An anomalous case of the risorius arising from the masseter tendon.
Sekine
J
J
Hamada
N
N
Toh
H
H
Ohmori
T
T
D000368:Aged; D000369:Aged, 80 and over; D005152:Facial Muscles / Q000002:abnormalities* / Q000033:anatomy & histology; D006801:Humans; D008297:Male; D008406:Masseter Muscle / Q000033:anatomy & histology; D013710:Tendons / Q000033:anatomy & histology*