Abstract
The present report describes an anomalous case of the risorius arising from the masseter tendon of an 83-year-old Japanese male used for student dissection practice. In this case, the risorius appeared to be almost of the typical type. However, one part of the risorius arose not from the fascia or skin over the masseter but directly from the masseter tendon itself. Such a situation is considered rare, since only one similar case has been reported by Eisler (1912).
