Benign neural sheath tumours of major nerves: Characteristics in 119 surgical cases

1997 ◽  
Vol 139 (12) ◽  
pp. 1108-1116 ◽  
Author(s):  
M. Artico ◽  
L. Cervoni ◽  
V. Wierzbicki ◽  
V. D'Andrea ◽  
F. Nucci
Keyword(s):  
Neural Sheath

scholarly journals First-ever intraosseous ancient schwannoma of the proximal ulna successfully treated using the cement technique

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052098773
Author(s):  
Kai Xuan Lim ◽  
Karl Wu
Keyword(s):  
Rare Case ◽  
Pathological Fracture ◽  
Soft Tissue Neoplasm ◽  
Proximal Ulna ◽  
Intraosseous Schwannoma ◽  
First Case ◽  
Primary Bone ◽  
Primary Bone Tumours ◽  
Current Report ◽  
Neural Sheath

Schwannoma or neurilemmoma is a common soft tissue neoplasm arising from the neural sheath of Schwann cells. However, intraosseous schwannoma is rare, accounting for less than 0.2% of primary bone tumours. Several variants of schwannoma have been reported; among them, intraosseous schwannoma with ancient change is extremely rare. This current report presents an extremely rare case of ancient intraosseous neurilemmoma. The patient presented with right elbow pain and disability. A radiolucent, well-defined, lobulated lesion with a thin sclerotic rim in the proximal ulnar metaphysis that had caused a pathological fracture was noted. The mass was surgically excised using marginal resection and bone curettage was undertaken. The bone deficit was grafted with hydroxyapatite and β-tricalcium phosphate and augmented with bone cement. There were no signs of any recurrence after 3 years. This is the first case of an ancient intraosseous schwannoma of the proximal ulna. Although rare, intraosseous schwannoma should be considered in the differential diagnosis of radiographically benign-appearing osseous tumours in the bone. The cement technique is recommended for the treatment of intraosseous schwannoma.

Neurilemoma of the Median Nerve - Surgical Strategies Based on a Case Report

2014 ◽  
Vol 86 (9) ◽  
Author(s):  
Łukasz Ulatowski ◽  
Anna Kaniewska
Keyword(s):  
Case Report ◽  
Median Nerve ◽  
Nerve Trunk ◽  
Reconstruction Technique ◽  
Nerve Reconstruction ◽  
Surgical Strategies ◽  
Second Procedure ◽  
Relationship Of ◽  
The Relationship ◽  
Neural Sheath

AbstractThe study presented a case of a patient with a neurilemoma of the median nerve. It presented as a six centemeters tumor, at the level of the proximal one third of the arm with only mild paraesthesias within frst to third ray of the hand. MRI showed the relationship of the tumor and the median nerve, and allowed for the preliminary diagnose of a benign peripheral neural sheath tumor (neurilemoma or neurofibroma). During the first operation the tumor has not been excised, because nerve reconstruction technique was not available. During the second procedure excision of the tumor has been performed without resection of the median nerve trunk with no postoperative deficiencies. The paper provides a detailed description of a surgical procedure. The presented case, like current publications shows that peripheral neural sheath tumor may be usually excised without resection of the nerve trunk, although the possibility of nerve fascicles injury or the need to excise them in the case of neurofibroma clearly suggest that these type of operations should be carried out in centers with microsurgical facilities.

Intraspinal extradural teratoma mimicking neural sheath tumor in infant

2004 ◽  
Vol 20 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Seung-Jin Choi ◽  
Hyun-Joo Choi ◽  
Jae-Taek Hong ◽  
Hee-Kyung Woo ◽  
Jae-Hoon Sung ◽  
...  
Keyword(s):  
Neural Sheath

scholarly journals Ancient schwannoma of the parapharynx causing dysphagia: a rare entity

2012 ◽  
Vol 94 (7) ◽  
pp. e10-e13 ◽  
Author(s):  
SI Sayed ◽  
P Rane ◽  
A Deshmukh ◽  
D Chaukar ◽  
S Menon ◽  
...  
Keyword(s):  
Head And Neck ◽  
Schwann Cells ◽  
Parapharyngeal Space ◽  
Rare Entity ◽  
Common Site ◽  
First Report ◽  
Transcervical Approach ◽  
Histological Types ◽  
Prominent Symptom ◽  
Neural Sheath

A schwannoma is a benign, encapsulated tumour that is derived from neural sheath (Schwann) cells. Approximately 25–40% of schwannomas occur in the head and neck. The most common site is the parapharyngeal space of the neck; oropharyngeal occurrence is extremely rare. Among the various histological types of schwannomas reported to date, the ancient (degenerative) variant is the most rare. To our knowledge, this is the first report of an ancient schwannoma in the parapharynx with an extensive oropharyngeal component causing dysphagia. Dysphagia was the prominent symptom because of the location and volume of the lesion. The tumour was excised via a transcervical approach.

A series of 397 peripheral neural sheath tumors: 30-year experience at Louisiana State University Health Sciences Center

2005 ◽  
Vol 102 (2) ◽  
pp. 246-255 ◽  
Author(s):  
Daniel H. Kim ◽  
Judith A. Murovic ◽  
Robert L. Tiel ◽  
Gregory Moes ◽  
David G. Kline
Keyword(s):  
Brachial Plexus ◽  
Surgical Techniques ◽  
Neurofibromatosis Type ◽  
Health Sciences ◽  
High Morbidity ◽  
State University ◽  
Content Type ◽  
Louisiana State University ◽  
Neural Sheath ◽  
Fine Print

Object. This is a retrospective review of 397 benign and malignant peripheral neural sheath tumors (PNSTs) that were surgically treated between 1969 and 1999 at the Louisiana State University Health Sciences Center (LSUHSC). The surgical techniques and adjunctive treatments are presented, the tumors are classified with respect to type and prevalence at each neuroanatomical location, and the management of malignant PNSTs is reviewed. Methods. There were 361 benign PNSTs (91%). One hundred forty-one benign lesions were brachial plexus tumors: 54 schwannomas (38%) and 87 neurofibromas (62%), of which 55 (63%) were solitary neurofibromas and 32 (37%) were neurofibromatosis Type 1 (NF1)—associated neurofibromas. Among the brachial plexus lesions supraclavicular tumors predominated with 37 (69%) of 54 schwannomas; 34 (62%) of 55 solitary neurofibromas; and 19 (59%) of 32 NF1-associated neurofibromas. One hundred ten upper-extremity benign PNSTs consisted of 32 schwannomas (29%) and 78 neurofibromas (71%), of which 45 (58%) were sporadic neurofibromas and 33 (42%) were NF1-associated neurofibromas. Twenty-five benign PNSTs were removed from the pelvic plexus. Lower-extremity PNSTs included 32 schwannomas (38%) and 53 neurofibromas (62%), of which 31 were solitary neurofibromas and 22 were NF1-associated neurofibromas. There were 36 malignant PNSTs: 28 neurogenic sarcomas and eight other sarcomas (fibro-, spindle cell, synovial, and perineurial sarcomas). Conclusions. The majority of tumors were benign PNSTs from the brachial plexus region. Most of the benign PNSTs in all locations were neurofibromas, with sporadic neurofibromas predominating. Similar numbers of schwannomas were found in the upper and lower extremities, whereas neurofibromas were more prevalent in the upper extremities. Despite aggressive limb-ablation or limb-sparing surgery plus adjunctive therapy, malignant PNSTs continue to be associated with high morbidity and mortality rates.

Glandular structures in neural sheath neoplasms

1982 ◽  
Vol 53 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Stavros J. Papanicolaou ◽  
L.R. Eversole
Keyword(s):  
Glandular Structures ◽  
Neural Sheath

Schwannoma of the palatine tonsil

2005 ◽  
Vol 119 (7) ◽  
pp. 570-572 ◽  
Author(s):  
H T Anil ◽  
B V Chandre Gowda ◽  
S Lakshmi ◽  
S R Niveditha
Keyword(s):  
Head And Neck ◽  
Schwann Cells ◽  
Neck Region ◽  
Benign Tumour ◽  
Palatine Tonsil ◽  
Autonomic Nerves ◽  
Head And Neck Region ◽  
The Third ◽  
Acoustic Nerve ◽  
Neural Sheath

Schwannoma is a solitary, benign tumour arising from the neural sheath Schwann cells of the peripheral, cranial or autonomic nerves. In the head and neck region, it occurs most commonly in association with the acoustic nerve within the skull and is rarely found in oral structures. When it is found in oral structures, the tongue is reported to be the favoured site. Schwannoma of the tonsil is extremely rare, with only two cases reported in the literature. We report what is, to our knowledge, the third case of schwannoma of the tonsil, diagnosed by histopathology.

scholarly journals Description of a neural sheath tumor of the trigeminal nerve: immunohistochemical and electron microscopy study

2006 ◽  
Vol 124 (6) ◽  
pp. 333-335 ◽  
Author(s):  
Bijan Khademi ◽  
Seied Mohammad Owji ◽  
Khadije Jamshidi Khosh ◽  
Mohammad Mohammadianpanah ◽  
Behrooz Gandomi
Keyword(s):  
Electron Microscopy ◽  
Optical Microscopy ◽  
Trigeminal Nerve ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Facial Region ◽  
Neural Origin ◽  
Immunohistochemical Techniques ◽  
Expansive Process ◽  
Neural Sheath

CONTEXT: Malignant neural sheath tumors of the trigeminal nerve affecting the nasal cavity and the paranasal sinuses are extremely rare. With conventional optical microscopy, their identification is difficult, and it is necessary to confirm them by means of electron microscopy and immunohistochemical techniques. CASE REPORT: The patient was a 41-year-old woman with a ten-month progressive history of pain followed by painful edema in the left facial region, and with symptoms of bleeding, secretion and nasal obstruction. Studies with imaging methods suggested the presence of an expansive process in the left nasal and paranasal cavities. In the biopsy, the histopathological findings from optical microscopy were suggestive of a tumor of neural origin in the trigeminal nerve. Immunohistochemical and electron microscopy studies confirmed that it was a malignant tumor of the neural sheath of the trigeminal nerve. We describe the clinical, radiological, and histological features of this tumor and review the literature.

Sign in / Sign up

Export Citation Format

Share Document