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Uterine Cervical Carcinoma (uterine + cervical_carcinoma)
Selected AbstractsCapillary permeability and extracellular volume fraction in uterine cervical cancer as patient outcome predictors: Measurements by using dynamic MRI spin-lattice relaxometryJOURNAL OF MAGNETIC RESONANCE IMAGING, Issue 4 2008Véronique Dedieu PhD Abstract Purpose To improve the outcome prediction of uterine cervical carcinoma by measuring the vascular permeability (kep) and the extracellular volume fraction (ve) of the tumor from Dynamic T1 - IRM Relaxometry. Materials and Methods Twenty-six patients with proven cervical carcinoma were divided into good outcome and poor outcome groups. Classic tumor prognostic factors, the longest diameter L and the volume V of the tumor, were measured from morphologic MR images. The tumor parameters kep and ve were determined from the relaxometry time-curve acquired during the contrast uptake after a bolus intravenous injection of an extracellular contrast agent. Results All "small" tumors (L<35 mm or V<11 cm3) were good outcome with 100% sensitivity but a rather low specificity (36% and 43% for L and V, respectively). With regard to the physiopathological parameter kep, "large" tumors (L , 35mm) can also be classified as good outcome on the condition that kep , 2.2 min,1 with 100% sensitivity and 89% specificity. Regarding the extracellular volume fraction (ve), no significant difference was observed between the two groups. Conclusion Measurement of the tumor vascular permeability might be useful to predict prognostic, to evaluate the treatment efficacy, and to adapt a proper therapy schedule. J. Magn. Reson. Imaging 2008;27:846,853. © 2008 Wiley-Liss, Inc. [source] Comparison of the accuracy of magnetic resonance imaging and positron emission tomography/computed tomography in the presurgical detection of lymph node metastases in patients with uterine cervical carcinomaCANCER, Issue 4 2006A prospective study Abstract BACKGROUND The objective of the current study was to determine the accuracy of magnetic resonance imaging (MRI) and positron emission tomography/computed tomography (PET/CT) for detecting lymph node metastases in patients with uterine cervical carcinoma compared with thin-section histopathologic results from systemic lymphadenectomy. METHODS Twenty-two patients with International Federation of Obstetrics and Gynecology (FIGO) Stage IB,IVA cervical carcinoma who underwent both MRI and PET/CT before lymphadenectomy were included in this study. Lymphadenectomy involved removing all visible lymph nodes in the surgical fields. To enable region-specific comparisons, paraaortic and pelvic lymph nodes were divided into seven regions: the paraaortic area, both common iliac areas, both external iliac areas, and both internal iliac/obturator areas. Histopathologic evaluation of lymph nodes was the diagnostic standard. Chi-square analysis was used to compare the accuracy of MRI and PET/CT for the detection of metastatic lymph nodes. A P value , 0.05 was considered statistically significant. RESULTS With MRI, the sensitivity, specificity, and accuracy rates for detecting metastatic lymph nodes in each lymph node group were 30.3% (10 of 33 lymph node groups), 92.6% (112 of 121 lymph node groups), and 72.7% (122 of 154 lymph node groups), respectively; with PET/CT, those rates were 57.6% (19 of 33 lymph node groups), 92.6% (112 of 121 lymph node groups), and 85.1% (131 of 154 lymph node groups), respectively. Statistical analysis showed that PET/CT was more sensitive than MRI (P = 0.026) but that there were no statistical differences noted with regard to specificity (P = 1.000) or accuracy (P = 0.180). Power analysis demonstrated that a sample size of 685 lymph node groups (98 patients) would be necessary to demonstrate that PET/CT was more accurate than MRI (, = 0.05; , = 0.80). CONCLUSIONS PET/CT was more sensitive than MRI for detecting lymph node metastases in patients with uterine cervical carcinoma. Cancer 2006. © 2006 American Cancer Society. [source] A Clinicopathological Study of Postoperatively Upgraded Early Squamous-Cell Carcinoma of the Uterine CervixJOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 4 2000Dr. Manabu Yoshida Abstract Objective: To investigate the clinicopathological backgrounds and diagnostic problems of postoperatively upgraded early squamous-cell carcinomas of the uterine cervix Patients and Methods: A total of 23 patients with postoperatively upgraded early squamous-cell carcinomas who were treated at the Saitama Cancer Center during the period of January 1, 1976, through December 31, 1991, were analyzed clinicopathologically. We reexamined the Pap smears (ectocervix, endocervix), colposcopic findings, punch biopsies, and histological findings of the operative specimens. All patients were divided into one of 3 groups based on each patient's main location of the carcinoma of the cervix: Type A: ectocervical type; Type B: endocervical type; or Type C: combined (ectocervical and endocervical) type. Clinical staging of the uterine cervical carcinomas was done in accordance with the 1994 FIGO rules. Results: The numbers of patients were: Type A, 2; Type B, 10; Type C, 11. Of the 23 patients, 21 (91.3%) had lesions in the endocervical portion at least. Fifteen patients (65.2%) complained of atypical vaginal bleeding. Colposcopic findings suggesting an invasive carcinoma appeared for only 6 patients (26.1%). A cytological reevaluation revealed that the endocervical findings were much stronger than the ectocervical ones in 10 (66.7%) of 15 patients whose smears of both sites could be rechecked. Conclusions: Even if the preoperative diagnosis was early cervical carcinoma, CIS or Stage Ia1, the signs of atypical vaginal bleeding suggested that the final clinical stage would be upgraded after an operation. Furthermore, when the endocervical cytological findings were much more exaggerated than the ectocervical ones, the possibility of deeply invaded endocervical lesions should be considered. [source] | ||||||||||