Dystonic Tremor in Adult-onset DYT-KMT2B.

KMT2B-related dystonia (DYT28, DYT-KMT2B) is an inherited dystonia that generally begins in the lower limbs during childhood and evolves into generalized dystonia. We herein report a case of adult-onset DYT28 with dystonic tremor. A 27-year-old woman initially displayed right upper limb and cervical tremors over the course of 1 year. A neurological examination also revealed cervical and lower limb dystonia. Although the disease generally develops during childhood, we diagnosed the woman with DYT28, as genetic testing revealed a mutation in KMT2B. Adult-onset patients with DYT28 might also show uncommon symptoms as well as DYT-TOR1A (DYT1).

Citation

Rui Shimazaki, Jun Ikezawa, Ryoichi Okiyama, Kenko Azuma, Hiroyuki Akagawa, Kazushi Takahashi. Dystonic Tremor in Adult-onset DYT-KMT2B. Internal medicine (Tokyo, Japan). 2022 Aug 01;61(15):2357-2360

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PMID: 35022352

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