title: Bone marrow necrosis preceding infantile acute lymphoblastic leukaemia.
abstract: We report a case of bone marrow necrosis preceding infantile acute lymphoblastic leukaemia (ALL). Bone marrow necrosis is a rare antemortem event and has been known to be present in many conditions, notably in haematological malignancies like acute lymphoblastic leukaemia. This case was a 6-month-old Chinese boy who was referred to Hospital Universiti Kebangsaan Malaysia for further investigation of pancytopaenia, high-grade fever, bloody diarrhoea and petechial rashes for one week. His first bone marrow aspirate revealed bone marrow necrosis. His clinical condition improved after ten days. However, his full blood picture then revealed the presence of 5% blast cells. His subsequent marrow 2 weeks later revealed acute lymphoblastic leukaemia (FAB-L1) and immunophenotyping showed precursor B acute lymphoblastic leukaemia-null type. He was started on United Kingdom Acute Lymphoblastic leukaemia (UK ALL) Infantile Leukaemia protocol, however, he defaulted treatment after 3 days. Mode of presentation, mechanism of disease and laboratory investigations and outline of treatment will be discussed.
authors.affiliation: Department of Pathology, Faculty of Medicine & Health Sciences, University Putra Malaysia, Selangor, Malaysia.
authors.forename: Rahayu Mohd Tohit
authors.initials: RM
authors.lastname: Eusni
authors.forename: Noor
authors.initials: N
authors.lastname: Hamidah Hussin
authors.forename: Abd Latiff
authors.initials: AL
authors.lastname: Zarina
authors.forename: Jamal
authors.initials: J
authors.lastname: Rahman
mesh_terms: D001855:Bone Marrow Diseases / Q000150:complications* / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D007223:Infant; D008297:Male; D009336:Necrosis; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000150:complications* / Q000473:pathology* / Q000503:physiopathology