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Dysembryoplastic neuroepithelial tumour (DNT, DNET) is a type of brain tumor.Most commonly found in the temporal lobe, DNTs have been classified as benign tumours. [1] These are glioneuronal tumours comprising both glial and neuron cells and often have ties to focal cortical dysplasia.
Lesions to V1, for example, can cause blindsight in different areas of the brain depending on the size of the lesion and location relative to the calcarine fissure. [12] Lesions to V4 can cause color-blindness, [13] and bilateral lesions to MT/V5 can cause the loss of the ability to perceive motion.
Klüver–Bucy syndrome is a syndrome resulting from lesions of the medial temporal lobe, particularly Brodmann area 38, [1] causing compulsive eating, hypersexuality, a compulsive need to insert inappropriate objects in the mouth (hyperorality), visual agnosia, and docility.
[1] [2] These additional techniques are useful in determining what type of lesion the patient has, and allows physicians to determine more effective ways in treating the patient. (A) CT scan of a patient with middle cerebral artery stroke illustrating hypodensity areas within the temporal and frontal lobes.
Normally MS lesions are small ovoid lesions, less than 2 cm. long, oriented perpendicular to the long axis of the brain's ventricles [18] Often they are disposed surrounding a vein [19] Demyelinization by MS. The Klüver-Barrera colored tissue show a clear decoloration in the area of the lesion (Original scale 1:100)
Symptomatic features of paraneoplastic syndrome cultivate in four ways: endocrine, neurological, mucocutaneous, and hematological.The most common presentation is a fever (release of endogenous pyrogens often related to lymphokines or tissue pyrogens), but the overall picture will often include several clinical cases observed which may specifically simulate more common benign conditions.
An analysis of 2024 Google search data revealed the top health questions asked by Americans. A registered nurse provides answers to the seven most common inquiries.
[1] [2] Even in people with a known pituitary tumor, only 0.6–10% experience apoplexy; the risk is higher in larger tumors. [2] Based on extrapolations from existing data, one would expect 18 cases of pituitary apoplexy per one million people every year; the actual figure is probably lower.