Heterotopic ossification encasing a plombage cavity

An 80-year-old patient presented with a chronic right sided chest wall sinus discharging pus. The patient had undergone an ipsilateral thoracoplasty and Lucite ball plombage for the treatment of tuberculosis in 1955, and the sinus was known to communicate with a plombage cavity. Until this presentation the sinus was uncomplicated, occasionally discharging clear fluid and a conservative approach to management was adopted. At this presentation, however, the discharge was culture positive for Staphylococcus aureus . Removal of the Lucite balls …