Benign Soft Tissue Tumours
Assume all malignant until proven otherwise
1. Ganglion
Mucoid degeneration of a joint capsule or tendon sheath
- may fluctuate in size or disappear
- firm subcutaneous nodule
- may be painful, especially if compressed
ganglion
Ganglions
Epidemiology
Most common tumour of hand
F > M
2nd - 4th decade
Aetiology
Unknown
Trauma
Mucoid degeneration of collagen tissue
Synovial herniation
Location
Ganglion
Definition
Cystic structure lined by a mature capsule of dense fibrous tissue
- contains thick viscous fluid with a high mucopolysaccharide content
- fluid is a myxoid degeneration of synovial fluid
Epidemiology
Most common in young females
- peak age 15-30
- F:M = 3:1
Most common tumour in hand (2/3)
Aetiology
Unclear