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Histopathological Correlation (histopathological + correlation)
Selected AbstractsHistopathological Correlation of Ablation Lesions Guided by Noncontact Mapping in a Patient with Peripartum Cardiomyopathy and Ventricular TachycardiaPACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 12 2001EUGEN C. PALMA PALMA, E.C., et al.: Histopathological Correlation of Ablation Lesions Guided by Noncontact Mapping in a Patient with Peripartum Cardiomyopathy and Ventricular Tachycardia. A patient with peripartum cardiomyopathy developed a nearly incessant nonsustained VT. Guided by a noncontact mapping system, the tachycardia was mapped to the mid-septum of the right ventricle and ablated. Despite transient success, the tachycardia recurred and the patient subsequently died of multiorgan failure. Histopathological correlation of the ablation site revealed a nontransmural lesion that may have contributed to the failure of the ablation. [source] Primary serous papillary carcinoma of the retroperitoneum: magnetic resonance imaging findings with pathologic correlationJOURNAL OF MEDICAL IMAGING AND RADIATION ONCOLOGY, Issue 2007MK Demir SUMMARY The incidence of a primary serous papillary carcinoma of the retroperitoneum is extremely rare. We present a case of the tumour in an adult simulating an adrenal mass with MRI findings and histopathological correlation. [source] Apparent diffusion coefficient in pancreatic cancer: Characterization and histopathological correlationsJOURNAL OF MAGNETIC RESONANCE IMAGING, Issue 6 2008Noriaki Muraoka MD Abstract Purpose To clarify the components primarily responsible for diffusion abnormalities in pancreatic cancerous tissue. Materials and Methods Subjects comprised 10 patients with surgically confirmed pancreatic cancer. Diffusion-weighted (DW) echo-planar imaging (b value = 0, 500 s/mm2) was employed to calculate the apparent diffusion coefficient (ADC). ADC values of cancer and noncancerous tissue were calculated. Furthermore, ADC values of the cancer were compared with histopathological results. Results The mean (±standard deviation) ADC value was significantly lower for tumor (1.27 ± 0.52 × 10,3 mm2/s) than for noncancerous tissue (1.90 ± 0.41 × 10,3 mm2/s, P < 0.05). Histopathological examination showed similar proportions of fibrotic area, cellular component, necrosis, and mucin in each case. Regarding the density of fibrosis in cancer, three cases were classified in the loose fibrosis group and the remaining seven cases were classified in the dense fibrosis group. The mean ADC value was significantly higher in the loose fibrosis group (1.88 ± 0.39 × 10,3 mm2/s) than in the dense fibrosis group (1.01 ± 0.29 × 10,3 mm2/s, P < 0.05). In quantitative analysis, ADC correlated well with the proportion of collagenous fibers (r = ,0.87, P < 0.05). Conclusion Collagenous fibers may be responsible for diffusion abnormalities in pancreatic cancer. J. Magn. Reson. Imaging 2008;27:1302,1308. © 2008 Wiley-Liss, Inc. [source] | ||||||||||