Accessory Soleus Muscle

Palmer WE, Kuong SJ, Elmadbouh HM (1999) MR imaging of myotendinous strain. AJR Am J Roentgenol 173 703-709 Paul M A, Imanse J, Golding RP (1991) Accessory soleus muscle mimicking a soft tissue tumor a report of 2 patients. Acta Orthop Scand 62 609-611... 

Pillen S, Scholten RR, Zwarts MJ et al (2003) Quantitative skeletal muscle ultrasonography in children with suspected neuromuscular disease. Muscle Nerve 27 699-705 Pla ME, Dillingham TR, Spellman NT et al (1996) Painfiil legs and moving toes associated with tarsal tunnel syndrome and accessory soleus muscle. Mov Disord 11 82-86... 

Yu JS, Resnick D (1994) MR imaging of the accessory soleus muscle appearance in six patients and review of the literature. Skeletal Radiol 23 525-538 Yu JS, Witte D, Resnick D et al (1994) Ossification of the Achilles tendon imaging abnormalities in 12 patients. Skeletal Radiol 23 127-131... 

Fig. I5.I0a,b. Accessory soleus muscle (type 1). a Longitudinal extended field-of-view 12-5 MHz US image over the Achilles tendon (arrowheads) reveals the aberrant soleus muscle (arrows) inserting into the deep surface of the tendon. The muscle ends in proximity to the calcaneus and occupies a large part of Kager s space, b Axial CT scan confirms the presence of an accessory muscle (arrows) located between the distal Achilles tendon (At) and the flexor hallucis longus muscle (FHL)...

Bianchi S, Abdelwahab IF, Oliveri M et al (1995b) Sonographic diagnosis of accessory soleus muscle mimicking a soft tissue tumor. J Ultrasound Med 14 707-709... 

Soft-tissue masses in the ankle are uncommon (OzDEMiR et al. 1997). They may he asymptomatic or may cause disturbances, such as pain, weakness, swelling, joint impairment or tarsal tunnel syndrome. With US, the diagnosis of a solid or complex mass versus a cystic mass can reliably be performed in the soft tissue of the ankle. The US characteristics of many masses that arise around the ankle joint are reported in the General Section of this book. However, the specific features of some of them, including ganglia, neurogenic tumors and abscesses, warrant additional brief discussion here. Accessory muscles (peroneus quartus, flexor digitorumlongus accessorius, accessory soleus) have already been described in previous sections of this chapter. 

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