"Spooning": A Subtle Sign of Limb Dystonia.

BACKGROUND

The diagnosis of dystonia can be clinically challenging due to its heterogeneous presentation; essential tremor (ET) is a more common neurological disorder, but may be mimicked by other movement disorders, including dystonia, leading to misdiagnosis.

PHENOMENOLOGY SHOWN: In three patients with hand tremor, two with prior diagnoses of ET, we present examples of "spooning" of the hands, characterized by wrist flexion and metacarpophalangeal hyperextension.

EDUCATIONAL VALUE: Subtle dystonic features such as "spooning" may be present during the evaluation of patients with tremor and aid in the diagnosis of dystonia.