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Post by Admin on Jan 17, 2016 20:01:53 GMT
Cancer is a leading cause of death in the United States, resulting in approximately half a million deaths per year. The incidence of cancer has slowly risen over the past 3 decades. In 2009, it is estimated that approximately 770,000 men and 713,000 women were diagnosed with a new case of cancer.
In a woman suffering from the leading cause of cancer deaths, which of the following histologic findings would be found?
A. Adenomatous lesions invading the submucosa and muscularis propria B. Cyst with microscopic papillae and psammoma bodies C. Glandular differentiation or mucin production with possible bronchoalveolar spread D. Malignant cells limited to ducts and lobules with calcification present E. Preceded by koilocytotic atypia
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Post by Admin on Jan 17, 2016 20:06:18 GMT
Among both genders, lung cancer is by far the leading cause of mortality (33% for men and 23% for women). Adenocarcinoma, characterized by glandular differentiation or mucin production, is the most common type of lung cancer in women. Leading causes of cancer morbidity by sex are the following: for men, prostate (32%); for women, breast (32%). AdenocarcinomaProstateBreast A is not correct. 9% chose this. Adenocarcinoma is the most common form of colon cancer, and may invade the submucosa and muscularis propria in more advanced cases. Colon and rectal cancer rank third in mortality for both genders. AdenocarcinomaTunica submucosaMalignant tumor of colonRectal Carcinoma B is not correct. 6% chose this. Serous tumors, the most common form of ovarian cancer, are characterized by psammoma bodies and tumor cells with features of malignant neoplasia. Ovarian cancer is not a high-ranking cause of cancer mortality among women. Tumor cells, uncertain whether benign or malignant D is not correct. 18% chose this. This is the description for ductal carcinoma in situ, the most common form of breast cancer. Breast cancer is the leading cause of cancer morbidity, not mortality, among women. Carcinoma in SituBreast E is not correct. 5% chose this. Cervical cancer is thought to be caused by the human papillomavirus, which causes koilocytotic changes before progressing to cancer. Deaths from cervical cancer have drastically fallen since screening by Papanicolaou smear was introduced. Cervical cancer does not rank high as a cause of cancer mortality.
Bottom Line: Adenocarcinoma, characterized by glandular differentiation or mucin production, is the most common type of lung cancer in women.
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