Can rectal cancer be detected by ultrasound B?

Written by Gong Chun
Oncology
Updated on September 02, 2024
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Can rectal ultrasound detect it? When we perform an abdominal ultrasound for the digestive system, we might see a potential mass in the abdomen, but its specific nature cannot be clearly identified. Therefore, the definitive diagnosis of rectal cancer still relies on biopsy and pathological examination. Thus, it is recommended to go to the hospital and consult a professional oncologist for tests, such as undergoing an endoscopic biopsy or having a surgical procedure to remove and then analyze the pathology to confirm whether it is rectal cancer or not.

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Written by Gong Chun
Oncology
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Postoperative Diet and Care for Rectal Cancer

Firstly, rectal cancer is a malignant tumor of the digestive tract, so after surgery, it is recommended to eat foods that are easy to digest and absorb. Secondly, do not smoke, abstain from alcohol, and avoid spicy and irritating foods. Thirdly, it is advised not to eat indigestible foods, such as bean products and foods that cause gas, and to consume them in smaller quantities. Fourthly, rectal cancer may deplete a large amount of nutrients in the body, coupled with the damage from surgery, so it is essential to ensure a nutrition-rich diet, consume nutritious foods such as soups, easily digestible congee, and high-quality proteins to increase the body's nutrients. Fifthly, attention should be paid to timely adding clothing to avoid catching a cold.

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Written by Liu Liang
Oncology
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Does stage II rectal cancer require chemotherapy?

Whether a stage II colorectal cancer patient needs adjuvant chemotherapy after surgery depends on the specific circumstances. For example, stage IIA patients are classified as T3, N0, M0. The necessity of adjuvant chemotherapy for these patients should be determined based on the pathological report. If the report indicates the presence of vascular invasion, neural invasion, poor differentiation, or if microsatellite stability testing shows poor prognostic factors, then such patients should undergo postoperative adjuvant chemotherapy. If none of these conditions are present in a stage IIA patient, then postoperative adjuvant chemotherapy may not be necessary. Generally, stage IIB patients, whose tumors have penetrated the full thickness of the intestinal wall, are recommended to undergo postoperative adjuvant chemotherapy. Therefore, the specific conditions of the patient need to be considered.

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Written by Wu Hai Wu
Gastroenterology
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Can a colonoscopy detect colon and rectal cancer?

Colonoscopy can detect colon and rectal cancers. By conducting a colonoscopy, it can be determined whether a space-occupying lesion is in the colon or the rectum. In the workplace, it can also confirm the distance from the anus in centimeters, to guide the next steps of surgical treatment. If a colon or rectal tumor is found during colonoscopy, a pathological biopsy may be needed. Combined with the pathological biopsy, a diagnosis can be made whether the patient has colon cancer or rectal cancer. At the same time, colonoscopy can also detect other diseases, such as colon polyps, ulcerative colitis, Crohn's disease of the colon, and so on.

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Written by Liu Liang
Oncology
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Stage IV rectal cancer

In the staging of rectal cancer, we generally use the TNM staging system clinically. "T" refers to the primary tumor, "N" indicates whether there is lymph node metastasis, and staging is based on the status of the lymph nodes. "M" indicates whether there is distant metastasis. Stage IV refers to any stage of "T" and any stage of "N", as long as there is distant metastasis, such as rectal cancer metastasizing to the liver, lungs, or bones. When these distant organ metastases occur, the staging is M1, any "T", any "N", M1. This scenario is stage IV, indicating the presence of distant organ metastasis and represents advanced stage rectal cancer patients.

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Written by Liu Liang
Oncology
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Rectal cancer stage III

Rectal cancer staging is based on the TNM system. "T" refers to the primary tumor, and its stage depends on which layer of the bowel wall the tumor has invaded. "N" is based on whether there are lymph node metastases and the number of lymph nodes involved. "M" indicates whether there are metastases to distant organs. Staging is determined according to the TNM situation, where Stage I is the earliest and Stage IV is the latest. Stage III indicates lymph node metastasis without distant organ metastases, such as to the liver or lungs. In such cases, irrespective of whether T is T1 to T4, if there is lymph node involvement without distant organ metastasis, it is staged as Stage III.