SA Journal of Radiology - Volume 9, Issue 4, 2005
Volume 9, Issue 4, 2005
Author Savvas AndronikouSource: SA Journal of Radiology 9 (2005)More Less
Extracted from text ... 2 SA JOURNAL OF RADIOLOGY ? December 2005 EDITORIAL Bounding ahead with our Journal Savvas Andronikou MB BCh, FCRad (SA), FRCR (Lond), PhD (UCT) Department of Radiology Tygerberg Hospital University of Stellenbosch This will read more like a memo than an editorial but I guess this is the best avenue for informing our readers.We must extend our gratitude as a Society and as a professional body to Ian Duncan who served this journal as chief editor and brought it alive. I see Ian is still active in publishing, with a current paper in Paediatric Radiology. Keep up the good ..
Source: SA Journal of Radiology 9, pp 4 –7 (2005)More Less
Actinomycosis is a chronic infection caused by Gram-positive anaerobic bacteria which is found worldwide. Common features of actinomycosis infections include abscess formation, granulation, dense fibrous tissue formation, and the classical cutaneous sinuses with yellow/sulphur granular discharge. However some of the features may be nonspecific and the absence of classical features may delay the diagnosis. Since actinomycosis responds well to various antibiotic treatments, with or without surgical intervention it is worthwhile including actinomycosis infection in the differential diagnosis. <br>We present radiological findings for 4 patients presenting with different forms of thoracic and abdominopelvic actinomycosis infection, and a short review of the documented literature findings.
Author M.B.M. DennySource: SA Journal of Radiology 9, pp 8 –12 (2005)More Less
Extracted from text ... Part I - Introduction, techniques and phase assessment Video swallows, or as previously performed cine swallow studies, are valuable in the sense that they render obscure images both detectable and usually identifiable. The analogy is the animal in the game park that is invisible by virtue of its camouflage among the surrounding vegetation. A slight movement by the animal will immediately betray its presence, following which identification is usually possible. Since the act of swallowing occupies only 0.40 of a second, continuous image recording allows not only the holistic aspect of the physiological mechanism but also ensures registration of ..
Source: SA Journal of Radiology 9, pp 14 –16 (2005)More Less
Extracted from text ... Introduction Lymphoctytic interstitial pneumonitis (LIP) is an interstitial pneumonia, recently included in the radiological/histopathological classification of the interstitial pneumonias. 1, 2 Although known to be AIDSdefining in children, LIP is still thought to be unusual in HIV-positive adults. Materials and methods Between 1996 and 2003, 93 HIV-positive patients with indeterminate chest pathology at Helen Joseph Hospital, Johannesburg were subjected to diagnostic bronchoscopy. Wherever possible, biopsies were taken. The only selection criterion, was an inability to arrive at a diagnosis either clinically or radiologically. Helen Joseph Hospital admits a cross-section of the South African population, namely black, white and Asian ..
Can ulceration in carcinoma of the oesophagus be detected by 99mTc- sucralfate scan? : original articleSource: SA Journal of Radiology 9, pp 17 –20 (2005)More Less
<I>Objective.</I> To test: (i) the sensitivity and positive predictive value of tagged material in delineating ulcerations of the oesophagus in the pre- and post-treatment periods and at follow-up; and (ii) whether tagging could reduce the need for invasive endoscopic procedures in patients with carcinoma of the oesophagus. <br><I>Materials and methods.</I> Twenty-nine patients with carcinoma of the oesophagus selected for radiation therapy underwent the <sup>99m</sup>Tc sucralfate scintimaging prior to radiation therapy. Patients were asked to drink 10 ml suspension of 10 mci <sup>99m</sup>Tc sucralfate. The sequential images of the oesophagus were acquired at 2 minutes, 2 hours, 4 hours and 6 hours following ingestion. In some patients images were also acquired at 24 hours and at follow-up. The comparison was done with endoscopy as the gold standard. <br><I>Results and observations.</I> The overall positivity of the test was 83% at 4 hours (24 of 29 patients), 34% at 6 hours (10 of 29 patients) and 24% at 24 hours (7 of 29 patients). The sensitivity of the test was 85%, and the positive predictive value 50%. <br><I>Conclusion.</I> Due to low positive predictive value, this investigation cannot replace endoscopy to diagnose ulcerative disease in patients with carcinoma of the oesophagus.
Source: SA Journal of Radiology 9, pp 21 –29 (2005)More Less
Extracted from text ... 21 SA JOURNAL OF RADIOLOGY ? December 2005 Introduction A higher proportion of paediatric interstitial lung diseases can be diagnosed with high-resolution computed tomography (HRCT) scan than plain radiography, with the diagnosis being made with more confidence and higher accuracy.1 HRCT is probably easier to interpret in the child than in the adult. There is less pressure to reach a definitive diagnosis from the HRCT alone, because many entities resulting in diffuse lung disease are rare in childhood and do not require consideration. In addition, endstage fibrosis, which has nonspecific appearances, is rare. Lastly, infection is the most likely ..
Author A.K. BajwaSource: SA Journal of Radiology 9, pp 30 –31 (2005)More Less
Extracted from text ... Introduction The advent of multislice computerised tomography (CT) has resulted in a huge step in diagnostic accuracy due to better image quality, multiplanar capabilities and faster speed of the scans. Pseudolesions are not unknown in radiology or in CT imaging. However the observation of some artefacts, especially the flow-related ones, has increased with the faster scanning. Lack of familiarity with these new pseudolesions can lead to misdiagnoses. Pseudolesions The lesions described below are noted frequently during imaging. This pictorial essay aimed at highlighting them as some of these lesions still confound junior staff, especially in their early learning curve. ..
Source: SA Journal of Radiology 9, pp 32 –33 (2005)More Less
Extracted from text ... Stenosis or atresia of the posterior nasal cavity, i.e. the choanae, is the most common congenital abnormality of the nasal cavity. Stenosis is considered to be more common than atresia. Bilateral atresia is life-threatening in neonates, who are obligate nasal breathers. These patients present early with severe respiratory distress, aggravated by feeding. Other pointers to the diagnosis include the inability to pass a nasogastric tube and relief of respiratory compromise on crying. The patients with unilateral disease typically present later in life with unilateral, chronic suppurative rhinorrhoea. This form of the condition is more common but due to its ..
Author M. ModiSource: SA Journal of Radiology 9 (2005)More Less
Extracted from text ... The patient, a 44-year-old woman from Chris Hani Baragwanath Hospital, was a para 5 gravida 5 post-menopausal woman, who had breastfed her children for 2 years in total. She was not on hormone replacement therapy. The patient was being treated for a pseudotumour of the right orbit as the computed tomography (CT) scan demonstrated a large right retrobulbar mass, as well as meningeal thickening. To ascertain a primary cause for the above picture, a mammogram (MMG) was done. The MMG demonstrated extensive bilateral patchy spiculated densities with associated amorphous microcalcifications, and axillary nodes (Figs 1 and 2). Ultrasound (US) ..
Author J. SmilgSource: SA Journal of Radiology 9 (2005)More Less
Extracted from text ... 35 SA JOURNAL OF RADIOLOGY ? December 2005 According to 1999 Cancer Association of South Africa (CANSA) statistics, breast cancer is the most common cancer in South Africa among women and has overtaken the reported rates for cervical cancer. They report that the biggest increase has been in the Indian community and among black women between the ages of 30 and 50 years.1 CANSA statistics demonstrate that between 1973 and 1998 there was a 21% increase in the number of female breast cancers in South Africa - women less than 35 years old account for 2% of this increase. ..
Source: SA Journal of Radiology 9 (2005)More Less
Extracted from text ... by Savvas Andronikou Figs 1 and 2 demonstrate the contrast meal in a child with alleged 'bile-stained' vomiting. The second part of the duodenum shows a loop to the right of the spine prior to crossing to the left of the spine, suggesting malrotation. A falsepositive diagnosis was made by the reporting registrar because a normal duodeno-jejunal flexure is expected to be located to the left of the spine, behind the stomach at the level of the duodenal bulb. The above images are consistent with a duodenum inversum or a duodenum reflexum. 1 This subtle variation of normal demonstrates ..