Cervical cancer Flashcards
Intact cervix EBRT constraint
Bowel V45:
soft constraint V45</= 200 cc
hard constraint V45 < 250 cc
Intact cervix EBRT constraint
Bladder:
soft constraint: V45 < 50%
Hard constrain: Dmax < 57.5 Gy
Intact cervix EBRT constraint
Rectum:
Soft constraint: V45 < 50%
Hard constraint: Dmax < 57.5 Gy
Intact cervix EBRT constraint
Femoral heads
Hard constraint: Dmax < 55Gy
Intact cervix EBRT constraint
Kidney
Soft constraint: Dmean < 10 Gy
Hard constraint: Dmean < 15 Gy
Intact cervix EBRT constraint
Duodenum
Soft constraint: V55 < 5 cc
Hard constraint: V55 < 15 cc
Cumulative brachy constraint
Rectum
Ideal: < 65 D2cc
Max: < 75 D2cc
Cumulative brachy constraint
Bladder
Ideal: 75 - 80 D2cc
Max: < 90 D2cc
Cumulative brachy constraint
Vagina
Ideal: < 65 point dose
Max: < 75 point dose
Cumulative brachy constraint
Sigmoid
Ideal: < 70 D2cc
Max: < 75 D2cc
Cumulative brachy constraint
Bowel
Ideal: < 70 D2 cc
Max: < 75 D2cc
Cervical HDR prescription
Goal EQD2 D90 > 90 Gy to tumor, 85 is acceptable, 28 in 4 implants after 45 Gy EBRT
Cervical Staging: Diagnosed by microscopy - DOI </= 5mm
Stage IA
IA1: invasion </= 3 mm
IA2: invastion > 3 but </= 5 mm
Cervical Staging: Limited to cervix, DOI >5 mm, up to 2 cm in greatest dimension
Stage IB1
Cervical Staging: Limited to cervix, DOI >5 mm, > 2 cm but >/= 4 cm in greatest dimension
Stage IB2
Cervical Staging: Limited to cervix, DOI >5 mm, > 4 cm in greatest dimension
Stage IB3
Cervical Staging: Extends beyond cervix, but limited to upper 2/3 of vagina, </= 4 cm in greatest dimension
Stage IIA1
Cervical Staging: Extends beyond cervix, but limited to upper 2/3 of vagina, > 4 cm in greatest dimension
Stage IIA2
Cervical Staging: Extends beyond cervix, but limited to upper 2/3 of vagina and parametrial invasion without pelvic wall involvement
Stage IIB
Cervical Staging: Involves lower 1/3 of vagina
Stage IIIA
Cervical Staging: extends to pelvic wall/hydronephrosis/nonfunctioning kidney
Stage IIIB
Cervical Staging: pelvic lymph node involvement
IIIC1
Cervical Staging: P-A lymph node involvement
IIIC2
Cervical Staging: Biopsy proven spread to rectum or bladder
Stage IVA