Lab # 3 Cervix Flashcards
Treatment to the pelvic area is mostly intended for
_______ purposes
curative
The________ has decreased the need for radiation treatment to the pelvis for invasive carcinoma, and surgical procedures can be used for early stage cervical cancers
Papanicolaou (PAP) smear
Cancer of the cervix is the _ ____most common malignancy in women worldwide.
third
_________ has been identified as a major risk factor for cervical cancer.
Chronic Human PapillomaVirus infection (HPV
Treatment of invasive carcinoma of the cervix can be treated with ________________ as well as ______________.
external beam radiotherapy
internal brachytherapy.
the uterus is _______ to the bladder
posterior
the uterus is ______ to the rectum
anterior
what are the three parts of the unterus?
fundus superior, corpus body, and cervix interior
what is the most common pathology of cervical cancer?
squamous cell carcinoma
The three most commonly involved group of nodes include the following:
obturator, internal iliac, and external iliac
The obturator nodes are part of the ___________
external iliac chain
the obturator nodes can be found where?
against the pelvic wall slightly superior to the acetabulum
When radiation treatment fields are designed, the _________ and _____________ must be included.
known disease and potential sites of lymphatic spread
The bladder can be localized with a contrast material called ________ administered by placing a foley catheter in the bladder via the urethra.
Cystografin
The small bowel can be localized with a contrast material called
Gastrografin.
The rectum can be localized with a rectal tube containing _____ or _________
barium or a radiopaque rectal marker.
The vagina can be localized with a ___________ or _____________.
radiopaque vaginal marker or a tampon dipped in Cystographin.
If the patient received previous brachytherapy, the vagina must be ______ during the external beam portion of radiation treatment.
blocked
what are the critical structures when treating the pelvis?
bladder rectum femoral heads bone marrow small bowel colon
what is the prescription for treating the cervix?
180 cGy/fx x 25 fx = 4500cGy
what is the TD 5/5 for the bladder?
6,500 cGy
what is the TD 5/5 for the rectum?
6,000 cGy
what is the TD 5/5 for the femoral heads?
5,200 cGy
what is the TD 5/5 for bone marrow?
2,500 cGy
what is the TD 5/5 for the small bowel?
4,000 cGy
what is the TD 5/5 for the colon?
4,500 cGy
what is the machine engery for treating the cervix?
10 MV
what is the treatment depth when treating cervix?
midplane
