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At least 19 recordsLinked to original sources
PubMed1977

Ancient neurilemmoma (schwannoma).

A clinical and light microscopic study of 11 patients with ancient neurilemmoma is presented. Ancient neurilemmoma is a cellular form of ordinary neurilemmoma, showing nuclear polymorphism and hyperchromasia. Seven patients were female and 4 were male; their ages ranged between 37 years and 81 years, with a median of 59 years. Seven tumours were 2.5 cm or larger in the widest diameter, and had been slowly enlarging for one year or more. All tumours were solitary, encapsulated showing nuclear polymorphism and hyperchromasia without any mitotic activity. The differential diagnosis is discussed. Follow-up information available on all patients confirmed that the clinical course is benign.

Adult↗
PubMed1975

"Epi-" and intramedullary neurilemmoma of the spinal cord with denervation atrophy in the related skeletal muscles.

The autopsy of a 68-year-old male who died of cardiac infarction revealed an ep - and intramedullary neurilemmoma of the spinal cord as an associated finding half a year prior to death. The patient had suffered from progressive weakness and sensory disturbances of the lower limbs together with muscular wasting for 6 months. Repeated neurological examinations had led to the diagnosis of an intraspinal space occupation which, however, could not be substantiated by myelography because of its surprisingly small size. The Schwann cell proliferation originated from the adventitia of the epi- and intramedullary vessels of the conus medullaris. The main tumor mass was epi-medullary and extended into the medullary parenchyma via the penetrating vessels forming intramedullary nodules. The special findings in the present case seem to support the hypothesis that intramedullary neurilemmomas originate from the perivascular nerve endings.

Aged↗
PubMed1978

Central neurilemmoma of the jaws. Review of literature and case report.

Neurilemmomas presenting as primary central bone tumors are extremely rare. Only 21 cases have been reported to have arisen in the jaws; all except for one have occurred in the mandible. The majority of these have been associated with the inferior dental nerve. A case of a central neurilemmoma arising in the anterior mandible is reported. Its probable origin is from one of the alveolar branches of the incisive nerve--an unusual site in the mandible. The radiographic features include expansion of cortical bone, resorption of roots of teeth, the presence of lace-like bony septa and a spotty calcification within the tumor. The treatment and the prognosis are briefly discussed.

Child↗
PubMedDate not supplied

Malignant parapharyngeal schwannoma (neurilemmoma).

A malignant parapharyngeal neurilemmoma developed in a 45-year-old woman who had had a benign solitary neurilemmoma removed from the same area nine years previously. Incomplete excision was achieved through a mandibulotomy approach. Malignant schwannoma usually is associated with neurofibromatosis and has a poor prognosis, spreading along the nerve of origin or by blood stream. Small localized tumors should be treated aggressively by surgery. The possibility that a previously benign schwannoma underwent malignant transformation must be considered.

Adult↗
PubMed1978

Subarachnoid hemorrhage and papilledema due to a cervical neurilemmoma. Case report.

An unusual case of a cervical neurilemmoma is presented. A 67-year-old man developed papilledema on two occasions in association with the symptoms and signs of a subarachnoid hemorrhage (SAH). He proved to have an otherwise asymptomatic cervical neurilemmoma. It is suggested that both acute and subclinical bleeding from such tumors may sometimes underlie the development of raised intracranial pressure occasionally encountered. The clinical clue to the spinal origin of the SAH was an acute onset with root pain. This case is discussed with reference to similar cases in the literature.

Aged↗
PubMed1979

Neurilemmoma of the parapharyngeal space. Report of three cases and review of the literature.

The clinical pre-operative diagnosis of parapharyngeal neurilemmoma is frequently missed. Bimanual palpation of the mass is the most rewarding clinical investigation. Intra-oral incisional biopsy is to be prescribed in case of benign tumor. Treatment is achieved by total excision by external approach. Recurrence rates in benign lesions are low but high with malignant tumors. Three cases of parapharyngeal neurilemmoma are presented.

Adult↗
PubMedDate not supplied

Conservation of hearing in acoustic neurilemmoma excision.

Conservation of hearing in acoustic neurilemmoma surgery is possible by the suboccipital route. The hearing preservation prognosis decreases as the size of the cerebellopontine angle neoplasm increases. Von Recklinghausen disease spells a poor prognosis for hearing. Some hearing was retained in seven of ten patients with preoperative hearing. Three patients retained postoperative hearing levels and speech sound discrimination equal to preoperative levels. One patient had a progressive high-frequency sensorineural hearing loss in the nontumor ear and was fitted with a hearing aid for the postoperative ear; he now has successful binaural hearing function. Gentle technique, microhemostasis, special instrumentation, and well-developed surgical craft are essential for preserving the microstructures necessary for hearing. Furthermore, the suboccipital approach for neurilemmomas less than 2 cm gives good surgical exposure and a reasonable chance to save hearing.

Audiometry↗
PubMed1979

Trigeminal neurilemmoma presenting as a sphenoid sinus mass.

Trigeminal neurilemmomas have been known to invade the posterior fossa. Infratemporal fossa, encroach upon the lateral wall of the sphenoid sinus and extend along the three divisions of the trigeminal nerve. Herein described, is a patient with a trigeminal neurilemmoma that extended into the sphenoid sinus, necessitating transphenoidal excision.

Adult↗
PubMed1978

An evaluation of current diagnostic radiologic modalities in the investigation of acoustic neurilemmomas.

The radiologic investigation of patients with suspected acoustic neurilemmomas may include specialized plain films, thin-section tomography, CT scanning with intravenous contrast enhancement, Pantopaque cisternography, radionuclide scanning, angiography, and pneumoencephalography. Recently we have used intrathecally enhanced (Amipaque)2 CT cisternography tostudy the cerebellopontine angles and fourth ventricle. An assessment is made of the differential diagnostic value and limitations of radiologic modalities both in tumor detection and in accurate localization. A protocol designed to optimize use of the available radiologic modalities is projected from 30 patients with acoustic neurilemmomas.

Angiography↗
PubMed1978

Peripheral nerve tumour composed of neurilemmoma and haemangioma elements.

Five cases of a peripheral nerve tumour with both neurilemmoma and haemangioma components are reported. Three tumours were intraspinal, one tumour originated in the acoustic nerve, and one was in the brachial plexus. Because of rapid progression these mixed tumours should be considered in the differential diagnosis of intraspinal malignancies.

Adult↗
PubMed1978

Benign neurilemmoma manifesting as a presacral (retrorectal) mass: report of a case.

We recently had the opportunity to treat a patient who had a large presacral mass. The mass, a 13-cm neurilemmoma, was removed through a combined abdominosacral approach. Mostly benign, these presacral masses cause symptoms by compression of adjacent pelvic structures. Digital rectal examination generally provides the diagnosis. Although most such lesions may be removed by a Kraske procedure, large lesions may be best treated using a combined abdominosacral approach.

Adult↗
PubMed1978

Retroperitoneal neurilemmoma.

The clinical and pathologic features of benign and malignant retroperitoneal neurilemmoma are reviewed, and the pertinence of this tumor to the urologist is stressed. Two additional case reports are added to the literature.

Female↗
PubMed1979

Neurilemmoma of the vagus nerve: a case report.

A CASE of an unusually big neurilemmoma arising from the vagus nerve in the neck is presented in this paper. The tumour was so big that it could not be removed until its size had been reduced by the removal of about 15 cc of its fluid contents. The patient had a cardiac arrest on removal of the tumour, denoting probable stimulation of the vagus nerve leading to vagal arrest. His heart started, however, after resuscitative measures and he has not shown any residual cardiac abnormalities, thus indicating that the main vagal trunk was undamaged.

Cranial Nerve Neoplasms↗
PubMed1978

Neurilemmoma presenting as a tumor in the tail of the parotid.

We describe our experiences with 8 patients who had expanding neurilemmomas of the posterolateral parotid area. Treatment is surgical dissection of the encapsulated tumor mass from its nerve of origin, under magnification, with preservation of that nerve and removal of the mass.

Adult↗
PubMed1979

Intracranial hypoglossal neurilemmoma.

In a patient presenting with long tract motor and sensory signs accompanied by unilateral 12th nerve cranial palsy, we report the successful complete resection of an intra-cranial hypoglossal neurilemmoma. Our case marks the 15th reported observation of such a lesion. The value of computerized tomography in the diagnosis and localization of this type of tumor is emphasized.

Cerebral Angiography↗
PubMed1977

[Corticosteroma and gangliocytic neurilemmoma of the left adrenal associated with diffuse nodular hyperplasia and gangliocytoma of the right adrenal].

In a man of 48 who had suffered for a long time from a high arterial blood pressure, the autopsy revealed corticosteroma of the left and diffuse-nodular hyperplasia of the right adrenal glands. Both adrenals also had tumours of the sympathetic nervous system considered to be a gangliocytoneurilemmoma (angliocytic neurilemmoma) on the left and gangliocytoma on the right. The combination of morphological lesions, clinical data and laboratory examinations permit to state a combination of hypercorticism and hypercatecholaminemia.

Adrenal Cortex Neoplasms↗