Retinal pericyte degeneration, a usual finding in diabetic retinopathy, has been shown to be a change probably peculiar to the retina rather than part of a more widespread angiopathy. Thus in a patient with diabetic retinopathy the characteristic eosinophilic degeneration of the pericyte nuclei ceased at the optic disc and could not be found in vessels of the optic nerves and brain.

Extranodal nerve system involvement is seen in approximately 5% of the patients with non-Hodgkin's lymphomas. It causes as primary or secondary infiltration of brain, leptomeninges, or peripheral nerves and the signs of spinal cord compression. Here we present a 67-year-old woman with advanced stage diffuse large B-cell lymphoma who developed foot-drop due to lumbosacral plexus involvement.

Background: Isolated metastasis to the optic nerve (ON) and its sheath from breast cancer (BC) without involvement of other ocular structures is extremely rare. However, it a pivotal diagnosis rule out as both sight- life-threatening condition. We report case isolated ON BC presenting with central retinal vein occlusion (CRVO).
 Case presentation: A 47-year-old woman known metastatic prese...

the basis of acupuncture is still being studied from many different aspects. some preliminary views include: 1) the analgesic function of acupuncture derives from the clashing of the biochemical lines of acupuncture and those of the pain stimulus in the transmitting processes of the central nervous system, the former overriding the latter. 2) acupuncture strengthens the cerebral cortex's i...

purpose: to report three cases of classic cranial syndromes with involvement of the third and sixth nerves with comparison of their clinical and radiological findings and results of treatment. case report: three patients were referred to labbafinejad strabismus clinic because of diplopia and eye deviation after an attack of eclampsia (one case) and head trauma (two cases). they had extraocular ...

The technology of Neural Stimulation in recent years has become the focus of the research and treatment, although it has been around for many years. The potential use of stimulating the brain and nerves ranges from the spinal cord stimulation to the implantations of cochlear and bionic eyes with a large discrepancy between the clinical readiness for these various uses. Electrical high-frequency...

A 13 year old boy, developed bilateral facial weakness, dysphonia and dysphagia acutely after a febrile illness. Neurological examination and MRI of the brain were normal. The CSF protein level increased. Blink reflex monitoring during clinical recovery was consistent with demyelination of the lower cranial nerves innervating the branchial arch musculature, a rare variant of Guillain-Barré synd...

Objective: Alteration in the basement membrane proteins maybe associated with diabetic neuropathy. Fibronectin is one of the most important components of peripheral nerves basement membrane. In this study we investigated the effects of insulin administration on prevention of alteration in fibronectin contents of sciatic nerve in diabetic rats. Materials and Methods: Twenty-four wistar rats wer...