title: Vitamin B12 deficiency: a case report of ongoing cutaneous hyperpigmentation.
abstract: We describe an interesting case of a man with recurrent cutaneous and hematologic manifestations of vitamin B12 deficiency. In this deficiency, the skin, central nervous system, blood, and blood-forming tissues are commonly involved. We describe an overview of vitamin B12 deficiency and the successful treatment of a patient's ongoing cutaneous hyperpigmentation.
authors.affiliation: New York College of Osteopathic Medicine, Old Westbury, USA. erderm@aol.com
authors.forename: Cindy F
authors.initials: CF
authors.lastname: Hoffman
authors.forename: Debbie M
authors.initials: DM
authors.lastname: Palmer
authors.forename: Dimitria
authors.initials: D
authors.lastname: Papadopoulos
mesh_terms: D006801:Humans; D017495:Hyperpigmentation / Q000097:blood / Q000188:drug therapy / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000188:drug therapy* / Q000209:etiology*
chemical_list: D014805:Vitamin B 12