Postoperative imaging of gastrointestinal tract cancers

Assessment in postoperative complications of gastrointestinal cancers via imaging modalities is of significant importance as diagnosing the cancer. Complications can be considered as an indicator for the success of surgical procedure, and has a vital importance for the patient. In this article the implications of CT, MR, ultrasonography and PET in these indications and their benefits are discussed. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved

Frequency of sternal variations and anomalies evaluated by MDCT

OBJECTIVE. Our objective was to reveal the frequency and MDCT appearances of sternal variations and anomalies in subjects without sternal deformities

Multidetector row CT of the kidneys

In this article, the value of multiple detector-row computed tomography (MDCT) in renal applications is discussed, with emphasis on clinical uses. The superiority of application techniques of MDCT renders it one of the most distinguished modality in detection of congenital anomalies, tumors, transplants, trauma, and arterial diseases of the kidney. (C) 2004 Elsevier Ireland Ltd. All rights reserved

Cyclic sciatica caused by infiltrative endometriosis: MRI findings

Endometriosis, an important gynecological disorder of reproductive women, affects most commonly the ovaries and less frequently the gastrointestinal tract, chest, urinary tract, and soft tissues. Endometriosis classically appears on MRI as a mass with a large cystic component and variable signal intensities on T1- and T2-weighted images due to the presence of variable degradation of hemorrhagic products. Endometriosis in an atypical location, an infiltrative appearance and without cystic-hemorrhagic components has rarely been described. We report on a 33-year-old woman with cyclic sciatica due to histologically documented infiltrative endometriosis involving the area of the left sciatic notch

CT findings of pulmonary artery aneurysms during treatment for Behcet's disease

OBJECTIVE, The purpose of this study was to evaluate the CT findings of pulmonary artery aneurysms in patients being treated for Behcet's disease

MRI of cerebral alveolar echinococcosis

Cerebral alveolar echinococcosis is rare. We report a case with multiple intracranial masses which show cauliflower-like contrast enhancement pattern on MRI. The lesions originated from hepatic involvement with invasion of the inferior vena cava

Palliation of malignant esophageal strictures with self-expanding nitinol stents: Drawbacks and complications

PURPOSE: To evaluate the usefulness of self-expanding nitinol stents in the palliative treatment of malignant dysphagia

Hepatic alveolar echinococcosis: MRI findings

The purpose of this study was to describe the magnetic resonance imaging (MRI) appearance of hepatic alveolar echinococcosis (HAE) on T-1-weighted, T-2-weighted and postgadolinium images. A total of 13 lesions were demonstrated in 13 patients. All patients underwent MR examination at 1 T imager. MR examinations included precontrast T-1-weighted breathing averaged spin echo (SE), breath-hold spoiled gradient echo, T-2-weighted TSE sequences with and without fat suppression, and T-1-weighted breath-hold spoiled gradient echo (SGE) sequence following i.v. after gadolinium administration. All lesions were confirmed with histopathology. HAE hepatic lesions revealed geographic patterns of variable signal intensities on noncontrast T-1- and T-2-weighted images. Slightly hyperintense, iso- and hypointense signal on T-1-weighted images corresponded to calcified regions, which appeared hypo-isointense signal on T-2-weighted images. Necrotic areas were hypointense signal on T-1-weighted and hyperintense signal on T-2-weighted images. On postgadolinium images, lesions did not reveal enhancement. Dilatation of intrahepatic bile ducts distal to HAE abscesses were observed in five patients and portal vein invasion or compression was observed in four patients, lobar atrophy of the liver was coexistent finding in cases with portal vein compression. The MRI appearance of HAE abscesses included large irregularly marginated masses with heterogenous signal on T-1- and T-2-weighted images and lack of enhancement with gadolinium. (C) 2000 Elsevier Science Inc. All rights reserved