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Purpose: The purpose of this study was to investigate the prognostic value of the minimum apparent diffusion coefficient (ADCmin) derived from diffusion-weighted MR imaging and of the maximum standardized uptake value (SUVmax) derived from PET/CT imaging of the primary tumour in patients with endometrial cancer., Methods: SUVmax reflects the highest tumour metabolism rate and ADCmin reflects the highest cellularity, and both parameters have been used for tumour grading and prediction of prognosis. The correlations between prognosis and SUVmax and ADCmin of the primary tumour were determined in 131 patients with endometrial cancer. The patients were divided into groups based on ADCmin and SUVmax cut-off values to predict recurrence and survival, which were derived from receiver operating characteristic curves. Disease-free survival (DFS) and overall survival (OS) of the groups were analysed using the Kaplan-Meier method, and differences between survival curves were evaluated using the log-rank test., Results: The median DFS and OS times of all patients were 19.2 and 20.5 months (follow-up periods 1-70 months for both DFS and OS), respectively. Patients with high SUVmax had significantly lower DFS (P < 0.0001) and OS (P = 0.0092) than patients with low SUVmax. Multivariate analysis showed that high SUVmax was an independent prognostic factor for both DFS (P = 0.0161) and OS (P = 0.0232)., Conclusion: The SUVmax of the primary tumour derived from PET/CT imaging could be an important prognostic indicator of recurrence and survival in patients with endometrial cancer.

Purpose: The objectives of this study were to determine if measurements of the maximum standardized uptake value (SUVmax) by positron emission tomography/computed tomography and minimum apparent diffusion coefficient (ADCmin) by magnetic resonance imaging are correlated with the clinical characteristics and prognosis of primary cervical cancer., Methods: The correlations between biological parameters and prognosis and SUVmax and ADCmin of the primary tumour were determined in 66 patients with cervical cancer before radiotherapy or concurrent chemoradiotherapy., Results: There were significant correlations between SUVmax of the primary tumour and FIGO stage (p = 0.036), tumour maximum size (p = 0.018) and pelvic lymph node metastasis (p = 0.044). The median durations of disease-free survival (DFS) and overall survival (OS) were 16.1 and 19.2 months, respectively. The DFS and OS of patients exhibiting high SUVmax of the primary tumour were significantly lower than those of patients exhibiting low SUVmax of the primary tumour (p = 0.0171 and p = 0.0367). The OS of patients exhibiting low ADCmin of the primary tumour was significantly lower than that of patients exhibiting high ADCmin of the primary tumour (p = 0.0376). The DFS and OS of patients exhibiting high SUVmax together with low ADCmin of the primary tumour were significantly lower (p = 0.003 and p = 0.001). Multivariate analyses showed that high SUVmax together with low ADCmin of the primary tumour was an independent prognostic factor for both DFS (p = 0.0030) and OS (p = 0.0036)., Conclusion: High SUVmax together with low ADCmin of the primary tumour is an important predictive factor for identifying patients with cervical cancer who have a poor prognosis.

Epidermoid cyst of the ovary is a very rare tumor. There have been only 21 case reports of it previously. We describe the computed tomography (CT) and magnetic resonance (MR) findings of 2 cases of ovarian epidermoid cyst. To our knowledge, this is the first report describing CT and MR findings of epidermoid cysts of the ovary, and ruptured epidermoid cyst of the ovary has never been reported.

Helical computed tomography (CT) was used to demonstrate the distribution of crossing vessels in patients with ureteropelvic junction (UPJ) obstruction for planning surgical management. Twenty patients with symptomatic UPJ obstruction were evaluated with dual-phase contrast material-enhanced helical CT. In addition to axial images, coronal, sagittal, and curved paracoronal images along the crossing vessels or the UPJ were obtained by means of multiplanar reconstruction. Crossing vessels were evaluated according to type, position, and association with UPJ obstruction. Fifteen vessels in 12 of the 20 patients were found to cross the UPJ at helical CT. Nine vessels were arteries and six were veins; seven vessels crossed anteriorly and eight crossed posteriorly. In 11 patients, crossing vessels were thought to be associated with UPJ obstruction at helical CT; retroperitoneoscopic repair was performed, and the diagnosis was found to have been accurate in all except one. In the eight patients in whom no significant vessels were seen and the one patient in whom the crossing vessel was not associated with UPJ obstruction at helical CT, endopyelotomy was performed and UPJ obstruction was relieved, with no complications. Helical CT is useful for evaluation of vessels crossing the UPJ and for planning surgical management.