Accepted 16 February 2018 DesCripTion A 2-month-old full-term male infant presented with worsening tachypnoea and a rapidly enlarging, smooth-topped, infiltrative, bronze-yellow nodule with overlying telangiectasias on the mid-sternum (figure 1A). CT imaging demonstrated multiple pulmonary nodules, and enhancing extradural masses compressing the L4–L5 vertebral neural foramina. Immunohistochemi...