A chest X-ray is performed on a 16-month-old girl with a history of recurrent coughs and colds from about 9 months of age.

A 12 1/2-year-old boy has a 6-month history of intermittent right cheek swelling, gingival ulceration, and intermittent diarrhoea. An initial blood test revealed a haemoglobin of 11.4 g%, a CRP of 17 mg/l, and a normal ESR. He underwent a biopsy of the cheek swelling, which revealed granulomatous changes.