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Angiosarcoma arising in a schwannoma of the peripheral nervous system: illustrative case

Nikita Lakomkin, Jorge Torres-Mora, Eric J. Dozois, and Robert J. Spinner

comparison with other types of nerve tumors with angiosarcoma . Cancer . 2000 ; 89 ( 7 ): 1577 – 1585 . 10.1002/1097-0142(20001001)89:7<1577::AID-CNCR23>3.0.CO;2-2 12 Sakai Y , Hirose T , Tomono A , Angiosarcoma arising in schwannoma of cerebellopontine angle and later associating with meningioma in a patient with neurofibromatosis type 2 . Brain Tumor Pathol . 2014 ; 31 ( 4 ): 293 – 298 . 10.1007/s10014-014-0180-6 13 Shundo Y , Ota S , Inaba H , [Angiosarcoma arised from a solitary schwannoma of the chest wall] . Kyobu Geka

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Malignant intracerebral nerve sheath tumor in a patient with Noonan syndrome: illustrative case

Callum M. Allison, Syed Shumon, Abhijit Joshi, Annelies Quaegebeur, Georges Sinclair, and Surash Surash

negative synaptophysin and neurofilament protein, which reliably distinguish MINSTs from desmoplastic ganglioglioma. 22 Other differential diagnoses include other tumors such as rhabdomyosarcoma, gastrointestinal stromal tumor, and meningioma. 20 In our case, S100 positivity coexisting with patchy GFAP expression proved challenging and certainly delayed diagnosis. Additionally, as mentioned above, this tumor initially appeared similar to a glioblastoma on imaging. Histologically, this was thought not to be the immediate case because of certain morphological clues such

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Etiology of spastic foot drop among 16 patients undergoing electrodiagnostic studies: patient series

Lisa B. E. Shields, Vasudeva G. Iyer, Yi Ping Zhang, and Christopher B. Shields

motor cortex, corona radiata, internal capsule, basal ganglia, brainstem, and spinal cord. 2–4 Several conditions have been reported to cause SFD, including brain tumors (meningioma, glioma), metastases, cerebrovascular accidents (CVAs), cervical disc herniations, demyelinating plaques due to multiple sclerosis (MS), traumatic brain injury, cerebral abscess/contusion, spinal cord compression, and neurocysticercosis. 2–10 Cerebral cases may arise in the parasagittal area because of either direct damage or local mass effect because the medial homunculus of the primary

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“Winged” Eagle’s syndrome: neurophysiological findings in a rare cause of spinal accessory nerve palsy. Illustrative cases

Eric C Mitchell, Kitty Y Wu, Fawaz Siddiqi, John Yoo, Pavlo Ohorodnyk, Douglas Ross, and Thomas A Miller

the trapezius and sternocleidomastoid muscles, indicating a proximal compression point. Advanced imaging, such as CT with three-dimensional reconstruction and MRI, was helpful in excluding other causes of extrinsic SAN compression, such as a glomus tumor or meningioma. In these cases of SAN compression from an angulated or calcified styloid process, surgical decompression and styloidectomy led to good results with the recovery of trapezius function despite the prolonged degree of muscle atrophy. It is unclear if the patients will regain significant middle and