RESUMEN
Objective To evaluate the magnetic resonance imaging (MRI) findings in differential diagnosis between the adult reversible splenial lesion syndrome (RESLES) and ischemic infarction of the splenium of the corpus callosum (SCC). Methods The MRI findings and clinical data of 7 RESLES patients and 13 patients with ischemic infarction of SCC who were clinically diagnosed and treated in our center from May 2015 to June 2017 were analyzed retrospectively. The main MRI findings included location,morphology,signal intensity,maximum cross-sectional area,diffusion weighted imaging (DWI),and apparent diffusion coefficient (ADC) value. Results On the MRI findings of 7 RESLES patients (5 males and 2 females),the centers of all lesions of the SCC were located in the midline of SCC,the lesion shapes were round,ellipse,or spindle,and the distribution of the lesions was bilateral and symmetric as the center of the midline of SCC. The lesions were hyperintense on DWI,and the mean maximum cross-sectional area of lesions was (56.9±32.6) mm and the mean ADC value was (0.3963±0.0715) ×10 mm/s. On the review MRI,all the lesions disappeared (mean interval:10 days). On the MRI findings of 13 patients with ischemic infarction of SCC (10 males and 3 females),the lesions were irregular or patchy in shape and were almost laterally and asymmetrically distributed. The lesions were hyperintense on DWI,and the mean maximum cross-sectional area was (55.1±43.9) mm and the mean ADC value was (0.4978±0.0123) ×10 mm/s. The mean maximum cross-sectional area (t=0.096,P=0.925) and the ADC value (t=-1.988,P=0.062) were not significantly different between RESLES group and ischemic infarction of SCC group. Conclusions The location,morphology,and distribution of the SCC lesions and the co-existence of other lesions in the brain are helpful for the differential diagnosis between RESLES and ischemic infarction of SCC. However,the mean maximum cross-sectional area and the ADC value show no obvious difference between these two diseases.
RESUMEN
<p><b>OBJECTIVE</b>To study the correlation of apparent diffusion coefficient (ADC) measured by diffusion-weighted magnetic resonance imaging (MRI) with the molecular subtypes and biological prognostic factors of invasive breast cancer masses.</p><p><b>METHODS</b>Breast MRI data (including dynamic enhanced and diffusion-weighted imaging) were collected from 64 patients with pathologically confirmed invasive breast cancer masses (a total of 69 lesions). The mean ADC values of the lesions were calculated and their correlations were analyzed with the 5 molecular subtypes of invasive breast cancer and the biological prognostic factors including estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor 2 (HER2), and Ki-67 index.</p><p><b>RESULTS</b>The ADC values did not differ significantly among the 5 molecular subtypes of invasive breast cancer masses (P>0.05) or among lesions with different ER, PR, or HER2 status (P>0.05). The mean ADC values were significantly higher in Ki-67-positive lesions than in the negative lesions (P=0.023 and negatively correlated with the expressions of Ki-67 (r=-0.249).</p><p><b>CONCLUSION</b>ADC value can not be used to identify the molecular subtypes of invasive breast cancer masses or to evaluate the biological prognosis of the lesions, but its correlation with Ki-67 expression may help in prognostic evaluation and guiding clinical therapy of the tumors.</p>
RESUMEN
Objective To investigate the serum levels of vascular endothelial growth factor (VEGF) and C-reactive protein (CRP) in patients with acute intra-cerebral hemorrhage and explore their significance. Methods Seventy-eight patients with acute intra-cerebral hemorrhage (the mild,n=39; the moderate,n=25; and the severe,n=14),treated in our hospital from August 2008 to August 2011,were selected in this research, and 78 healthy controls received healthy examination at the same time were also selected.Enzyme-linked immunoassay (ELISA) was used to detect the serum level of VEGF,while immunoturbidimetry was used to detect the serum level of CRP. Results The levels of VEGF and CRP of acute intra-cerebral hemorrhage patients were all significantly higher than those of healthy persons (P＜0.05); VEGF and CRP serum levels in severe, were decreased in turn with significant difference (P＜0.05).And VEGF and CRP serum levels of dead patients (n=16) were also significantly higher than those of survive patients (n=62, P＜0.05). Conclusion VEGF and CRP serum levels of acute intra-cerebral hemorrhage patients are significantly higher than those of healthy persons, and they all have strong positive relationship with the seventy and prognosis of the disease.