Is the bladder cancer embryonic antigen high?

Written by Liu Liang

Oncology

Updated on September 03, 2024

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Carcinoembryonic antigen (CEA) is significantly elevated, mainly seen in gastrointestinal tumors, especially in colorectal cancers such as colon and rectal cancers, where CEA elevation is more pronounced. It can also be notably higher in patients with lung adenocarcinoma, and bladder cancer might show an increase in CEA as well. However, the increase in CEA is not necessarily consistent, and its diagnostic value for bladder cancer is limited due to low specificity and sensitivity, making it not very instructive. The definitive diagnosis of bladder cancer primarily involves cystoscopy and taking a biopsy to confirm the presence of cancer.

Other Voices

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Written by Liu Mei Fen

Medical Oncology

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What is the best medicine for bladder cancer infusion?

Bladder perfusion chemotherapy involves infusing chemotherapy drugs directly into the bladder through a catheter to control tumor growth and reduce the recurrence rate after surgery. Generally, the drugs with significant effects on bladder perfusion fall into three categories. The first category is the anthracyclines, including doxorubicin, epirubicin, and pirarubicin. The second category includes platinum-based drugs such as cisplatin, carboplatin, and oxaliplatin. The third category is vinorelbine. According to current big data research, vinorelbine bladder perfusion tends to have a lower recurrence rate. Without postoperative bladder perfusion chemotherapy, 60%-70% of patients will eventually experience recurrence. With bladder perfusion chemotherapy, the recurrence rate can be reduced to 20%-30%.

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Written by Liu Liang

Oncology

1min 7sec

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Does bladder cancer require the removal of the bladder?

Whether or not to remove the entire bladder in cases of bladder cancer depends on whether the tumor has invaded the base layer and whether there is distant metastasis. For non-muscle invasive bladder cancer, where the muscle layer is not invaded and there is no distant metastasis, typically found in stage 0 and stage 1 bladder cancer patients, there is no need for complete removal of the bladder. The standard treatment in such cases generally involves transurethral resection of the bladder tumor. If the tumor has invaded the base layer but there is no distant metastasis, termed muscle-invasive bladder cancer, patients in this category require radical cystectomy, which involves the removal of the entire bladder. If there is distant metastasis, termed metastatic bladder cancer, surgical treatment is not pursued; instead, palliative chemotherapy is the primary approach.

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Written by Chen Feng

Urology

1min 13sec

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Can urine odor be a sign of bladder cancer?

Urine with an unusual odor may be caused by bladder cancer, but the presence of an odor alone cannot be used to diagnose bladder cancer. Clinically, urine with an odor is commonly associated with urinary tract infections, as patients with such infections tend to have a higher amount of inflammatory secretions in their urine. Additionally, patients with urinary tract infections may lose some body water through sweating, leading to more concentrated urine, which can increase the odor. Bladder cancer patients are more susceptible to urinary tract infections, so they may also experience odorous urine. Clinically, bladder cancer is diagnosed through a combination of the patient's symptoms and supportive diagnostic tests. In the early stages of the disease, bladder cancer typically presents as painless hematuria (blood in the urine) that persists for an extended period. A routine urinalysis can be performed to check for elevated red blood cells in the urine. If bladder cancer is suspected, a cystoscopy can be conducted to identify any masses in the bladder and take biopsy samples for pathological examination. The presence of tumor cells in these samples generally confirms a diagnosis of bladder cancer.

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Written by Wang Shuai

Urology

52sec

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Could light bloody water on the paper after urinating be bladder cancer?

Firstly, it is not possible to determine the presence of bladder cancer in this way. If, after urinating, there is blood-tinged fluid when wiping the urinary opening with tissue, this may be considered hematuria. There are many causes of hematuria, such as urinary tract infections, or swelling, congestion, and erosion at the urinary opening, as well as kidney stones, all of which can lead to blood in the urine. Of course, tumors in the urinary system can also cause blood in the urine, but tumor-induced hematuria is often painless, and the color of the blood tends to be concentrated, making the urine appear red or like washed meat water. In such cases, it is important to promptly visit a hospital for routine urinalysis, ultrasonography, and even CT scans or cystoscopy to determine if it is bladder cancer.

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Written by Guan Hai Fang

Urology

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How is bladder cancer diagnosed?

Firstly, imaging examinations such as ultrasound can be conducted, which if reveal tumors larger than 0.5 cm can serve as an initial screening for patients; IVU (Intravenous Urography) can show larger tumors as filling defects. Cystoscopy can also be performed by inserting a cystoscope to directly examine the bladder's shape, size, etc. If it appears round, with clear boundaries and without erosion, it is generally benign; if it has a cauliflower-like or seaweed-like appearance, it is generally malignant bladder cancer. Urine tests can also be conducted; cells from tumors found in fresh urine can lead to cytological examination of urine as an initial screening. Additionally, if conditions permit, a physical examination including a bimanual examination of the bladder can be done to preliminarily assess the tumor's size, the extent of invasion, depth, and its relationship with the pelvic wall.