Intra-osseous ganglion of the proximal humerus: a case report

J Orthop Surg (Hong Kong). 2007 Apr;15(1):102-5. doi: 10.1177/230949900701500123.


We report a 72-year-old woman with a type-1 intra-osseous ganglion in the proximal humerus, extending to the bone surface. We conducted a systemic review of intra-osseous ganglion cases in Japan to identify clinical features and pathogenesis of this condition. The anatomical distribution between intra-osseous ganglia without a communicating soft tissue ganglion (type 1) and those with (type 2) is different. The origins of intra-osseous ganglia vary and depend on their anatomical location. They can arise from within the bone or in the adjacent soft tissue, and can progress to a type-2 lesion in either an outside-in or inside-out fashion.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Aged
  • Bone Cysts / diagnosis*
  • Bone Cysts / pathology
  • Female
  • Humans
  • Humerus* / pathology
  • Magnetic Resonance Imaging
  • Shoulder Pain / etiology