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What are the chacteristics of a benign ST tumor?
- Resemble derivative tissue
- Automous growth rate
- Local invasion rare
- Low recurrence rate
- Cystic/fluid filled
What are teh chacteristics of a malignant tumor?
- Rapid destructive growth
MRI findings of a benign tumor?
- Well defined margins
- Homogeneous signal intesity
- No N-V or bone involved
MRI findings of a malignant tumor?
- Poor margins
- Hetergeneous signal
- N-V or bone involvment
What is the difference between excision and incisional biopsy?
- Both open biopsy
- Excisional you take it all out and incisional you remove part of it and leve main mass in situ
What are our common benign tumors?
- Ganglion cyst
- Plantar Fibroma
- Usually dorsal foot or ankle
- Well circumscribed
- Close to a tendon sheath or joint
- Thickening of the plantar fascia
- Usually medial or central band
- MOST COMMON BENIGN TUMOR
- Superficial are well defined
- Deep have no margin
- Tumor of spindle cell origin
- fusiform expansion of nerve
- solitary or multiple
- associated with von Recklinghausen's disease
- Tumor of the peripheral nerve sheath
- Discrete tender nodule
- Usually affects major nerve