title: Atypical B12 deficiency with nonresolving paraesthesia.
abstract: Vitamin B12 deficiency can present with various hematological, gastrointestinal and neurological manifestations. We report a case of elderly female who presented with neuropathy and vitamin B12 deficiency where the final work-up revealed polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS). This case suggests that, although POEMS syndrome is a rare entity, it can present with vitamin-B12 deficiency and thus specific work up for early diagnosis of POEMS should be considered in patients with B12 deficiency unresponsive to therapy.
authors.affiliation: Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
authors.forename: S
authors.initials: S
authors.lastname: Haider
authors.affiliation: Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
authors.forename: N
authors.initials: N
authors.lastname: Ahmad
authors.affiliation: Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA ; Division of Hematology and Oncology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
authors.forename: E J
authors.initials: EJ
authors.lastname: Anaissie
authors.affiliation: Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA ; Division of Hematology and Oncology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
authors.forename: N
authors.initials: N
authors.lastname: Abdel Karim