Acid sphingomyelinase deficiency (Niemann-Pick disease types A and B)
Aug. 11, 2022
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Hemichorea
Prominent choreiform movements are evident in the left upper and left lower extremity, more distally than proximally. Dyskinetic movements involving the left side of the face and head turning toward the left can also be discerned. (Courtesy of Dr. Sid Gilman.)