Related Experiment Video
Updated: Jun 19, 2026

Portable Thermographic Screening for Detection of Acute Wallenberg's Syndrome
Published on: September 19, 2019
Lhermitte's sign and vitamin B12 deficiency: case report
Hélio Afonso Ghizoni Teive1, Salo Haratz, Jorge Zavala
1Neurology Service , Department of Internal Medicine, Hospital das Clínicas, Universidade Federal do Paraná (UFPR), Paraná, Brazil. hagteive@mps.com.br
Context And Objective:
Lhermitte's sign, a classical neurological sign, is a rare manifestation of vitamin B12 deficiency. The aim here was to report on a case of an elderly patient with vitamin B12 deficiency whose first clinical manifestation was the presence of Lhermitte's sign.
Case Report:
We describe an elderly patient with vitamin B12 deficiency who presented cognitive dysfunction, peripheral polyneuropathy and sensory ataxia, and whose first clinical manifestation was the presence of Lhermitte's sign. This sign is one of the rarest manifestations of vitamin B12 deficiency.
More Related Videos
10:46A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
08:40Positron Emission Tomography Imaging for In Vivo Measuring of Myelin Content in the Lysolecithin Rat Model of Multiple Sclerosis
Published on: February 28, 2021
Related Concept Videos
Vitamins
Multiple Sclerosis l: Introduction
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
Connective Tissue Cell Types
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Bacterial Meningitis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis