Neurons receive synaptic inputs on extensive neurite arbors. How information is organized across arbors and how local processing in neurites contributes to circuit function is mostly unknown. Here, we used two-photon Ca2+ imaging to study visual processing in VGluT3-expressing amacrine cells (VG3-ACs) in the mouse retina. Contrast preferences (ON vs. OFF) varied across VG3-AC arbors depending o...

We present a rare cause of cervical myelopathy produced by an engorged suboccipital epidural venous plexus due to chronic cerebrospinal fluid (CSF) overdrainage. A 17-year-old boy with obstructive hydrocephalus due to a retrocerebellar cyst and secondary implantation of a ventricloperitoneal shunt (VP-shunt) presented with progressive spastic tetraparesis. MRI imaging revealed myelopathy due to...

OBJECTIVE To determine how the spinal accessory nerve and the trapezius branches of the cervical plexus contribute to the innervation of each of the 3 parts of the trapezius muscle. Special emphasis was placed on the nerve supply of the clinically most important descending part of the muscle. DESIGN Anatomical analysis of the distribution of the cervical plexus and spinal accessory nerve bran...

Radiation-induced brachial plexopathy (RIBP) is one of the late complications in nasopharyngeal carcinoma (NPC) patients who received radiotherapy. We conducted a retrospective study to investigate its clinical characteristics and risk factors.Thirty-onepatients with RIBP after radiotherapy for NPC were enrolled. Clinical manifestations of RIBP, electrophysiologic data, magnetic resonance imagi...

OBJECTIVE  High-energy impact to the head, neck, and shoulder can result in cervical spine as well as brachial plexus injuries. Because cervical spine injuries are more common, this tends to be the initial focus for management. We present a case in which the initial magnetic resonance imaging (MRI) was somewhat misleading and a detailed neurological exam lead to the correct diagnosis. CLINICA...

Author contributions: Guarantor of integrity of entire study, E.R.M.; study concepts and design, E.R.M.; definition of intellectual content, E.R.M.; literature research, E.R.M.; clinical studies, E.R.M.; data acquisition, E.R.M., R.I.; data analysis, E.R.M., R.I.; manuscript preparation, E.R.M., R.I.; manuscript editing, E.R.M., R.I., P.J.M.F.; manuscript review, E.R.M., R.I., P.J.M.F. Cervical...

PURPOSE To determine the diagnostic accuracy of three-dimensional MR myelography in the evaluation of traumatic injuries of the brachial plexus. METHODS Twenty patients with clinical and electromyographic evidence of traumatic brachial plexopathy were examined with three-dimensional MR myelography, conventional cervical myelography, and CT myelography 1 to 9 months after trauma. Three-dimensi...

BACKGROUND The purpose of this study was to evaluate tongue function in patients with tongue cancer after reconstruction with innervated supraclavicular fasciocutaneous island flaps (iSFIFs) with the cervical plexus (iSFIFs-SPN) or reinnervated SFIFs with neurorrhaphy of the cervical plexus and lingual nerve (rSFIFs-SPN-LN). METHODS Forty-two tongue defects were reconstructed using iSFIFs-SPN...

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