Pott's Puffy Tumour: a rare but sinister cause of facial swelling.

A 27 year old female presented to the emergency department with intermittent central forehead swelling over several months associated with a headache. She was admitted under the medical team as having had a suspected allergic reaction but the diagnosis of a Pott's Puffy Tumour was quickly made and confirmed through CT and MR imaging. This uncommon condition is related to sinusitis leading to localised abscess formation with osteomyelitis and a subsequent swollen appearance over the affected facial sinus. This patient's sinus abscess extended into the epidural space and caused destruction of the anterior and posterior walls of the frontal sinus. The patient was managed with intravenous antibiotics, analgesia and referral to the local ENT team for surgical intervention.