The gamut of primary retroperitoneal masses: multimodality evaluation with pathologic correlation.

The retroperitoneum is a large space where primary and metastatic tumors grow silently before clinical signs appear. Neoplastic retroperitoneal diseases may be solid or cystic, primary or secondary and range from benign to aggressive in behavior. Retroperitoneal neoplasms are notable for their widely disparate histologies.

Acquired constricting and restricting lesions of the descending duodenum.

The descending duodenum is a structure with distinct pathologic processes and anatomic relationships that requires a systematic approach to the differential diagnosis. Because of its tubular shape and fixed position in the retroperitoneum, both intrinsic duodenal and juxtaduodenal diseases are capable of producing luminal narrowing and obstruction. Duodenal lesions may be located in the mucosa or submucosa.

MDCT Imaging Findings of Liver Cirrhosis: Spectrum of Hepatic and Extrahepatic Abdominal Complications.

Hepatic cirrhosis is the clinical and pathologic result of a multifactorial chronic liver injury. It is well known that cirrhosis is the origin of multiple extrahepatic abdominal complications and a markedly increased risk of hepatocellular carcinoma (HCC). This tumor is the sixth most common malignancy worldwide and the third most common cause of cancer related death.

Genitourinary imaging: part 1, congenital urinary anomalies and their management.

Objective: Congenital urinary anomalies may be symptomatic or encountered during imaging for other clinical indications. The array of abnormalities is related to the embryologic stage at the time of the developmental insult, and these abnormalities result in a spectrum of conditions ranging from insignificant to incompatible with life.

Conclusion: Understanding the implications of common congenital urinary anomalies is the key to detecting associated anomalies, initiating therapy, and avoiding both complications and unnecessary intervention.

Blunt traumatic injuries of the lung parenchyma, pleura, thoracic wall, and intrathoracic airways: multidetector computer tomography imaging findings.

This pictorial review discusses multi-detector computed tomography (MDCT) cases of non-vascular traumatic chest injuries, with a brief clinical and epidemiological background of each of the pathology. The purpose of this review is to familiarize the reader with common and rare imaging patterns of chest trauma and substantiate the advantages of MDCT as a screening and comprehensive technique for the evaluation of these patients. Images from a level 1 trauma center were reviewed to illustrate these pathologies.