Objective The aim was to study the correlation of placental thickness, measured at the level of the umbilical cord insertion, with the ultrasonographic gestational age in normal and IUGR pregnancies in the late second and third trimester. Materials and Methods A total of 498 patients were observed for correlation of the placental thickness with ultr-

The multitude of diseases affecting the mediastinum varies considerably, comprising of tumors (benign to extremely malignant), cysts, vascular anomalies, lymph node masses, mediastinitis, mediastinal fibrosis, and pneumomediastinum. Current research aimed to study the computed tomographic characteristics of Mediastinal mass lesions in Plain and Contrast-enhanced scans and to study the distribution of mediastinal masses and their extension to adjacent structures and compare the CT findings with pathological diagnosis wherever possible. Materials and Methods: Present study was conducted on 50 cases in the age between two to seventy years for a period of 18 months (Nov 2016 to April 2018) in the Department of Radio-diagnosis, Konaseema Institute of Medical Sciences and Research Foundation, Amalapuram. Referred patients from Medicine, Surgery, and evaluated through detailed history,necessary physical examination and computed tomography are carried out using CT scan-GE 16slicescannerwithboth Plain and Contrast study. Results: CT with a diagnostic accuracy of 94% is a highly usefulmodality for the investigation of mediastinal masses. Conclusion: CT plays a significant role in the assessment of various mediastinal pathology, regarding diagnosis, distribution pattern and mass effect on adjacent structures.

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