To date there have been six case studies reporting compression in Guyon's canal secondary to lipoma [1-6].
This showed no obvious deformity in Guyon's canal and no abnormality along the ulnar nerve.
The incision was extended medially and Guyon's canal was explored.
Ulnar nerve compression from lipoma in Guyon's canal is rare.
3] were the first to report the use of MRI in their work-up for compressive lipoma in Guyon's canal in 2000.
Acute compression ulnar neuropathy at Guyon's canal resulting from lipoma.