Cubital tunnel syndrome

Cubital tunnel syndrome is a type of ulnar nerve compression neuropathy which can occur from a pathological compression of the ulnar nerve at the cubital tunnel.

It is the second most common peripheral neuropathy of the upper extremity 1,3.

Ulnar nerve compression can result in altered sensation in the little and ring fingers. In many patients, sensory loss is often the first symptom to be reported. As the condition progresses, they may be clumsiness in the hand, as the ulnar nerve is the principal motor supply to the intrinsic muscles of the hand. In well‐established cases, there may be marked wasting of the small muscles of the hand and the ulnar‐sided muscles of the forearm 4.

It can arise from varying causes which include:

Exact imaging features may vary dependent on underlying cause. Thickening of the ulnar nerve can be a commonly observed feature.

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Article information

rID: 21060
Section: Syndromes
Tag: cases
Synonyms or Alternate Spellings:
  • Cubital tunnel syndrome (CTS)

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Cases and figures

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    Case 1
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    T2*
    Case 2: with an anconeus epitrochlearis muscle
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    Case 3
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