title: Vitamin B12 deficiency presenting as pyrexia.
abstract: Vitamin B12 deficiency is an uncommon cause of pyrexia. We report the case of a patient who presented with pyrexia and anaemia, which after exclusion of infective, inflammatory or endocrine causes was attributed to megaloblastic anaemia secondary to vitamin B12 deficiency. The patient's fever responded to treatment of vitamin B12 deficiency.
authors.affiliation: Department of Medicine, Indira Gandhi Medical College, Shimla-171001, Himachal Pradesh.
authors.forename: R C
authors.initials: RC
authors.lastname: Negi
authors.forename: J
authors.initials: J
authors.lastname: Kumar
authors.forename: V
authors.initials: V
authors.lastname: Kumar
authors.forename: K
authors.initials: K
authors.lastname: Singh
authors.forename: V
authors.initials: V
authors.lastname: Bharti
authors.forename: D
authors.initials: D
authors.lastname: Gupta
authors.forename: R
authors.initials: R
authors.lastname: Kashyap
authors.forename: S
authors.initials: S
authors.lastname: Raina
mesh_terms: D000293:Adolescent; D000749:Anemia, Megaloblastic / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D003937:Diagnosis, Differential; D005334:Fever / Q000209:etiology*; D006801:Humans; D008297:Male; D016896:Treatment Outcome; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy
chemical_list: D014805:Vitamin B 12