IN recent years, cross-sectional imaging has become more and more important in veterinary medicine, to aid exact diagnosis of pathology and surgical planning. Both CT and MRI are used for this purpose. Once a pathological process has been identified and diagnosed, the ability of cross-sectional imaging to reconstruct the anatomical situation in any desired image plane, and also three-dimensiona...

Sarcoidosis is a multisystem inflammatory disease of unknown etiology. The lungs and the lymphoid system are the most commonly involved organs. Extrapulmonary involvement is reported in 30% of patients, and the abdomen is the most common extrapulmonary site with a frequency of 50%-70%. Although intra-abdominal sarcoidosis is usually asymptomatic, its presence may affect the prognosis and treatm...

392 THE LANCET • Vol 363 • January 31, 2004 • www.thelancet.com Greater numbers of us are living longer than ever before. This increasing longevity will inevitably lead to a rise in the number of patients with degenerative dementias such as Alzheimer’s disease, the prevalence of which increases exponentially after the age of 65. In addition to devastating cognitive impairment, these disorders a...

Aortic infections are uncommon clinical entities, but are associated with high rates of morbidity and mortality. In this review, we focus on the cross-sectional imaging appearance of aortic infections, including aortic valve endocarditis, pyogenic aortitis, mycotic aneurysm and aortic graft infections, with an emphasis on CT, MRI and PET/CT appearance. Teaching Points • Aortic infections are as...

The cross-sectional imaging modalities provide an important diagnostic perspective in patients with inflammatory bowel disease that often has a profound influence on the therapeutic decision-making process. They can directly and noninvasively image infectious and inflammatory complications involving the bowel wall, serosa, and mesentery that can only be assessed indirectly by colonoscopy and ba...

Thymomas are the most common primary tumours of the anterior mediastinum in adults, and are composed of a mixture of lymphocytes and epithelial cells in varying proportions, with scattered cystic regions of various size seen in 40% of thymomas pathologically (1). However, those that resulted in almost complete cystic transformation have been reported rarely (24). The present case report describ...

Cross-sectional imaging is considered the gold standard in diagnosing a range of diseases. However, despite its widespread use in clinical practice and research, no widely accepted method is available to reliably match cross-sectional planes in several consecutive scans. This deficiency can impede comparison between cross-sectional images and ultimately lead to misdiagnosis. Here, we propose an...

The American Academy of Oral and Maxillofacial Radiology (AAOMR) has reviewed the implant imaging literature and issues this position paper for preoperative assessment of the dental implant site. The history of dental implant radiology and basic imaging principles are reviewed. An overview is presented of anatomically salient features in the maxilla and mandible germane to implant imaging, spec...

This study sets the objective to involve undergraduate students in the evaluation of radiologic sciences and medical imaging technology programmes in Sudanese universities. Based on the analysis of survey results in which the participants (BSc students undertaking radiologic sciences and medical imaging technology programmes at university level) are asked to answer both closed and open-ended qu...

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