Cases reported "Neurilemmoma"

Filter by keywords:



Filtering documents. Please wait...

11/42. Case studies for illustration and discussion: peripheral nerve tumors.

    This article gives a presentation of a variety of surgical cases of peripheral nerve tumors for illustration and discussion. The first three cases include a schwannoma, a neurofibroma, and a desmoid tumor of the brachial plexus region. Case 4 is that of a patient with a common peroneal ganglion cyst, and case 5 is that of a patient with an angiolipoma of the forearm. Cases 6 through 8 illustrate a plexiform neurofibroma, a malignant peripheral nerve sheath tumor, and a metastatic carcinoma to the brachial plexus region. In case 9, a patient with schwannomatosis was treated for multiple spinal schwannomas.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

12/42. scoliosis associated with ganglioneuroblastoma: a case report with 17-year follow-up.

    We describe the case of a 12-year-old boy with scoliosis due to a malignant ganglioneuroblastoma. He had a successful outcome, as was noted by 17-year follow-up of tumor resection and spinal fusion.
- - - - - - - - - -
ranking = 5
keywords = ganglion
(Clic here for more details about this article)

13/42. Lobulated schwannoma of the median nerve: pitfalls in diagnostic imaging.

    The authors report an unusual case of volar wrist swelling with the appearance of a simple ganglion on magnetic resonance imaging (MRI); however, operative and histologic examination identified the swelling as an ancient schwannoma. Ancient schwannomas mostly present as a solitary tumor. A lobulated tumor in this location has not been described previously. The pathologic findings of these uncommon tumors and the difficulties encountered in accurate preoperative diagnosis are discussed.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

14/42. Pleomorphic hyalinizing angiectatic tumor of soft parts: ultrastructural analysis of a case with original features.

    Pleomorphic hyalinizing angiectatic tumor, a rare neoplasm of uncertain lineage resembling malignant fibrous histiocytoma and schwannoma, was first described in 1996 by M. E. F. Smith et al. (Am Surg Pathol. 20:21-29). To date, less than 100 cases have been reported in the international literature. It occurs in subcutaneous and intramuscular soft tissues of extremities or trunk in adults without sex predilection. All lesions are composed of sheets and fascicles of spindled and pleomorphic cells associated with clusters of thick-walled ectatic vessels surrounded by a perivascular hyaline material and inflammatory cells such as mast cells. About one-half of these neoplasms express CD34. No patient has developed metastases but occasional local recurrences are possible. This tumor of uncertain lineage is suggested to be an aggressive locally growing low-grade sarcoma. Only 3 cases were previously studied by electron microscopy and appeared to consist of primitive fibroblastic cells. The authors report histological and ultrastructural characteristics of a new case of PHAT excised from the right buttock of a 66-year-old man with the presence of ganglion-like cells, a feature that has not been previously reported, and unusual central ischemic necrosis. The features of this case are suggestive of a fibroblastic origin.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

15/42. ultrasonography for the diagnosis of soft tissue conditions in the hand.

    Six months' experience of ultrasonographic diagnosis of the hand has proved it to be a valuable method for diagnosis of ganglions, tendon ruptures, synovitis, tumours, and the presence of foreign bodies. We are exploring ways of increasing its scope, in the light of the technical innovations that are being made.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

16/42. Pigmented ganglioneuroblastoma: relation of melanin and lipofuscin to schwannomas and other tumors of neural crest origin.

    An unusual case of ganglioneuroblastoma containing melanin is presented. Electron microscopy revealed various stages of development of melanosomes in neoplastic cells of Schwann, the first direct demonstration in human material that these cells are malanogenic. The frequent occurrence of neuromelanin in autonomic ganglia and in ganglioneuromas is interpreted as the presence of altered lipofuscin. review of ultrastructural and other observations indicates a relation between various pigmented tumors, the cell of Schwann, and other cells arising from the neural crest.
- - - - - - - - - -
ranking = 6
keywords = ganglion
(Clic here for more details about this article)

17/42. Malignant peripheral nerve sheath tumor arising in a "de novo" ganglioneuroma. A case report.

    A case of a "de novo" ganglioneuroma showing an internal area of malignant nerve sheath tumor is described. The tumor arose in an 18-year-old girl without a history of von Recklinghausen's disease. Immunohistochemically, the ganglioneuromatous component was positive with anti-synaptophysin, anti-S100 protein and anti-vimentin antisera, whereas the malignant part was immunoreactive only with anti-S100 protein and anti-vimentin antisera. The patient is free of disease 4 years after surgery. The clinicopathologic features of this rare case are discussed.
- - - - - - - - - -
ranking = 6
keywords = ganglion
(Clic here for more details about this article)

18/42. Nerve tumors of the hand and forearm.

    Peripheral nerve tumors comprise less than 5% of all tumors of the hand. The most common solitary nerve tumor is the neurilemmoma, which arises from the neural sheath, is well encapsulated, minimally symptomatic, and may be surgically enucleated without producing a neurological deficit. Neurofibromas may be solitary, multiple, or associated with von Recklinghausen's disease. They are usually centrally placed with nerve fibers traversing the tumor mass making it more difficult to remove the tumor without producing permanent neurological damage. Malignant tumors include neurofibrosarcomas which often are very aggressive, requiring wide excision or amputation, and the rare neuroepitheliomas. Reported nerve tumors, intraneural in location but nonneural in origin, include fibrofatty infiltration of the median and digital nerves, intraneural lipoma, hemangioma, and ganglion cysts. These lesions may be treated by decompression or excision, depending on the nature of the tumor. Four unusual cases are described.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

19/42. Digital schwannoma in a skeletally immature child.

    soft tissue neoplasms of the hand are rare in general and even more uncommon in children. The most commonly considered diagnoses include ganglion, inclusion cyst, lipoma, subcutaneous foreign body granuloma, and tendon sheath xanthoma. Aside from pressure sensitivity, masses on the palmar aspect of the hand are often asymptomatic. The case reported here identifies a primary neural neoplasm (neurilemmoma) that involves a small peripheral nerve in the hand of a twelve-year-old child. The patient had no neurologic symptoms and illustrates the need to include neurilemmomas in the differential diagnosis of hand masses in children.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)

20/42. Intratemporal facial nerve neurinoma--case report.

    A 59-year-old female had episodes of vertigo for 13 years, right tinnitus for 6 years, and right hearing difficulty for 2 years. She had no facial nerve dysfunction or other neurological deficits. Postcontrast computed tomography (CT) did not show abnormalities, but a wide, high-window CT scan revealed erosion of the petrous pyramid on the right side. magnetic resonance imaging clearly delineated the entirety of a small tumor transecting the petrous bone. At operation a neurinoma was found to originate from the facial nerve proximal to the geniculate ganglion; it was totally removed. This case is unique in that she had a long history of signs and symptoms of acoustic nerve disturbance, but no facial nerve dysfunction whatsoever.
- - - - - - - - - -
ranking = 1
keywords = ganglion
(Clic here for more details about this article)
<- Previous || Next ->


Leave a message about 'Neurilemmoma'


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