How many centimeters is kidney cancer in the early stage?

Written by Zou De Bo
Urology
Updated on September 03, 2024
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Generally speaking, kidney cancers smaller than 4 centimeters are usually considered early stage, but it still depends on individual circumstances, such as whether the tumor has spread or metastasized, and the malignancy level of the tumor cells. Thus, assessing whether it is early or advanced stage requires consideration of these specific factors, and it cannot be simply determined by size alone.

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Written by Zou De Bo
Urology
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Post-nephrectomy care for renal cancer

Postoperative care measures for kidney cancer primarily include observing the patient's vital signs. After a radical nephrectomy for a large renal tumor, a significant amount of tissue is removed including the kidney, surrounding adrenal fat, and lymph nodes at the renal hilum, which results in larger surgical wounds and potentially more bleeding. Therefore, it is crucial to closely monitor for signs of bleeding and ensure that transfusions and fluid administrations are unobstructed. Secondly, careful observation and management of the wound drainage tubes are required. Thirdly, for radical nephrectomies, once the patient is past the anesthesia phase and the blood pressure is stable, a semi-reclined position can be adopted. Patients who have undergone partial nephrectomy should remain in bed for one to two weeks to prevent further bleeding, and kidney functions should be monitored. Additionally, attention should be paid to symptoms such as breath holding and difficulty in breathing. Postoperative feeding should commence once gastrointestinal function is restored; thereafter, nutrition should be enhanced to boost bodily resistance. Calming medications may be appropriately used to ease pain, facilitating movement, effective coughing, and expectoration.

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Written by Wang Jian
Urology
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Will there be metastasis after kidney cancer removal?

Currently, all malignancies tend to metastasize. Renal cancer is a common malignant tumor of the kidney in the urinary system. Generally, patients might not exhibit any symptoms in the early stages. The most common symptoms are usually back pain and hematuria, and some patients are diagnosed due to an abdominal mass. The primary treatment for renal cancer is surgical intervention, which is considered the preferred method and is believed to be potentially curative. For patients with stage I, II, III, and IV renal cancer, the survival rates decrease progressively. Patients with stage I and II renal cancer should have follow-ups every three to six months for three consecutive years after surgery, and then annually. Patients with stage III and IV renal cancer should have follow-ups every three months for two years post-treatment, then monthly in the third year, and annually thereafter. Early detection of metastasis is crucial for timely treatment. Therefore, even after nephrectomy, renal cancer might recur, and regular follow-ups are essential.

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Written by Li Yuan Wei
Urology
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What are the characteristics of hematuria in renal cancer?

What we commonly refer to as kidney cancer actually includes two aspects. One is renal cell carcinoma, and the other is renal pelvis cancer or ureteral cancer. The characteristics of hematuria are different in these two types. Renal cell carcinoma, simply understood, grows inside the kidney and is not connected with urine. Only when the kidney tumor grows large enough to breach the kidney or renal pelvis will the tumor rupture and bleed, causing hematuria. This generally occurs in the middle to late stages of kidney cancer. On the other hand, renal pelvis cancer or ureteral cancer exhibits intermittent hematuria in the early stages without significant symptoms, but as it progresses to the middle and late stages, symptoms like kidney hydronephrosis and hematuria slowly appear. When diagnosing these conditions, any occurrence of hematuria must be investigated to determine the cause. Initial screening can be done using urinary system ultrasound, urinalysis, or routine urine tests. More precise methods include enhanced CT or MRI of the urinary system, which facilitate easier diagnosis.

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Written by Li Liu Sheng
Nephrology
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What are the symptoms of kidney cancer metastasis to the lungs?

Kidney cancer tumor cells are particularly prone to metastasis, with the lungs being one of the common sites for metastases. Once lung metastasis occurs in patients with kidney cancer, numerous symptoms can appear. Typical symptoms include coughing, scanty sputum, severe irritating dry cough, palpitations, chest tightness, shortness of breath, and even chest pain, as well as coughing up blood or severe hemoptysis. Therefore, patients with lung metastases from kidney cancer who exhibit these symptoms should seek medical attention promptly and undergo a lung CT scan. Additionally, patients may experience an increase in body temperature, fevers, weight loss, dizziness, anemia, and particularly fatigue. There may also be a loss of appetite and a general feeling of weakness, which should draw the patients' attention.

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Written by Xu Chun Hua
Urology
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Can you have sexual intercourse after kidney cancer removal?

After kidney cancer removal, based on an individual's physical condition, sexual activity can still be undertaken. Radical nephrectomy is also the best treatment method. During the surgery, it is often necessary to fully expose the area, first ligating the renal pedicle to prevent squeezing cancer cells into the bloodstream during surgery, while also removing the fascia and fat around the kidney, along with the lymph nodes at the hilum. After the surgery, it is also necessary to complement this with immunotherapy, such as using interferons and interleukins for immune treatment. Patients with kidney cancer can engage in appropriate sexual activities after surgery, but they should not be too strenuous, aiming not to feel tired the following day.