How rare? % of all GYN cases?
Very rare, 4% of all GYN cases
Causes
HPV 16 18 31
P53 gene
Risk factors
HPV, HIV, smoking, vulvar intraepithelial neoplasia (VIN)
Symptoms
itching + tissue changes
Surgery
Laser, exicional, vulvectomy
RT borders
L5, pelvic inlets
Dose
50-60Gy Bolus used
Stage I - IV
93% & 43%