The value of computerised axial tomography in the assessment of workers exposed to asbestos.

Nineteen men who had been exposed to asbestos for long periods were subjected to an examination of the lungs by means of computerised axial tomography (CT). Some features of asbestos-related disease are shown better on CT than on conventional roentgenograms, and occasionally features not shown at all on conventional films may be demonstrated on CT. It was concluded that CT may be useful in cases with borderline and doubtful signs on conventional films, and very occasionally in persons with long exposure who have normal conventional films.

Ultrasound and barium study in the evaluation of upper abdominal masses.

Numerous radiological procedures are now available for investigation of upper abdominal masses of uncertain aetiology; however, certain limitations and pitfalls are associated with these procedures. It is suggested that the initial use of ultrasound and barium studies would frequently provide either a definite diagnosis or lead to the next appropriate line of investigation. The importance of not omitting the barium study is stressed.

Radiological changes of reflux oesophagitis.

Early changes in reflux oesophagitis are difficult to assess on radiological criteria (Torrance, 1973). The later manifestations, particularly with stricture formation, are best assessed by barium swallow. Apart from stricture formation, marked reflux oesophagitis with coarsened folds may lead to a mistaken diagnosis of varices or carcinoma. The various radiological appearances that have been encountered are described.

Reflux oesophagitis resembling varices.

Three cases of established reflux oesophagitis resembling varices are presented. Although the condition is rare, the importance of distinguishing oesophagitis from varices is pointed out in order to avoid unnecessary arteriography and surgery.