Pathology Quiz #17: Tumor Grading and Staging

1. A 65-year-old man is diagnosed with prostate cancer after a biopsy was performed due to an elevated prostate-specific antigen (PSA) level. The histopathological examination of the biopsy specimen reveals that the tumor closely resembles normal prostate tissue, with well-differentiated glandular structures. This tumor is most likely to be assigned which of the following grades? 

Question 1 of 4

2. A 55-year-old woman undergoes a lumpectomy for a 2 cm mass in her left breast. Histological examination of the mass shows invasive ductal carcinoma. No lymph node involvement is found, and there is no evidence of distant metastasis. According to the TNM classification system, which of the following is the most appropriate staging for this breast cancer? 

Question 2 of 4

3. During the staging of a lung cancer patient, a CT scan reveals a 4 cm primary tumor in the right lung and a single ipsilateral mediastinal lymph node involvement. There is no evidence of distant metastases. According to the TNM classification, what is the most appropriate stage for this patient's lung cancer? 

Question 3 of 4

4. A pathologist is reviewing a biopsy from a colon cancer patient. The microscopic examination reveals poorly differentiated tumor cells with high mitotic activity and significant nuclear pleomorphism. Additionally, there are areas of necrosis within the tumor. These findings are indicative of which of the following tumor grades? 

Question 4 of 4


 

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