Lhermitte's sign and vitamin B12 deficiency: case report.
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.


METHODS
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.
Teive
Hélio Afonso Ghizoni
HA
Neurology Service , Department of Internal Medicine, Hospital das Clínicas, Universidade Federal do Paraná (UFPR), Paraná, Brazil. hagteive@mps.com.br
Haratz
Salo
S
Zavala
Jorge
J
Munhoz
Renato Puppi
RP
Scola
Rosana Hermínia
RH
Werneck
Lineu César
LC
D000368:Aged; D006801:Humans; D008297:Male; D010292:Paresthesia / Q000175:diagnosis / Q000209:etiology*; D014806:Vitamin B 12 Deficiency / Q000150:complications*