Role of MRI in the evaluation of acute pyelonephritis in a high-risk population with renal dysfunction: a prospective study.

Aims: This study aims to evaluate the (a) accuracy of conventional and diffusion-weighted-imaging (DWI) sequences in the diagnosis of acute pyelonephritis and (b) minimum apparent diffusion coefficient (ADC) values for the diagnosis of acute pyelonephritis and the differentiation of renal abscesses from acute pyelonephritis.

Materials And Methods: Ultrasound, conventional MRI sequences, and DWI were used to evaluate the kidneys in 68 patients suspected to have acute pyelonephritis. Multiple similar regions of interest (ROIs) were placed over the renal parenchyma with visually identifiable diffusion restriction, over the non-diffusion-restricted renal parenchyma of affected kidneys and over the normal kidneys.

MRI findings in tubercular radiculomyelitis.

This article aims to familiarize the reader with the MR imaging findings of tubercular radiculomyelitis (TBRM) and to identify the sources of infection. We evaluated 29 patients on a 1.5 T GE MRI in a cross-sectional study.

MR urogram findings and diffusion restriction in the renal papilla and calyx in papillary necrosis-a new finding: preliminary report.

Renal papillary necrosis is a clinicopathological entity where any or all of the papillae undergo selective necrosis, which can be demonstrated either radiologically or histologically. The most important causes are diabetes, pyelonephritis, obstructive uropathy, tuberculosis, analgesic abuse or overuse, sickle cell disease and renal vein thrombosis. Although this condition was first described in the 19th century the clinical diagnosis of this condition remains a problem to this day.

Afferent loop syndrome in a patient having incomplete annular pancreas.

Afferent loop syndrome is a rare complication following a Billroth II procedure and is seen in 3/1000 cases. This case report shows the importance of radiological imaging in a patient with a past history of abdominal surgery, for which no records were available. Imaging showed incomplete annular pancreas, leading to narrowing of the second part of the duodenum, which was the indication for gastrojejunostomy in the past, now presenting with features of afferent loop syndrome.

A case report of racemose pattern of intracranial tuberculoma with brain stem and hypophyseal involvement developing paradoxically during treatment.

Tuberculosis involving the central nervous system, a source of considerable morbidity and mortality, forms 5-10% of the disease burden associated with tuberculosis. Central nervous system tuberculosis may present as meningitis, tuberculoma, abscesses, cerebritis or miliary tuberculosis. The most common site of tuberculoma has been reported to be at the grey-white matter junction and the periventricular region.

Multifocal Tumefactive Demyelination Mimicking Intracranial Neoplasm.

Demyelinating disease presenting with clinical and radiologic features similar to a brain tumour is referred to as tumefactive demyelination. These lesions pose considerable diagnostic uncertainty. This is partly due to the atypical neurologic symptoms that the patient can present with as a consequence of the size, location, and potential for associated mass effect and oedema.

Quantitation of change in the medullary compartment in renal allograft by ultrasound.

Twenty-three renal allograft recipients with uncomplicated post-transplant courses were sonographically evaluated on the 3rd, 10th, 30th, and 90th post-operative day. The cortical thickness (CT), pyramidal length (PL), pyramidal width (PW), corticomedullary ratio (CMR), and medullary pyramidal index (MPI) were determined at each examination. The measurements obtained from the donor before implantation were used as the baseline.