Mercury intoxication presenting with tics.
A 5 year old Chinese boy presented with recurrent oral ulceration followed by motor and vocal tics. The Chinese herbal spray he used for his mouth ulcers was found to have a high mercury content. His blood mercury concentration was raised. Isolated tics as the sole presentation of mercury intoxication has not previously been reported.
Li
A M
AM
Department of Paediatrics, The Chinese University of Hong Kong, 6th Floor, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong SAR, China. Albertm68mcli@yahoo.com
Chan
M H
MH
Leung
T F
TF
Cheung
R C
RC
Lam
C W
CW
Fok
T F
TF
D002675:Child, Preschool; D004365:Drugs, Chinese Herbal / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008628:Mercury / Q000097:blood; D020262:Mercury Poisoning, Nervous System / Q000209:etiology*; D019226:Oral Ulcer / Q000188:drug therapy; D020323:Tics / Q000139:chemically induced*
D004365:Drugs, Chinese Herbal; D008628:Mercury