Table 5.
Low-Risk | High-Risk | |
---|---|---|
BCC | ||
Location/size | L < 20 mm M < 10 mm |
L > 20 mm M ≥ 10 mm H |
Borders | Well Defined | Poorly Defined |
Primary vs. Recurrent | Primary | Recurrent |
Immunosuppression | (−) | (+) |
Site of Prior RT | (−) | (+) |
Pathology Subtype Perineural Involvement |
Nodular Superficial (−) |
Aggressive Growth Pattern (+) |
SCC | ||
Location/size | L < 20 mm M < 10 mm |
L > 20 mm M ≥ 10 mm H |
Borders | Well Defined | Poorly Defined |
Primary vs. Recurrent | Primary | Recurrent |
Immunosuppression | (−) | (+) |
Site of Prior RT or Chronic Inflammatory Process | (−) | (+) |
Rapidly Growing Tumor | (−) | (+) |
Neurologic Symptoms | (−) | (+) |
Pathology Degree of Differentiation Adenoid, Adenosquamous, Desmoplastic, Metaplastic |
Well or Moderately Differentiated (−) |
Poorly Differentiated (+) |
Depth, Thickness or Clark Level | <2 mm or I, II, III | ≥2 mm or IV, V |
Perineural, Lymphatic, or Vascular Involvement | (−) | (+) |