SA Journal of Radiology - Volume 12, Issue 4, 2008
Volume 12, Issue 4, 2008
Source: SA Journal of Radiology 12 (2008)More Less
Neuropsychiatric disorders account for the second-largest proportion of the burden of disease in South Africa. This fact places South African clinical and research neuroscientists in an often unique position to explore critical questions that are of international relevance. The use of high field strength MRI, a particularly versatile imaging tool, was conceptualised to address the lack of opportunity and capacity to do this kind of work in the South African context. As such, a multi-modality brain imaging initiative in the Western Cape, with MRI at the centre, evolved in 2007 to create a world-class imaging research and training environment.
Histo-pathological correlation of BI-RADS 4 lesions on mammography with emphasis on microcalcification patterns : original articleSource: SA Journal of Radiology 12, pp 84 –92 (2008)More Less
A retrospective study of 20 patients with breast imaging reporting and data system (BI-RADS) 4 lesions, who underwent biopsy, was undertaken and a comparison with histological analyses was performed to compare the radiological appearance of benign and malignant microcalcification patterns with the final histology reports.
The results showed that although the study was not statistically significant owing to an insufficient study population, interesting trends developed which suggest that there are deficiencies in the evaluation of microcalcifications using the BI-RADS, as some lesions that were thought to have benign calcification patterns were actually malignant, and vice versa. It is hoped that further study in this field will highlight problematic areas in the evaluation of microcalcifications.
Source: SA Journal of Radiology 12, pp 93 –94 (2008)More Less
Diffuse signal changes in the liver on magnetic resonance imaging (MRI) often represent a depositional process with a decreased signal when iron or copper is deposited or an increased signal with fatty deposition. Such findings are often incidental when imaging is done to identify a cause for other symptoms or to assess for complications of primary pathology.
Source: SA Journal of Radiology 12, pp 95 –96 (2008)More Less
We report the case of a 31-year-old man with chronic pancreatitis and haematemesis secondary to a gastroduodenal artery pseudoaneurysm. No evidence-based guidelines exist regarding the optimal treatment modality for this condition. In referring to this case, we emphasise the value of coeliac arteriography for confirmation and transcatheter embolisation.
Unusual mammography findings in patients with ductal carcinoma in situ (DCIS) of the breast : case seriesSource: SA Journal of Radiology 12, pp 97 –99 (2008)More Less
The early detection of carcinoma is the high point of mammography. We present 2 patients with pathological diagnoses of DCIS with unusual mammographic findings for which one needs to have a higher index of suspicion. The first patient presented with multifocal disease requiring biopsy of all visible lesions, and the second patient (a young woman) presented with segmental distribution of calcifications, which might have been missed had a single-view baseline mammogram not been done.
Source: SA Journal of Radiology 12, pp 100 –102 (2008)More Less
Appendicitis is one of the most common causes of abdominal pain requiring surgery. Early diagnosis and management are essential to reduce morbidity and mortality. Imaging is valuable in the diagnosis of cases that are clinically atypical. Imaging also allows evaluation of the complications of appendicitis, which include perforation, peri-appendiceal abscess formation and portal pyaemia. In certain circumstances, conservative treatment of complicated appendicitis with percutaneous drainage is appropriate.