Yosipovitch, "Flexor digitorum accessorius longus," Clinical Orthopaedics and Related Research, no.
Vega, "Flexor digitorum accessorius longus: importance of posterior ankle endoscopy," Case Reports in Orthopedics, vol.
Psoas accessorius muscle was originating from the deep surface of left Psoas minor tendon to spread out as fleshy mass on anterior surface of Psoas major muscle (Fig.4c).
Reviewing the Literature, it is observed that, Joshi et al (2010) (1) reported the presence of Psoas accessorius in 25% cases, while in the present study it is found only in 15% cases.
The venter of the flexor digitorum accessorius
longus muscle (FDALM) originates in the leg, extending through the flexor retinaculum, and is applied to the flexor digitorum longus muscle's and/or quadratus plantae distal tendons.
A step ahead by Steinbach who in 1923, bestowed a status of an accessory muscle to it naming it as Cleidohyoideus accessorius
, defining it as a muscle attached to the clavicle and hyoid bone when omohyoid was also present in its typical form8.
A New Variation of Abductor Digiti Minimi Accessorius
Magnetic resonance imaging of anomalous leg muscles: Accessory soleus, peroneus quartus and the flexor digitorum longus accessorius
. Foot Ankle, 12:109-16, 1991.