scholarly journals Malignant peripheral nerve sheath tumours in magnetic resonance imaging: primary and recurrent tumour appearance, post-treatment changes, and metastases

2020 ◽  
Vol 85 (1) ◽  
pp. 196-201 ◽  
Author(s):  
Sam Sedaghat ◽  
Frederick Schmitz ◽  
Martin Grözinger ◽  
Maya Sedaghat
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Peripheral Nerve ◽  
Post Treatment ◽  
Resonance Imaging ◽  
Recurrent Tumour ◽  
Nerve Sheath ◽  
Treatment Changes

Magnetic Resonance Imaging of Peripheral Nerve Sheath Tumors

1990 ◽  
Vol 25 (11) ◽  
pp. 1238-1245 ◽  
Author(s):  
F A MANN ◽  
WILLIAM A. MURPHY ◽  
WILLIAM G. TOTTY ◽  
B J MANASTER
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Peripheral Nerve ◽  
Resonance Imaging ◽  
Nerve Sheath Tumors ◽  
Peripheral Nerve Sheath Tumors ◽  
Nerve Sheath

scholarly journals Schwannoma: A Rare Hoffa's Fat Pad Tumor

2019 ◽  
Vol 05 (02) ◽  
pp. e62-e64
Author(s):  
Jonathan Ruben Caballero Martel ◽  
Sara Estévez Sarmiento
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Peripheral Nerve ◽  
Schwann Cells ◽  
Resonance Imaging ◽  
Fat Pad ◽  
Medial Aspect ◽  
Hoffa’S Fat Pad ◽  
Nerve Sheath ◽  
Knee Magnetic Resonance Imaging

AbstractHoffa's fat pad can be affected by a variety of tumors. Schwannomas are benign and typically solitary neoplasms of the peripheral nerve sheath; they are made up of the neoplastic Schwann cells and are usually located eccentrically. Malignant schwannomas are extremely uncommon. Here we report a case of an intra-articular schwannoma of the knee. A 54-year-old man presented with a painful lump in the medial aspect of the knee. Magnetic resonance imaging revealed a well-circumscribed intra-articular mass, which was later diagnosed as an intra-articular schwannoma based on biopsy findings.

scholarly journals Nerve Tumors: What the MSK Radiologist Should Know

2019 ◽  
Vol 23 (01) ◽  
pp. 076-084 ◽  
Author(s):  
Amanda Isaac ◽  
Bianca Bignotti ◽  
Federica Rossi ◽  
Federico Zaottini ◽  
Carlo Martinoli ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Peripheral Nerve ◽  
Soft Tissue Tumors ◽  
Imaging Feature ◽  
Resonance Imaging ◽  
Neurogenic Tumors ◽  
Nerve Sheath ◽  
Neural Origin

AbstractNerve tumors are rare and heterogeneous soft tissue tumors arising from a peripheral nerve or showing nerve sheath differentiation. In a radiologic setting it is necessary to recognize soft tissue lesions that are of neural origin, their association with a peripheral nerve, and whether they are a true tumor or a so-called pseudotumor such as a neuroma, fibrolipoma, or peripheral nerve sheath ganglion. Ultrasound (US) and magnetic resonance imaging are the best modalities to characterize these lesions. US can be used to guide biopsy in difficult and uncertain cases when the lesion is either indeterminate or possibly malignant. At present, no single imaging feature or reproducible criteria, or a combination, can differentiate reliably between a neurofibroma and a schwannoma or discriminate with certainty between benign and malignant neurogenic tumors. Adequate imaging and consultation with a nerve tumors/sarcoma unit is advised.

MAGNETIC RESONANCE IMAGING AND ULTRASONOGRAPHY IN THE DIAGNOSIS OF A MALIGNANT PERIPHERAL NERVE SHEATH TUMOR IN A DOG

1999 ◽  
Vol 40 (4) ◽  
pp. 367-371 ◽  
Author(s):  
Simon R. Platt ◽  
John Graham ◽  
Cheryl L. Chrisman ◽  
Kathleen Collins ◽  
Sundeep Chandra ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Peripheral Nerve ◽  
Nerve Sheath Tumor ◽  
Resonance Imaging ◽  
Peripheral Nerve Sheath Tumor ◽  
Nerve Sheath

Pictorial Essay: Imaging of Peripheral Nerve Sheath Tumours

2011 ◽  
Vol 62 (3) ◽  
pp. 176-182 ◽  
Author(s):  
Daniel W.Y. Chee ◽  
Wilfred C.G. Peh ◽  
Tony W.H. Shek
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Peripheral Nerve ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Target Sign ◽  
Nerve Sheath ◽  
Pictorial Essay ◽  
Characteristic Imaging ◽  
Distinguishing Features

Peripheral nerve sheath tumours (PNST) may be benign or malignant. Benign PNSTs include neurofibroma and schwannoma. Neurogenic tumours share certain characteristic imaging features, suggested by a fusiform-shaped mass with tapered ends, the “split-fat” sign, atrophy of the muscles supplied by the involved nerve, the “fascicular sign,” and the “target sign”; these imaging features are best demonstrated on magnetic resonance imaging. This pictorial essay emphasizes the characteristic signs and distinguishing features of PNSTs on imaging.

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