To cite: Rajwani KM, Desai K, Lew-Gor S. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013202737 DESCRIPTION Pott’s puffy tumour is a surgical emergency and an extremely rare complication of frontal sinusitis. It is characterised by osteomyelitis of the frontal bone with an associated subperiosteal abscess. A 61-year-old man presented to the emergency departmen...