regarding the histogenesis of these tumors.
- - - - - - - - - -
ranking = 2
keywords = neoplasm
(Clic here for more details about this article)

17/30. Surgery of the skull base.

    Tumors involving the base of the skull are often occult and may become quite large before detection is possible. Symptomology varies depending upon the nature of the tumor and its placement. These neoplasms have frequently been considered inoperable simply because of their location, but in recent years microsurgical technique and high speed air drills have allowed the modern temporal bone surgeon to gain improved access to the skull base. A wide variety of surgical approaches to tumors in this area have been described in the past 20 years: translabyrinthine, middle fossa, transcochlear, retrolabyrinthine, retrosigmoid, transpalatal-transclival, and through the jugular bulb. The purpose of this paper is to review the indications, complications, and results of each of these procedures in relation to specific tumors involving the skull base. case reports illustrate the diagnosis and surgical management of a variety of unusual neoplasms, including an extradural meningioma of the temporal bone and clivus, a low grade squamous cell carcinoma on the tegmen in a radical cavity, a large primary cholesteatoma, an osteoblastoma of the temporal and occipital bones, an XIth nerve neuroma in the jugular bulb area, and an osseous hemangioma involving the facial nerve at the geniculate ganglion.
- - - - - - - - - -
ranking = 2
keywords = neoplasm
(Clic here for more details about this article)

18/30. Acoustic tumors in the young adult.

    Despite the widely held notion that acoustic neuroma is a disease of the middle and late years of life, this neoplasm frequently begins in young adults. It has been reported as occurring in a patient as young as seven years of age. Often, patients in their 20s or 30s may have minimal symptoms despite sizable tumors. Constant alertness for such lesions is essential for early diagnosis and optimal prognosis.
- - - - - - - - - -
ranking = 1
keywords = neoplasm
(Clic here for more details about this article)

19/30. Tumor involvement of the facial nerve.

    Tumors involving the facial nerve are rare and challenging in both diagnosis and treatment. In this paper we report 18 cases of benign and malignant neoplasms involving the temporal portion of the facial nerve. The selection of those patients with facial paralysis who require detailed evaluation is discussed. Often, despite thorough evaluation of these patients, a preoperative diagnosis is unavailable or erroneous. An occasional patient may require surgical exposure of the nerve from the middle cranial fossa to the parotid gland.
- - - - - - - - - -
ranking = 1
keywords = neoplasm
(Clic here for more details about this article)

20/30. Multiple primary malignant neoplasms.

    A 75-year-old man developed neurilemmoma of the left eighth cranial nerve, adenomatous polyp of the sigmoid colon, adenocarcinoma of the prostate, mixed cell type lymphoma of the right neck, and infiltrating ductal carcinoma of the right breast metachronously during a period of 38 years. The cancer of the right breast occurred 7 years after the long-term stilbestrol treatment of prostatic carcinoma, which suggests a causal relationship between the hormonal therapy and development of breast carcinoma.
- - - - - - - - - -
ranking = 4.126371389858
keywords = neoplasm, cancer
(Clic here for more details about this article)
<- Previous || Next ->


Leave a message about 'Neuroma, Acoustic'


We do not evaluate or guarantee the accuracy of any content in this site. Click here for the full disclaimer.