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Takahashi Y.,Hokuto Hospital | Hashimoto N.,Osaka University | Akihiko H.,Saiseikai Shiga Hospital
Neurologia Medico-Chirurgica | Year: 2010

Epidural hematoma is typically caused by direct head trauma. Spontaneous epidural hematoma can be caused by infections of adjacent regions, vascular malformations of the dura mater, and disorders of blood coagulation. A 10-year-old girl with no history of head injury presented with complaints of headache and fever. On arrival at our hospital, her Glasgow Coma Scale score was 13 and neurological examination revealed right oculomotor palsy and left hemiparesis. Computed tomography (CT) showed an epidural hematoma in the right temporal base. Preoperative angiography identified no specific vascular lesions. Removal of the hematoma was undertaken immediately. Retrospective evaluation of the preoperative CT revealed sphenoid sinusitis and a bone defect between the temporal base and the sphenoid sinus. The epidural hematoma was probably caused by the spread of inflammation from the sphenoid sinus. Sphenoid sinusitis is one of the possible causes of acute epidural hematoma, especially if no traumatic episodes or risk factors can be identified. Source


Norimatsu Y.,Ehime Prefectural University of Health Sciences | Shigematsu Y.,Shigei Medical Research Hospital | Sakamoto S.,Red Cross | Ohsaki H.,Ehime Prefectural University of Health Sciences | And 4 more authors.
Diagnostic Cytopathology | Year: 2012

This study was to clarify the nuclear features of "condensed clusters of stromal cells (EGBD-stromal cells)" and "metaplastic clumps with irregular protrusions (EGBD-metaplastic cells)" which may be recognized in endometrial glandular and stromal breakdown (EGBD) cases in liquid-based cytologic (LBC) preparations of endometrial brushings. The material consists of cytologic smears of 20 cases of proliferative endometrium (PE), 20 cases of EGBD, and 20 cases of endometrioid adenocarcinoma grade 1 (G1) for which histopathological diagnosis was obtained by endometrial curettage. Nuclear findings were examined in PE cells, EGBD-stromal cells, EGBD-metaplastic cells, and G1 cells, respectively. It was examined about the following items: (1) Nuclear shape; (2) A long/minor axis ratio in cell nuclei; (3) An area of cell nuclei; (4) Overlapping nuclei; (5) The distribution pattern of nuclei within cell clusters. The following observations were made: (1) In PE cells, round-oval nuclei appeared to predominate, overlapping nuclei were not observed, and a slightly abnormal distribution pattern of nuclei was recorded; (2) In EGBD-stromal cells, reniform nuclei were characteristically observed, nuclei had small size and a generally elongated appearance, overlapping nuclei were recognized, and a remarkable abnormal distribution pattern of nuclei was found; (3) In EGBD-metaplastic cells, spindle nuclei were a characteristic feature, nuclei were larger in size and had a bipolar appearance, overlapping nuclei with moderately abnormal distribution pattern of nuclei were identified; (4) In G1 cells round-oval nuclei predominated, overlapping nuclei with moderately abnormal distribution pattern of nuclei were found. The study demonstrates that the analysis of selected nuclear findings appears to be very useful in the cytopathological assessment of endometrial lesions in LBC samples, especially for the discrimination of EGBD and G1. Copyright © 2012 Wiley Periodicals, Inc. Source


Norimatsu Y.,Ehime Prefectural University of Health Sciences | Ohsaki H.,Ehime Prefectural University of Health Sciences | Yanoh K.,Suzuka General Hospital | Kawanishi N.,Mihara Medical Associations Hospital | And 2 more authors.
Diagnostic Cytopathology | Year: 2013

It is well known that "condensed cluster of stromal cells (CCSC)" and "metaplastic clumps with irregular protrusion (MCIP)" in endometrial glandular and stromal breakdown (EGBD) cases may simulate "clumps of cancer cells (CCC)" in endometrioid adenocarcinoma grade 1 (G1), leading to difficulty in cytological interpretation. The aim of this study was undertaken to clarify the cytological immunoreactivity of nuclear findings about CCSC and MCIP which may be recognized in EGBD cases by using p53 protein and cyclin A in liquid-based cytologic (LBC) preparations. The material consists of cytologic smears of 20 cases of EGBD and 20 cases of G1 for which histopathological diagnosis was obtained by endometrial curettage at the JA Suzuka General Hospital. The evaluation of immunoreactivity was performed by using the intensity of nuclear staining and the nuclear labeling index (N-LI). The intensity of nuclear staining was scored as negative (0), weak (1), moderate (2), or strong (3). The N-LI was scored as less than 10% (0), from 10 to 25% (1), from 26 to 50% (2), or greater than 50% (3). The final score was calculated of the addition of both partial scores. Results are as follows: As for the p53 protein immunoreactivity, CCC (2.4 ± 1.4) was a significantly higher value in comparison with CCSC (0) and MCIP (0.8 ± 0.4), respectively. As for the cyclin A immunoreactivity, CCC (2.8 ± 1.1) was a significantly higher value in comparison with CCSC (0) and MCIP (0.6 ± 0.5), respectively. CCSC and MCIP in EGBD are misunderstood as cellular atypia and structural atypia on occasion; but, as for results of the immunoreactivity scores of p53 protein and cyclin A in our study, it seemed that those biochemical characters proved that the biological activity level was low (or degenerative). The results of the current study demonstrated that the cytological immunoreactivity of nuclear findings by p53 and cyclin A appear to be more useful for the LBC assessment of endometrial lesions, especially for the discrimination of EGBD and G1.Diagn. Copyright © 2011 Wiley Periodicals, Inc. Source


Kikuchi K.,Yame Public General Hospital | Uchikado H.,Kurume University | Miyagi N.,Yame Public General Hospital | Morimoto Y.,Kagoshima University | And 10 more authors.
International Journal of Molecular Medicine | Year: 2011

Free radicals play major roles in the pathogenesis of tissue damage in many diseases and clinical conditions, and the removal of free radicals may offer a treatment option. Several modulators of free radical scavenger pathways have been developed and some have progressed to clinical trials. One such agent, edaravone, was approved in 2001 in Japan for the treatment of cerebral infarction. It has since been shown that edaravone can diffuse into many organs and, in addition to its effects on hydroxyl radical removal, edaravone modulates inflammatory processes, matrix metalloproteinase levels, nitric oxide production, apoptotic cell death, and necrotic cell death. Edaravone also exerts protective effects in a number of animal models of disease and tissue damage, including models of myocardial, lung, intestinal, liver, pancreatic and renal injury. Together with the proven safety of edaravone following 9 years of use as a modulator of free radical scavenging pathways in neurological disease, these additional effects of edaravone suggest that it may offer a novel treatment for several non-neurological diseases and clinical conditions in humans. Source


Fujimoto T.,Hyogo Cancer Center | Andoh T.,Kobe Gakuin University | Sudo T.,Section of Translational Research | Fujita I.,Hyogo Cancer Center | And 12 more authors.
Applied Radiation and Isotopes | Year: 2013

Clear cell sarcoma of tendons and aponeuroses (CCS) is a rare malignant tumor with no effective treatment. This study demonstrates the efficacy of BNCT with the use of human CCS-bearing nude mice. Groups A and C were administered saline, and groups B and D were injected with p-borono- l-phenylalanine-fructose complex. Groups C and D were then irradiated with thermal neutrons. The tumors in only group D disappeared, demonstrating that BNCT is a potentially new option for the treatment of human CCS. © 2012 Elsevier Ltd. Source

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