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排序方式: 共有677条查询结果,搜索用时 0 毫秒
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Neuroimaging in Pineal Tumors 总被引:4,自引:0,他引:4
F Reis MD AV Faria MD PhD VA Zanardi MD PhD JR Menezes MD F Cendes MD PhD LS Queiroz MD PhD 《Journal of neuroimaging》2006,16(1):52-58
BACKGROUND AND PURPOSE: The authors report radiological findings in 11 tumors in the pineal region, which were histologically diagnosed as germinomas, pineocytomas pineoblastomas, ependymomas, teratomas, and astrocytomas. METHODS: Computed tomography (CT) was performed in seven patients and magnetic resonance imaging (MRI) was performed in all patients. RESULTS: CT showed a solid or solid/cystic mass with variable contrast enhancement. MRI showed a heterogeneous mass, with hypointense signal on T1 and iso/hyperintense signal on T2-weighted images (WI) and gadolinium enhancement. Extension to adjacent structures occurred in five patients and spread through the cerebral spinal fluid (CSF) in two. CONCLUSIONS: Pineal region tumors have no pathognomonic imaging pattern. MRI and CT are complementary in diagnosis and are important to determine localization, extension, and meningeal spread. 相似文献
3.
Koppler H.; Pfluger K.-H.; Eschenbach I.; Pfab R.; Birkmann J.; Zeller W.; Holle R.; Steinhauer U. E.; Gropp C.; Oehl S.; Lennert K.; Parwaresch M. R.; Kuhn H.; Drings P.; Gossmann H. H.; Khoury M.; Schubotz R.; Havemann K. 《Annals of oncology》1994,5(1):49-55
Background: With CHOP, the standard protocol of recent decades,about 30% of long-term survival has been reported. A numberof studies using more aggressive multidrug regimens or alternatingchemotherapies have recently suggested higher CR rates and increasedsurvival. In 1989 we reported similar results with a combined-modalitytreatment administering 6 cycles of CHOP supplemented with etoposideand an involved field irradiation for patients in PR or CR. Patients and methods: To confirm the efficacy of this approach,we initiated a prospective randomised trial comparing 4 cyclesof CHOP-VP 16 (CHOEP) with 4 cycles of two alternating regimens,hCHOP and IVEP. One hundred seventy-five patientswith high-grade non-Hodgkin's lymphomas stages II-IV were stratifiedfor age, stage and LDH and randomised to receive either fourcycles of cyclophosphamide, doxorubicin, vincristine, etoposide,prednisolone (CHOEP) in arm A or four cycles of chemotherapywith a dose-intensified CHOP (hCHOP) alternating with ifosfamide,etoposide, vindesine, prednisolone (IVEP) in arm B. After fourcycles of chemotherapy an involved field irradiation with atotal dose of 35 Gy was given to all patients demonstrated tobe in complete or partial remission. Results: Of the 185 randomised patients, 175 were eligible and171 evaluable for response and survival. One hundred forty-sixof the 171 patients (85%) achieved complete remission (CR) with87% and 84% CRs in arms A and B, respectively. With a medianfollow-up of 36 months the estimated overall survival at 2 yearsis 66% and 73% for arms A and B. The percentage of all patientsin first CR is estimated to be 59% and 55% at 2 years for armsA and B, respectively. None of the differences in CR rate, survival,or relapse-free survival are statistically significant. Multivariateanalysis of subgroups incorporating the factors of sex, age,performance status, stage, B symptoms, bulky disease, LDH andhistology revealed that only stage and LDH were factors whichindependently affected outcome. The estimated 2-year survivalrate of patients with stages II, III and IV is predicted tobe 84%, 62% and 52%, respectively. Patients with LDH >250U/I have an estimated survival of 52% at 2 years versus 84%for patients with LDH 相似文献
4.
Histopathologic specimens from 249 patients with small cell lung cancer (SCLC) were reviewed and classified into oat cell-type, pure intermediate cell-type (excluding specimens with mixed small cell/large cell features), and small cell/large cell-type. One hundred seventy (68%) specimens displayed oat cell features (including 30 with mixed oat cell/intermediate cell features), 66 (27%) displayed intermediate cell features, and 13 (5%) displayed mixed small cell/large cell features. No differences among these subtypes were found with respect to stage of disease, sex, age, performance status, and number and distribution of metastases. Complete and partial remission rates for the oat cell-type were, respectively, 31% and 38%, for the intermediate cell-type 20% and 45%, and for the small cell/large cell-type 38% and 31%. Two-year survival rates were 7%, 11%, and 15%, respectively. These data were all statistically insignificant, and comparisons of log-rank analyses of survival curves for these SCLC subtypes also showed no statistically significant differences. We thus conclude that histologic subtypes of SCLC are not distinct entities of clinical relevance, and that prognostic as well as therapeutic decisions cannot be based on histologic subtyping. 相似文献
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L Illig K R Aigner B Biess J G?hl R Holle M Hundeiker G Scharfe H Tilkorn J Tonak 《Cancer》1988,61(6):1200-1206
Elective radical groin dissection was performed on 297 consecutive patients with high-risk melanoma of the leg, Anderson Stages I, IIA, IIIA. By separate histologic examination of the so-called "Rosenmüller's node," the other inguinal, and the external iliac lymph nodes, the diagnostic excision of the Rosenmüller's node was tested as a suitable mode of screening for metastases before a planned elective regional lymph node dissection. Eighty patients (27%) presented with what was histologically determined to be occult groin metastases. Rosenmüller's node was involved in 30 of these cases; in the remaining 50, however, it was not affected; that is, 63% of the cases were false-negative. Thus, the involvement of Rosenmüller's node is not representative of metastases in the other ilioinguinal lymph nodes, but is rather a matter of chance. In women with superficial spreading melanoma the rate of occult lymph node metastases was significantly lower than that in men with melanomas of the other type. Iliac lymph node involvement was observed in 18 patients (22%) depending on clinical stage and depth of invasion of the primary tumor. 相似文献
7.
Myo-inositol transport in the central nervous system 总被引:18,自引:0,他引:18
8.
H. -J. Dittler K. H. Welsch F. Holle 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》1978,347(1):646-646
Zusammenfassung Bei traumatisch bedingten ausgedehnten Weichteildefekten der oberen Extremität stellt, wenn herkömmliche Methoden nicht möglich, unsicher oder zu zeitraubend erscheinen, die Omentum-Transposition eine Alternative in der Therapie dar. Trotz der nachfolgenden Fibrosierung lassen sich große Wundflächen decken. Das Transponat bietet eine gut durchblutete Matrix für die Aufnahme von Spalthaut. Eine Laparotomie und operative Versorgung des Omentalstumpfes sind erforderlich, ausgedehnte Narben und lange Ruhigstellung entfallen aber. Das technisch nicht schwierige Verfahren ist in der Regel nach 6–8 Wochen beendet. 相似文献
9.
Labial adhesions are usually seen in early childhood or in the postmenopausal years, but this clinical entity is rarely seen in the reproductive years. We report a case of labial adhesion with acute urinary retention secondary to Bartholin's abscess in a reproductive‐aged woman with normal menstrual periods. We emphasize the possible occurrence of labial adhesion following Bartholin's abscess in the reproductive years with normal estrogen levels. 相似文献
10.
Granulomatosis with polyangitis (GPA, Wegener’s granulomatosis) is characterized by a granulomatous inflammation of the respiratory tract and a necrotizing ANCA-associated small to medium-size vessel vasculitis with a predilection for the lungs (pulmonary capillaritis) and kidneys (necrotizing glomerulonephritis). The disease evolves stage-wise and typically starts as inflammation of the respiratory tract followed by development of systemic vasculitis manifestations. Today, treatment is evidence-based and adapted according to activity and disease stage which has resulted in a significant improvement in long-term outcome. Early mortality during the first year of treatment poses one of the main problems and is a result of infections under immunosuppressive treatment. Furthermore, treatment of refractory disease activity which is often represented by granulomatous manifestations is still a challenge and may result in significant organ damage if not treated successfully. 相似文献