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  • 1
    ISSN: 0942-0940
    Keywords: Glioma ; thalamus ; treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty patients (M 11, F 9; ranging from 1–77 years old) with histologically proven glial tumours in the thalamic region, treated from 1979 until 1994 at Kyushu University Hospital were retrospectively reviewed and analysed in order to elucidate their clinical and neuropathological characteristics. The initial common clinical manifestations were those of increased intracranial pressure or motor weakness. The histological diagnosis of the tumour was pilocytic astrocytoma in 2 patients, fibrillary astrocytoma in 7, anaplastic astrocytoma in 7, and glioblastoma multiforme in 4. The initial treatment was surgery alone in 4 patients, surgery followed by radiation therapy in 5, surgery followed by radiation therapy and chemotherapy in 9, and conventional radiation therapy alone in 2 patients. The 3-year overall actuarial survival rate for all patients was 20% but was related to both the histological type and the age of the patients: As a result, the rate was 44% for patients with low-grade astrocytoma compared to 0% for those with high-grade astrocytoma. While 5 out of 11 patients under the age of 25 years at their initial presentation have survived for from 2–16 years after the diagnosis, all patients presenting after the age of 25 years died within 3 years after treatment. Thalamic glial tumours are not a homogeneous group of tumours in terms of clinical behaviour and histopathological features, and the poor overall results, especially in adult tumours, thus emphasise the need for continued research in the treatment of these tumours.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Experimental gliomas ; Ethylnitrosourea ; Blood-brain barrier ; Peroxidase leakage ; Morphometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The fine structure, histometric characteristics, and permeability of microvessels were studied by electron microscopy in normal and in ethylnitrosourea (ENU)-induced glioma tissue from rats, using horseradish peroxidase (HRP) as a tracer. The tumor vessels were classified into (1) capillary buds (Type I); (2) round small to large capillaries (Type II); (3) sinusoidal or venule-like microvessels (Type III), and (4) abnormal arteriole-like microvessels (Type IV). All endothelial cells, basement membranes and periendothelial cells in the tumor tissue demonstrated changes in structure. The most striking alterations occurred in the endothelial cells; there were abnormal endothelial tight junctions, altered pinocytotic activity, and thickening. In the tracer study, the reaction product of HRP was present around some sinusoidal or venule-like microvessels (Type III) and extended to the widened extracellular spaces around the microvessels. The endothelial cells of Type III microvessels showed decreased nuclear and mitochondrial fractions, and increased euchromatin content and a rough endoplasmic reticulum fraction. The pinocytotic vesicles with the HRP reaction product in the endothelial cells were not increased in number. Fenestrations and gaps of the endothelial cells were observed. These alterations of the endothelial cells of sinusoidal or venule-like microvessels (Type III) are considered to be the main cause of breakdown of the blood-brain barrier in this tumor.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1433-3023
    Keywords: β 2-agonist ; Bladder dysfunction ; Cervical cancer ; Radiation therapy ; Radical hysterectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of severe bladder dysfunction due to a high-dose irradiation of 180 Gy after radical hysterectomy for cervical cancer is presented. The patient had suffered from urinary disturbances for 11 years after operation and radiation therapy. The results of urodynamic studies were low capacity, low compliance and low urethral pressure. The β 2-agonist mabuterol was administered for 3 years. Bladder capacity, compliance and urethral closure pressure improved significantly after the treatment. The voided volume increased significantly to twice the pretreatment state. Frequency, incontinence and urine loss by the 60-minute padweighing test decreased significantly to one-third to one-fifth of the pretreatment state. The patient is doing well without any side effects 3 years after initiation of the treatment.
    Type of Medium: Electronic Resource
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