2012 年 25 巻 1 号 p. 13-16
A case in which the presence of nodules on muscle ultrasonography led to the diagnosis of muscular sarcoidosis is described. A 58-year-old woman was admitted to our hospital with blepharoptosis and diplopia, as well as gradually progressive leg pain. Muscle ultrasonography showed 2- to 3-mm-diameter, cystic nodules in the right tibialis anterior muscle. In the same muscle, myogenic changes were seen on needle electromyography. A muscle biopsy of the region where the nodules were detected was performed. The biopsy specimen showed noncaseating granulomas, and sarcoidosis was diagnosed. Ultrasonography is useful to identify regions to biopsy in patients with muscular sarcoidosis.