An unusual cause of a superior mediastinal mass in an infant.

Tuberculosis has not been reported to be a cause of mediastinal masses in previous case series of mediastinal masses in children. We report the case of a 7-month-old infant with a superior mediastinal mass extending into the right chest, who was referred to the paediatric surgical team for biopsy and further management. Clinical and radiological findings were suggestive of a malignancy. However, thoracoscopic biopsy revealed the presence of a tuberculous mass.