Treatment Planning

Question 1

What are the acute RT toxicities of the vulva, pelvis, and inguinal nodes?

Answer 1

• severe RT dermatitis of the vulva and groins (which results in need for treatment interruption in the majority), n/ v, diarrhea, urethritis, cystitis, and decreased blood counts.

Question 2

What are the late RT toxicities associated with the vulva and inguinal nodes?

Answer 2

• vaginal atrophy, itching and discharge, SBO, and femoral neck fracture.

Question 3

Estimate the risk of femoral neck fracture after 50 Gy.

Answer 3

• 50 Gy to the femoral neck is associated with an 11% risk of fracture at 5 yrs. (Grisby JS et al., Med Dos 2004)