True or False: From 2005 to present, breast cancer in women has been the second most common occurring cancer and the number one cause of cancer related deaths.
According to the American Cancer Society, breast cancer is the most common type of cancer and the second leading cause of cancer related deaths in women.
In which breast and what quadrant is breast cancer most prevalent?
Breast cancer is more common in the left breast and usually presents in the upper outer quadrant.
What is the most common pathology for patients with breast cancer?
Infiltrating ductal carcinoma is the most common pathology in breast cancer, and it contributes about 70%-80% of all breast cancer cases.
According to the American Cancer Society, annual mammograms for low risk women should be performed after what age?
Annual mammograms should be performed annually after the age of forty. The American Cancer Society suggests that an annual clinical breast exam and a monthly self breast exam be performed as well.
When treating breast cancer what is the most radiosensitive organ at risk?
The lung is the most radiosensitive organ when treating breast cancer.
What is the TD5/5 for 2/3 of the lung?
The TD5/5 for 2/3 of the lung is 3,000 cGy.
Name the three most common regional lymph nodes that may be of concern when treating breast cancer?
The three most common lymph nodes that may be of concern are the axillary, supra-clavicular, and internal mammary lymph nodes.
When treating a tangential breast field, what do you usually not want the medial field boarders to do?
Most of the time you don't want the medial boards to diverge.
This can be accomplished many ways. One way is with a split beam technique, where you have your medial border on central axis. Another way is to compensate for the divergence is by having your tangential field angles have a greater then 180 degree hinge angle.
Please list the four different grades of skin reactions from least to most severe.
From least severe to most server they go:
Erythema- slight redness of the skin, occurs at about 1,500 cGy-2,000 cGy.
Dry desquamation-Occurs with the destruction of the sebaceous glands, usually after 3,000 cGy, and causes itching.
Moist desquamation-occurs over 4,000 cGy and blistering may occur
Necrosis-this is cellular death.
Author: Sean Harris
Co-Author: Adam Buell
Editors: Mary Hare
Date Created: June 2005