title: Stage IV sporadic Burkitt's leukaemia with osteolysis in the maxillary sinuses.
abstract: We present a case of paediatric Stage IV sporadic Burkitt's leukaemia presenting as cheek enlargement with osteolysis of the maxilla. An 8-year-old boy was referred to our department with diffuse swelling of both cheeks. Head and neck examination revealed bilateral diffuse nontender swelling, non-fluctuant but slightly compressible. Computed tomography imaging showed enhancing bilateral bulky lesions expanding the maxillary sinuses, with associated osteolysis in the posterior walls of both sinuses. Laboratory results included blast cells in the peripheral blood, suggesting a haematopoietic tumour. We referred the patient to the Department of Paediatric Haematology and Oncology. Additional examinations eventually led to the diagnosis of Stage IV sporadic Burkitt's leukaemia.
authors.affiliation: Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan pz9p8uh2@s.okayama-u.ac.jp.
authors.forename: Yohsuke
authors.initials: Y
authors.lastname: Yoshioka
authors.affiliation: Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Hospital, Okayama, Japan.
authors.forename: Eiki
authors.initials: E
authors.lastname: Yamachika
authors.affiliation: Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
authors.forename: Masakazu
authors.initials: M
authors.lastname: Matsubara
authors.affiliation: Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
authors.forename: Seiji
authors.initials: S
authors.lastname: Iida