title: Primary multifocal osseous Hodgkin's lymphoma.
abstract: BACKGROUND
  Hodgkin's disease (HD) most commonly presents with progressive painless enlargement of peripheral lymph nodes, especially around the cervical region. A few children have systemic symptoms and weight loss. At the time of diagnosis, osseous involvement is uncommon
  
  
  METHODS
  A case is described of Primary Multifocal Osseous Hodgkin's Lymphoma in a seven-year-old boy. He presented with a painful swelling in the sternum, and further investigations revealed deposits in his L1 vertebra, the left sacro-iliac joint and the right acetabulum.
  
  
  CONCLUSIONS
  The clinical, radiological and histological features of this disease can mimic other medical conditions, including Tuberculosis, making the diagnosis difficult and often leading to delays in treatment. This is a very rare condition and we believe this to be the youngest reported case in the literature.
authors.affiliation: Orthopaedic Department, Basingstoke and North Hampshire Foundation Trust, Aldermaston Road, Basingstoke, Hampshire, RG24 9NA, UK. clarelangley@hotmail.com
authors.forename: Clare R
authors.initials: CR
authors.lastname: Langley
authors.forename: Simon J W
authors.initials: SJ
authors.lastname: Garrett
authors.forename: Jill
authors.initials: J
authors.lastname: Urand
authors.forename: Janice
authors.initials: J
authors.lastname: Kohler
authors.forename: Nick M P
authors.initials: NM
authors.lastname: Clarke
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000188:drug therapy*; D002648:Child; D005500:Follow-Up Studies; D006689:Hodgkin Disease / Q000175:diagnosis* / Q000188:drug therapy*; D006801:Humans; D007150:Immunohistochemistry; D008159:Lumbar Vertebrae / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D018570:Risk Assessment; D012720:Severity of Illness Index; D013249:Sternum / Q000473:pathology; D013904:Thoracic Vertebrae / Q000473:pathology; D014057:Tomography, X-Ray Computed