Ossifying Fibromyxoid Tumor
Clinical
- Age 6-83 years
- Most over 40
- Rare under 20
- Most on extremities
- Most others on trunk and head and neck
- May be intraoral
- Rare retroperitoneal cases reported
- Predominantly subcutaneous, occasionally intramuscular
- Occasionally involving skin
- Median size 4 cm, rarely >10cm
- Recurrence rate reported from 0 to 27%
- Frequently occurs late (>10 years)
- Metastatic rate reported as high as 16%
- Incidence may depend upon strictness of application of diagnostic criteria
- Metastases reported with and without recurrences
