MR of Benign Peripheral Nerve Sheath Tumors

Cerofolini, E; Landi, Antonio; G, De Santis; Maiorana, Antonio; Canossi, G; Romagnoli, Roberto

doi:10.1097/00004728-199107000-00013

Cited by 172 publications

(71 citation statements)

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“…22 Importantly, however, MR imaging is currently unable to differentiate between schwannoma and neurofibroma. 5 Other imaging modalities may be useful in selected cases. Plain radiography can demonstrate apical pulmonary lesions potentially involving the brachial plexus.…”

Section: Radiological and Neuroimaging Findingsmentioning

confidence: 99%

Primary brachial plexus tumors: imaging, surgical, and pathological findings in 25 patients

Binder¹,

Smith²,

Barbaro³

2004

FOC

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Object The authors report on the treatment of primary brachial plexus tumors in 25 patients at the University of California, San Francisco. They compare their findings with those obtained in similar series. Methods The authors reviewed the electronic and medical records, radiological images, operative reports, and pathological findings in 25 consecutive cases of primary brachial plexus tumors. Cases of metastatic lesions or adjacent neoplasms extending into and involving the brachial plexus were excluded. At presentation patients ranged in age from 19 to 71 years (mean 47 ±15 years), and neurofibromatosis was present in eight patients (32%). Presenting signs and symptoms included palpable mass (60%), numbness/paresthesias (44%), radiating pain (44%), local pain (16%), and weakness (12%). Duration of symptoms ranged from 2 months to 10 years. Neuroimaging revealed lesions ranging widely in size (volume ~1 to >100 ml). Pathological diagnoses included schwannoma (15 [60%]), neurofibroma (five [20%]), malignant peripheral nerve sheath tumor (four [16%]), and desmoid tumor (one [4%]). Conclusions Primary tumors arising in the brachial plexus are rare. Careful workup, surgical technique, and attention to pathological diagnosis optimize management.

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Section: Radiological and Neuroimaging Findingsmentioning

confidence: 99%

Primary brachial plexus tumors: imaging, surgical, and pathological findings in 25 patients

Binder¹,

Smith²,

Barbaro³

2004

FOC

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“…Brachial plexus tumours are diagnosed using clinical examination, myelography and electromyography tests, ultrasonography, computed tomography and magnetic resonance imaging (Cerofolini et al 1991;McCarthy et al 1993;Brehm et al 1995;Hudson et al 1996). In humans, brachial plexus tumours are more effectively diagnosed using magnetic resonance imaging than using computed tomography scans.…”

Section: Discussionmentioning

confidence: 99%

“…Neoplastic changes in peripheral nerves are diagnosed with the aid of clinical examinations, electromyography, myelography and image analysis (Bradley et al 1982;Brehm et al 1995). Various ultrasonography, computed tomography and magnetic resonance techniques for imaging peripheral nerve sheath tumours have been described in human and veterinary medicine (Cerofolini et al 1991;McCarthy et al 1993;Brehm et al 1995;Hudson et al 1996). In human medicine, documented attempts have been made to analyse these tumours with the use of fine-needle aspiration biopsies (Stastny and Frable, 1993;Dodd et al 1997).…”

mentioning

confidence: 99%

Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case report

Zhalniarovich¹,

Adamiak²,

Holak³

et al. 2014

Vet. Med. - Czech

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ABSTRACT:This study describes a case of a six-year-old female crossbreed dog that had a three months history of progressive right thoracic limb lameness. Palpation revealed muscle atrophy of the scapular and humeral area and painfulness in this region. Magnetic resonance imaging was performed in T1-and T2-weighted and STIR (short inversion recovery) sequences in sagittal and transverse planes. The masses around the scapula and humerus were heterogeneously hyper-intense in STIR and measured about 9 cm. The tumour was heterogeneously iso-intense relatively to the surrounding tissues in T-2 weighted Gradient Echo and Spin Echo sequences. After MRI fine needle aspiration of a central part of the tumour was performed. The biopsy revealed multiple round cells with very little cytoplasm and fusiform cells in which the cytoplasm created protrusions. Cells were arranged in rows or formed a homogeneous cell mass. A malignant peripheral nerve sheath tumour was diagnosed cytologically.

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“…28 Despite many advances in technology and technique, MR imaging is still limited in its ability to identify aspects of tumor pathology such as tumor grade or malignancy accurately. 5,18,26,27 Picking up small changes in size or volume of mass lesions is also difficult on MR imaging. In addition, the appearance and intensity of images obtained with MR imaging may change from one patient to another and between multiple runs on the same patient.…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

“…5 Definitive diagnosis of a malignancy is only achievable through the pathological analysis of a tumor biopsy specimen. However, certain features suggest malignancy but do not prove it, including evidence of metastasis, rapid growth, size greater than 5 cm, increased metabolic activity on a PET scan, and a history of having malignant peripheral nerve tumor(s) (Fig.…”

Section: Clinical Applicationmentioning

confidence: 99%

Imaging of peripheral nerve tumors

Singh¹,

Kliot²

2007

FOC

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Recent advancements in the field of imaging, particularly magnetic resonance imaging, have improved the way peripheral nerve tumors are diagnosed, monitored, and treated both medically and surgically. When combined with the all-important clinical evaluation and electrodiagnostic studies, imaging permits a clinician to accomplish the following: identify the size, shape, location, and distribution of mass lesions; infer the risks in resecting a mass lesion by displaying its relationship to nearby nerve fascicles; determine growth rates when serial imaging studies are available; suggest the nature of the pathological entity; and visualize muscle denervation associated with nerve damage. The authors describe some of the commonly used imaging modalities and discuss their use in evaluating and treating peripheral nerve tumors and other mass lesions.

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MR of Benign Peripheral Nerve Sheath Tumors

Cited by 172 publications

References 0 publications

Primary brachial plexus tumors: imaging, surgical, and pathological findings in 25 patients

Primary brachial plexus tumors: imaging, surgical, and pathological findings in 25 patients

Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case report

Imaging of peripheral nerve tumors

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