RT Journal Article SR Electronic T1 Radiological diagnostic dilemma in a child with small aggressive facial mass, time to increase the differentials: an inflammatory myofibroblastic tumour JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e235532 DO 10.1136/bcr-2020-235532 VO 13 IS 10 A1 Waleed Mohamed Samy Fawzy A1 Adeena Khan A1 Syed Shahid Habib A1 Mohammed Abdulmuhsen Alessa YR 2020 UL http://casereports.bmj.com/content/13/10/e235532.abstract AB A 5-year-old girl with left facial swelling in the medial maxillary region close to the nasal ala was brought by her parents to our head and neck clinic. They have visited other doctors for similar presentation in the last 6 months, which started as redness and swelling, with occasional epiphora. The redness resolved after medical treatment, with slight regression of swelling, although it did not disappear. CT and MRI showed a locally aggressive, small enhancing soft tissue mass involving the left anteromedial maxillary wall, the nasal bone and the orbital floor. The mass involved the bony course of the nasolacrimal duct, which was the aetiology of the epiphora. The head and neck team performed an incisional biopsy through a sublabial approach. Concurrently, a nasolacrimal duct stent was inserted by an ophthalmologist. Histopathology was consistent with inflammatory myofibroblastic tumour with positive stains for CD68, CD163 and anaplastic lymphoma kinase-1. The tumour was excised and presently the patient is on periodic follow-up with head and neck and ophthalmology clinics.