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23 Cards in this Set
- Front
- Back
The anatomical location where the transition of squamous epithelium and glandular epithelium occurs |
Dentate Line? |
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Describe 2 differences in the radiation management of rectal tumors versus anal tumors |
Rectal tumors are treated with the patient prone at a dose of 5000 to 5500 Anal tumors are treated at 6000 cGy, supine because we have to treat the inguinal nodes with electrons |
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What is the Guaiac test |
It is a FOBT fecal occult blood test and it detects blood in the stool |
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What is true about Colorectal cancer |
It's a low incident in Japan and its anterior border or the lateral treatment field does not include the external iliac unless other pelvic organs are involved and 50% of Colorectal deaths are caused by local recurrences and Liver metastases and most patients present with early B stage |
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A colo rectal lesion that is less than 6 to 8 cm from the anal verge would most likely be treated with adrivent post operative radiation and chemo |
False |
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If an elevated CEA (SERUM carcinoembryonic antigen) fails to lower post surgical reception for rectal cancer this might indicate residual disease |
True |
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If a colo rectal patient has had an APR interior perenial resection for a rectal tumor then the radiation treatment field should include the... |
Internal and presacral nodes, prostate tumor bed, scar and perineum |
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What is the most common symptom for rectal cancer |
Blood in the stool |
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2 of the most important prognostic factors in Colorectal cancer are depth of penetration through the bowel and what else |
Lymph node involvement |
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Where does the US rank in incidents of this cancer |
2nd |
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What is the most commonly used staging system for colo rectal |
DUKES |
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What principal lymph node are usually involved with rectal tumors |
Internal and presacral |
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What is the most outer cover of the lower 1/3 of the rectum |
Muscularis layer |
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Patients with early stage rectal disease have a very high cure therefore adjuevent chemo is not required |
True |
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Patients with familial adenopolyposis (fap) Will eventually develop colon cancer if untreated |
True |
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What chemo agent is commonly used with radiation in adjutant treatment of GI tumors |
5FU |
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The ideal conventional radiation fields and total tumor dose for adjevent treatment of rectal cancer would include what |
PA plus opposed laterals to 4500 with a tumor boost to 5000 |
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Which nodes are the 1st station nodes for tumor of the anal canal |
Inguinal |
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At which skin dose will you see moist desquamation |
5000 |
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Name 2 techniques that decreases the radiation dose to the small bowel |
Have the patient prone and having a full bladder |
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What does a bolus do to the skin dose when added to the surface of a treatment field |
Increases |
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What is Lomotil used for ? Imodium? Pyridium? |
Diarrhea Diarrhea Cystitis |
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What is the term defined as a constant feeling of having to have a bowel movement |
Tenesmus |