Lab 1 - 4 Field Pelvis Flashcards
what is the most common neoplasm in men in the US?
Prostate cancer
prostate cancer occurs most often in men over _____ years of age
60
Prostate cancer accounts for over _____ of all cancers
20%
(white or black) men have the highest risk of prostate cancer in the world.
black
what is the most common histology of prostate cancer
adenocarcinoma
what is the best screening tool used for prostate cancer
PSA (prostate specific antigen)
______ s an antigen found in seminal vesicle fluid and plasma which is produced by benign and malignant tumors.
PSA
where is the prostate in relation to the pubic symphysis?
anterior
superior to the prostate are the ________ &______
seminal vesicles and the bladder
the rectum is ______ to the prostate
posterior
what are the five lobes of the prostate?
anterior, posterior, medial, and two lateral lobes
what is the most common metastatic site of prostate cancer?
bone
what are the routes of spread of prostate cancer?
local invasion, blood, and lymphatics
what are the sites of local invasion of prostate cancer?
periprostatic tissue, seminal vesicles, bladder, and/or ureters
what are the first lymph node areas of spread for prostate cancer?
periprostatic and obturator lymph nodes
TURP
transurethreal resection of the prostate
what are some symptoms of prostate cancer?
decreased urinary stream, frequency, difficulty in starting urination, dysuria, and infrequently even hematuria.
what all is included in the four field technique?
e prostate gland, seminal vesicles, and the periprostatic tissue, with or without the regional lymph nodes
TD5/5: femoral heads
5,200 cGy
TD5/5: rectum
6,000 cGy
TD5/5: bladder
6,500 cGy
TD5/5: small bowel
4,000 cGy
what is the prescription for primary disease?
45000 cGy at 180 cGy per treatment (25 fx) with boost to 6600cGy at 180 or 200cGy per treatment for tumors limited to the prostate
