Figure 10. Over 100 ml of caseous material was aspirated from a subcostal swelling of a 35-year-old woman in whom a preliminary ultrasound examination suggested an amoebic liver abscess. Past tuberculosis of the ribs on the right side of the chest however suggested the probability of resurgent infection. (a) Axial and (b) parasagittal reformatted images show an encapsulated collection tracking along the inner surface of the thoracic cage up to the costal margin. The liver though displaced appears otherwise normal.