title: A rare case of paediatric histiocytic sarcoma of the maxilla and mandible.
abstract: Histiocytic sarcoma is an extremely rare malignant neoplastic proliferation of the haematopoietic cells. Very few cases have been reported in the paediatric age group. Imaging features have been rarely described in the literature. It can involve any region of the body; however, it most commonly involves the lymph nodes. Its imaging appearance can mimic lymphoproliferative disorders; however, with the advent of new immunohistochemical markers, the diagnosis of HS has become more reliable. We report an unusual case of primary bone involvement by HS with multiple lesions in the facial bones of a 2-year-old female who presented with tooth and mandibular tenderness.
authors.affiliation: 1 Royal Stoke University Hospital, Stoke-on-Trent, UK.
authors.forename: Vishal
authors.initials: V
authors.lastname: Bhalla
authors.affiliation: 1 Royal Stoke University Hospital, Stoke-on-Trent, UK.
authors.forename: Nadir
authors.initials: N
authors.lastname: Khan
authors.affiliation: 1 Royal Stoke University Hospital, Stoke-on-Trent, UK.
authors.forename: Mary
authors.initials: M
authors.lastname: Jones
authors.affiliation: 1 Royal Stoke University Hospital, Stoke-on-Trent, UK.
authors.forename: Aswath
authors.initials: A
authors.lastname: Kumar
authors.affiliation: 1 Royal Stoke University Hospital, Stoke-on-Trent, UK.
authors.forename: Besim
authors.initials: B
authors.lastname: Latifaj
authors.affiliation: 2 Birmingham Childrens Hospital, Birmingham, UK.
authors.forename: Isabel
authors.initials: I
authors.lastname: Colmenero
authors.affiliation: 2 Birmingham Childrens Hospital, Birmingham, UK.
authors.forename: Ina
authors.initials: I
authors.lastname: Nicklaus-Wollenteit
keywords: mandible; paediatric; tumour