An anatomical variant of palmaris longus muscle: from the historical preparation to the present day

Palmaris longus (PL) muscle is a superficial flexor of the forearm with restricted functions (its harvest or absence does not result in any functional disorder) but great clinical importance. The flattened tendon, measuring 10 cm in length and 0.6 cm in width, presented a cleft about 3.5 cm from the palmar aponeurosis. Authors wish to sincerely thank people who donated their body to science with the purpose of performing medical education and anatomical research.