scholarly journals Intraneural Perineurioma

2020 ◽  
Author(s):  
Keyword(s):  
Intraneural Perineurioma

Intraneural perineurioma of the digital nerve: a case report

2015 ◽  
Vol 41 (8) ◽  
pp. 885-886
Author(s):  
N. J. Visser ◽  
H. Bril ◽  
J. van Loon
Keyword(s):  
Case Report ◽  
Digital Nerve ◽  
Intraneural Perineurioma

INTRANEURAL PERINEURIOMA IN THE LOWER LIP MIMICKING MUCOCELE

2020 ◽  
Vol 129 (1) ◽  
pp. e49-e50
Author(s):  
PAMELA OLIVEIRA SANTOS ◽  
CRISTIANE CANTIGA DA SILVA ◽  
TIAGO NOVAES PINHEIRO
Keyword(s):  
Lower Lip ◽  
Intraneural Perineurioma

scholarly journals MRI of intraneural perineurioma of the brachial plexus

2012 ◽  
Vol 7 (1) ◽  
pp. 649 ◽  
Author(s):  
Efrat Saraf Lavi ◽  
Allan D Levi ◽  
Erica K. Schallert ◽  
Andrew D. Brown ◽  
Michael D. Norenberg
Keyword(s):  
Brachial Plexus ◽  
Intraneural Perineurioma

Intraneural perineurioma—not restricted to major nerves

2003 ◽  
Vol 96 (2) ◽  
pp. 192-196 ◽  
Author(s):  
Douglas D Damm ◽  
Dean K White ◽  
Jerry D Merrell
Keyword(s):  
Intraneural Perineurioma

FM1-4 Intraneural perineuriomas: radiologically classic, clinically varied

2019 ◽  
Vol 90 (3) ◽  
pp. e21.3-e20
Author(s):  
Mahima Kapoor ◽  
Kirsten Pierce ◽  
Annelies Quaegebeur ◽  
Michael P Lunn ◽  
Aisling S Carr ◽  
...  
Keyword(s):  
Clinical Evidence ◽  
Benign Neoplasm ◽  
Intracranial Meningioma ◽  
Retrospective Case ◽  
Nerve Roots ◽  
Clinical Issue ◽  
Mri Features ◽  
Intraneural Perineurioma ◽  
Skip Lesions ◽  
Case Note Review

ObjectivesIntraneural perineurioma is a rare, benign neoplasm of peripheral nerve. The histopathological features are well defined.DesignWe describe 5 cases of histologically confirmed perineuriomas and 14 cases diagnosed on clinical and radiological characteristics to highlight the features of this rare entity.MethodsWe identified cases from the imaging and histopathology database and conducted a retrospective case note review.ResultsThe subjects include 7 men and 12 women, with mean (standard deviation) age of 17.64 (13) years at onset of symptoms. 14 of the 15 lower limb cases were located in the sciatic nerve or its divisions. 1 each was identified in ulnar, median and radial nerves and 1 case was in a facial nerve. The MRI features were homogenous between the groups. The nerves biopsied included 1 tibial, 1 ulnar, 1 radial, 1 facial and 1 sciatic all showing classic pathology findings. 2 patients, interestingly, had coincidental intracranial meningioma, given the recent discovery of a potential shared pathogenesis (mutations in TRAF7) with intracranial meningiomas. 2 patients had ‘skip lesions’ within the same nerve and 3 patients had foraminal and extraforaminal involvement of lumbosacral nerve roots.ConclusionsOur unit now favours the clinicoradiological features for diagnosing perineuriomas rather than performing a biopsy on all patients. Also, the potential shared pathogenesis with meningiomas raises the clinical issue of screening in patients with perineuriomas but more clinical evidence is required.

FISH Analysis of Chromosome 22 from Peripheral Nerve Biopsies of Intraneural Perineurioma (P05.146)

Neurology ◽  
2012 ◽  
Vol 78 (Meeting Abstracts 1) ◽  
pp. P05.146-P05.146
Author(s):  
M. Mauermann ◽  
C. Klein ◽  
P. Dyck ◽  
J. Engelstad ◽  
H. Flynn Gilmer ◽  
...  
Keyword(s):  
Peripheral Nerve ◽  
Chromosome 22 ◽  
Fish Analysis ◽  
Intraneural Perineurioma

Carpal Tunnel Syndrome Due to an Intraneural Perineurioma in a 2-Year-Old Child

2001 ◽  
Vol 26 (2) ◽  
pp. 168-170 ◽  
Author(s):  
D. T. ALFONSO ◽  
A. SOTREL ◽  
J. A. I. Grossman
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Nerve Reconstruction ◽  
Intraneural Perineurioma ◽  
Tunnel Syndrome

We report a 2-year-old girl with carpal tunnel syndrome due to a large intraneural perineurioma that required resection and nerve reconstruction.

Intraneural perineurioma of the third cranial nerve: occurrence and identification

2006 ◽  
Vol 104 (5) ◽  
pp. 824-827 ◽  
Author(s):  
Rami Almefty ◽  
Bruce L. Webber ◽  
Kenan I. Arnautović
Keyword(s):  
Schwann Cells ◽  
Cranial Nerve ◽  
S100 Protein ◽  
Cranial Nerves ◽  
Onion Bulb ◽  
Subtotal Resection ◽  
Bulb Formation ◽  
Intraneural Perineurioma ◽  
Onion Bulb Formation ◽  
Third Cranial Nerve Palsy

✓Intraneural perineurioma is a true but rare neoplasm that originates from perineurial cells and mainly affects peripheral nerves. It must be distinguished from other hypertrophic neuropathies that are either inflammatory or demonstrate an onion-bulb formation that originates from Schwann cells. Complying with this strict definition, only three additional cases of cranium-related perineurioma have been identified: two lesions arose extracranially and involved cranial nerves, and one occurred intracranially but did not involve a nerve. The authors describe a 27-year-old woman who presented with left third cranial nerve palsy and was found to harbor a mass lesion in the superior orbital fissure and cavernous sinus. After subtotal resection had been performed, pathological studies confirmed the presence of perineurial tumor cells in a pseudo–onion bulb formation. The cells stained positively for epithelial membrane antigen but not for S100 protein, clearly distinguishing the disease from one that originates in Schwann cells.

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