Catatonia as an internal medicine disease: infrequent or still underdiagnosed?

Margarida Proenca, Filipa Marques, Débora Cardoso, Cândida Fonseca

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Catatonia is a motor and behavioural syndrome with multiple psychiatric, general medical and neurological aetiologies that might be simultaneously present. B12 deficiency is a rare, treatable cause of catatonia, not always easy to rule out. The authors present a case of a woman with catatonia associated with severe cyanocobalamin deficiency, admitted to an internal medicine ward. The benign course was related to an adequate and early diagnosis.

Original languageEnglish
Article number214233
JournalBMJ case reports
Publication statusPublished - 22 Apr 2016


  • Aged
  • Catatonia
  • Female
  • Humans
  • Internal Medicine
  • Vitamin B 12
  • Vitamin B 12 Deficiency
  • Case Reports
  • Journal Article


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