peripheral nerve tumor
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Author(s):  
Taekeun Yoon ◽  
Ki Yong Hong

Schwannoma, a benign peripheral nerve tumor, rarely undergoes chronic degenerative changes and progresses to ancient schwannoma. Herein, we report the first case of ulnar nerve-derived multiple ancient schwannomas, which uncommonly developed in the extremities and major nerves. A 76-year-old female patient presented with tingling sensations in her left ring and small fingers. She had a gradually enlarging mass that developed 40 years ago in the proximal upper arm and a new mass growing on the wrist for the past few years. Based on physical examination, ultrasonography, and magnetic resonance imaging, ancient schwannomas of the ulnar nerve were suspected. The older and larger mass of the upper arm was more entangled with nerve fascicles, having necrotic changes. Through meticulous dissection of the nerve fascicles, both masses were successfully enucleated, and pathological examination confirmed ancient schwannoma. As ancient schwannomas grow, they become more entangled with the nerves; thus, early surgical removal is recommended.


2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Keith George ◽  
Shane Burke ◽  
Knarik Arkun ◽  
Ron Riesenburger

A patient with a prior history of intradural schwannoma and disc herniation presented with radicular pain after being hit in the thigh by a dog’s tail. She was worked up and found to have a tumor of her right sciatic nerve. The tumor was resected and histology was consistent with schwannoma. The dog’s tail acted as a Tinel’s sign maneuver and led to timely identification of her peripheral nerve tumor. Peripheral nerve schwannomas can present in unusual forms, and Tinel’s maneuver may be a useful tool in diagnosis.


2014 ◽  
Vol 16 (suppl 5) ◽  
pp. v127-v127
Author(s):  
M. Achutha ◽  
B. Slagle-Webb ◽  
E. Rizk ◽  
R. Payne ◽  
K. Harbaugh ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Somya Dulani ◽  
Sachin Diagavane ◽  
Seema Lele ◽  
Harshal Gaurkhede

In this paper, we report a case of bilobed schwannoma, presented in the roof of orbit arising from supraorbital nerve. A 62-year male presented with a nontender mass in superior part of orbit and eccentric proptosis. Visual acuity and rest of ocular examination were normal. CT scan and MRI orbit revealed an extraconal homogenous bilobed mass, of size 3.5 to 2.5 cms in roof of orbit. Fine needle aspiration cytology was done, which was suggestive of schwannoma a peripheral nerve tumor. Successful surgical excision of intact bilobed schwannoma was done with careful separation and preservation of supraorbital nerve from which it was originated. Postoperative period was uneventful though rare, less than 1%, schwannoma can present as painless mass in the orbit and proptosis. Treatment of choice is surgical excision of intact tumor to prevent recurrence and preservation of peripheral nerve from which it arises.


2012 ◽  
pp. 112-112 ◽  
Author(s):  
Avneesh Chhabra ◽  
Gustav Andreisek ◽  
Gaurav Thawait

Neurosurgery ◽  
2011 ◽  
Vol 68 (3) ◽  
pp. 773-780 ◽  
Author(s):  
Hasan A Zaidi ◽  
Courtney Pendleton ◽  
Gustavo Pradilla ◽  
Aaron A Cohen-Gadol ◽  
Allan J Belzberg ◽  
...  

2008 ◽  
Vol 70 (5) ◽  
pp. 514-517 ◽  
Author(s):  
Mariano Socolovsky ◽  
Natalia Spaho ◽  
Daniel González Cueto ◽  
Francesco Doglietto ◽  
Eduardo Fernandez

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