Accessory soleus muscle

Accessory Soleus Muscle

The soleus muscle (highlighted in red) and its accessory variant
Latin	Musculus soleus accessorius
Nerve	Tibial nerve

The Accessory Soleus Muscle (Musculus soleus accessorius) is a rare anatomical variant of the soleus muscle, found in the posterior compartment of the leg. It is present in approximately 0.7-5.5% of the population.

Anatomy

The Accessory Soleus Muscle typically originates from the upper third of the tibia or the fibula, and inserts into the calcaneus or Achilles tendon. It is innervated by the Tibial nerve, and its primary function is plantar flexion of the foot.

Clinical Significance

The Accessory Soleus Muscle is usually asymptomatic and discovered incidentally during imaging studies for unrelated conditions. However, it can occasionally cause pain or swelling in the ankle region, especially after exercise. This condition is known as Accessory Soleus Muscle Syndrome.

Diagnosis

Diagnosis of the Accessory Soleus Muscle is typically made through imaging studies such as MRI or Ultrasound.

Treatment

Treatment for Accessory Soleus Muscle Syndrome typically involves conservative measures such as rest, ice, compression, and elevation (RICE). In severe cases, surgical removal of the accessory muscle may be necessary.

See Also

• Soleus muscle
• Tibialis anterior muscle
• Posterior compartment of the leg

Accessory soleus muscle Resources
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