A staging system was developed at Brigham and Women's Hospital (BWH) for cutaneous squamous cell carcinoma.
Parameters:
(1) tumor diameter in cm
(2) histologic differentiated
(3) perineural invasion
(4) tumor invasion
|
Parameter |
Findings |
Points |
|
tumor diameter |
< 2 cm |
0 |
|
|
>= 2 cm |
1 |
|
histologic differentiation |
well or moderately differentiated |
0 |
|
|
poorly-differentiated |
1 |
|
perineural invasion |
none |
0 |
|
|
< 0.1 mm |
0 |
|
|
>= 0.1 mm |
1 |
|
tumor invasion |
skin or subcutaneous fat |
0 |
|
|
beyond fat |
1 |
number of risk factors =
= SUM(points for all 4 paraemters)
|
Number of Risk Factors |
Bone Invasion |
Stage |
|
0 |
no |
T1 |
|
1 |
no |
T2a |
|
2 or 3 |
no |
T2b |
|
4 |
no |
T3 |
|
NA |
yes |
T3 |
Specialty: Hematology Oncology, Surgery, general, Dermatology
