Case Report

Volume: 5 | Issue: 1 | Published: Jan 29, 2021 | Pages: 1 - 3 | DOI: 10.24911/ejmcr/173-1560272435

A case of vitamin B12 deficiency with some unusual features


Authors: Teresa Melo , Liliana Ribeiro dos Santos , Patricia Martins , Ana Paula Vilas


Article Info

Authors

Teresa Melo

Centro Hospitalar e Universitario Lisboa Norte, Lisboa, Portugal

Liliana Ribeiro dos Santos

Centro Hospitalar e Universitario Lisboa Norte, Lisboa, Portugal

Patricia Martins

Division of Medicine, University College of London, London, United Kingdom

Ana Paula Vilas

Centro Hospitalar e Universitario Lisboa Norte, Lisboa, Portugal

Publication History

Received: June 11, 2019

Revised: September 19, 2020

Accepted: September 19, 2020

Published: January 29, 2021


Abstract


Background: Vitamin B12 (VB12) deficiency is a pleomorphic disease with a wide range of manifestations. Its major cause is pernicious anemia, an autoantibody-mediated disease that results in low levels of intrinsic factor [1,2]. Case Presentation: We present a case report of a middle-aged man with severe megaloblastic anemia due to VB12 deficiency in relation to an unsuspected Crohn’s disease with exclusive ileum involvement. He also had some unusual neurological manifestations of this vitamin’s deficiency, such as hypersudoresis. Unlike most cases, the anemia was not hypoproliferative and hemolysis existed. Conclusion: This case reports some unusual aspects of VB12 deficiency and reminds us that ileum disease should be considered in patients with a negative autoimmune profile.

Keywords: Crohn’s disease, vitamin B12 deficiency, case report, weight loss, night sweats, anemia, green


Pubmed Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. A case of vitamin B12 deficiency with some unusual features. EJMCR. 2021; 29 (January 2021): 1-3. doi:10.24911/ejmcr/173-1560272435

Web Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. A case of vitamin B12 deficiency with some unusual features. https://ejmcr.com/articles/1112 [Access: December 25, 2024]. doi:10.24911/ejmcr/173-1560272435

AMA (American Medical Association) Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. A case of vitamin B12 deficiency with some unusual features. EJMCR. 2021; 29 (January 2021): 1-3. doi:10.24911/ejmcr/173-1560272435

Vancouver/ICMJE Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. A case of vitamin B12 deficiency with some unusual features. EJMCR. (2021), [cited December 25, 2024]; 29 (January 2021): 1-3. doi:10.24911/ejmcr/173-1560272435

Harvard Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas (2021) A case of vitamin B12 deficiency with some unusual features. EJMCR, 29 (January 2021): 1-3. doi:10.24911/ejmcr/173-1560272435

Chicago Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. "A case of vitamin B12 deficiency with some unusual features." 29 (2021), 1-3. doi:10.24911/ejmcr/173-1560272435

MLA (The Modern Language Association) Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas. "A case of vitamin B12 deficiency with some unusual features." 29.January 2021 (2021), 1-3. Print. doi:10.24911/ejmcr/173-1560272435

APA (American Psychological Association) Style

Teresa Melo, Liliana Ribeiro dos Santos, Patricia Martins, Ana Paula Vilas (2021) A case of vitamin B12 deficiency with some unusual features. , 29 (January 2021), 1-3. doi:10.24911/ejmcr/173-1560272435