עמוד 1 מ 21 תוצאות
Wjile low doses of corticotropin-releasing hormone (CRH) induce behavioral activation as part of the stress response, higher doses cause pathological excitability and seizures. Single CRH-induced convulsions resemble those following amygdala "kindling" in which intermittent exposure to a
Granular cell astrocytoma (GCA) is an aggressive variant of astrocytoma characterised by predominantly round-to-polygonal cells with abundant eosinophilic granular cytoplasm. This tumor usually lack the morphological signatures of conventional astrocytoma and are devoid of typical features which
An 11-year-old neutered male Labrador Retriever presented to Tufts University School of Veterinary Medicine for a 2-week history of seizures and altered behavior. Magnetic resonance imaging (MRI) revealed a homogeneously enhancing mass involving the surface of the left temporal, parietal, and
Originally described and most frequently reported in association with the kidney, the malignant rhabdoid tumor (MRT) is a highly aggressive neoplasm with distinctive morphologic features. Extrarenal sites reported for this neoplasm include the liver, thymus, and various soft tissue sites. Young
A case of benign chondroblastoma extending from the nasal cavity to the frontal region, was reported. A 1-year and 9-month old girl was admitted to our hospital in April 1981 because of generalized convulsion. On admission, she was intact neurologically and had It. nasal obstruction and It. eye
A case of unusual fibro-osseous lesion resembling osteoblastoma of the pineal region is reported, in a 50-year-old man. The patient presented with a history of headache, vomiting and generalized tonic-clonic seizures. CT scan showed a hyperdense lesion in the posterior third ventricle with
A 10-yr-old female lion (Panthera leo) presented for acute onset ataxia and weakness with a history of two seizure episodes 6 mo prior to presentation and a persistent head tilt for at least 6 mo. Gross necropsy findings included a gelatinous mass in the right cerebral hemisphere extending from the
Two adult male dogs (a 7-year-old shorthaired Chihuahua and 14-year-old Shih Tzu) and one adult female dog (a 9-year-old Maltese) presented for evaluation of new-onset seizure activity. Magnetic resonance imaging of the brain demonstrated a large, poorly marginated T2-weighted hyperintense, and
A 10-year-old, female spayed Chihuahua dog was presented to the Veterinary Teaching Hospital at the University of Georgia for evaluation of seizures, abnormal mentation, and cervical pain of 2 months duration. On magnetic resonance imaging, there was generalized thickening of the meninges overlying
Microvessels were isolated from non-neoplastic human cerebral cortical fragments resected for treatment of intractable seizure disorder. The microvessels were incubated in modified Lewis medium with 20 or 30% fetal bovine serum. Within 1-2 weeks, two cell populations emerged from the isolates. One
We report an autopsy case of tuberous sclerosis. A 19-year-old Japanese man had shown facial adenoma sebaceum, intractable convulsive seizures and severe mental retardation. Gross inspection of the brain showed a cortical tuber from the orbital frontal lobe to the rhinencephalon of the left side and
Oligodendroglioma is a common brain tumor in dogs, particularly brachycephalic breeds. Oligodendrocyte precursor cells (OPCs) are suspected to be a possible origin of oligodendroglioma, although it has not been well elucidated. In the present study, 27 cases of canine brain oligodendrogliomas were
Gliomas are common primary central nervous system neoplasms of dogs and cats, but atypical glioma subtypes are rare. Herein we report an angiocentric astrocytoma in a 15-y-old spayed female domestic shorthaired cat that was euthanized after therapy-resistant seizures. Gross anatomic changes
A 15-y-old neutered male domestic shorthaired cat was presented with a 16-d history of hindlimb paralysis in conjunction with 1-wk duration of inappetence and lethargy. Given intractable clinical signs, development of seizures, and poor prognosis, euthanasia was elected. Gross examination revealed
A 13-year-old, mixed breed dog presented with a 1-month history of seizures. Magnetic resonance imaging of the brain revealed a 2.2 × 1.0 × 0.9 cm ovoid and elongate cystic mass within the white matter of the left frontal lobe extending caudally from the cribriform plate to the rostral left lateral