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Kidney cancer
What are the early symptoms of kidney cancer?
Kidney cancer is a common malignant tumor in the urinary system. Many patients with early-stage kidney cancer do not show any symptoms clinically and are incidentally discovered during medical examinations. Many patients in the early stages may also present with painless hematuria, sometimes as gross hematuria and sometimes as microscopic hematuria. Some patients may experience pain in the kidney area due to blood clots formed after hematuria, mainly presenting as intermittent episodes of mild back pain. Additionally, some patients in the early stages might show symptoms of paraneoplastic syndrome, such as hypertension and fever, but these clinical symptoms generally occur at a very low frequency. When patients present with obvious clinical symptoms, it often indicates that the kidney cancer has metastasized, leading to a clinical presentation of mid-to-late stage kidney cancer.
Can kidney cancer that has spread to the lungs be cured?
Kidney cancer usually reaches an advanced stage by the time it metastasizes to the lungs, leading to a generally low survival rate. For early and intermediate-stage kidney cancer patients, surgical treatment is typically employed. However, in advanced stages, especially when there are lung metastases, surgical methods are often not suitable. However, if the metastatic foci are small, it is still recommended to remove them surgically. Immunotherapy can be used for lung metastases, such as using interferon or targeted therapy. Targeted therapy tends to be effective, commonly using drugs like sorafenib and sunitinib for first-line or second-line treatment of metastatic kidney cancer. Although a complete cure is not possible, these treatments can significantly prolong the patient's lifespan, improve survival rates, and alleviate symptoms.
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.
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.
Can kidney cancer patients eat eggs?
Patients with kidney cancer can eat eggs. Kidney cancer is a malignant tumor of the kidney, originating from the epithelial cells of the renal tubules. Although this disease is a malignant tumor, the patient's body still needs nutrients. Therefore, high-protein foods can be consumed by patients, and they should maintain a protein intake roughly the same as that of healthy individuals. Eggs are rich in protein, with each egg containing about seven to eight grams of protein. Kidney cancer patients can eat eggs without worsening their condition or causing the disease to spread. The folk saying that some foods are "stimulating" is not scientifically founded. Currently, there is no clear evidence in medicine to support the claim that eggs and beef are "stimulating."
What are the common symptoms of kidney cancer?
Kidney cancer is a malignant tumor of the renal parenchymal tissue. Some patients do not have specific symptoms, especially in the early stages. As the disease progresses, patients may find a mass in the abdomen. Some patients may experience back pain due to the enlargement of the kidney pressing against the renal capsule. Some patients experience bleeding due to the gradual rupture of the tumor, causing visible blood in the urine, which sometimes appears as painless throughout the blood in the urine. These symptoms may indicate the presence of a malignant tumor in the kidney, and diagnosis needs to be confirmed through ultrasound and CT scans.
What is good to eat after kidney cancer surgery?
If kidney cancer is detected early, it can be cured through surgery. Unlike some malignant tumors, kidney cancer has good treatment outcomes. If the cancer is less than four centimeters in diameter, the five-year survival rate after surgery can exceed 90%. If it is less than seven centimeters, the five-year survival rate after surgery can also reach 80%. Even if the cancer has metastasized to distant sites, removing the kidney can still help the patient's survival. Therefore, the earlier the tumor is detected, the better the treatment outcomes. Kidney cancer surgery is generally done through laparoscopy or open surgery. Postoperative diet should be high in protein, fiber, and nutrients, as the healing of the kidney cancer incision also requires a solid nutritional foundation. It is necessary to eat less spicy and stimulating food, and to maintain a low-salt, low-fat diet. The most important thing for kidney cancer is to have regular follow-ups to understand the recovery situation and check for any recurrence or metastasis of the tumor.
Is vomiting severe in renal cancer?
Patients with kidney cancer who experience vomiting are facing a serious situation because nausea and vomiting are common symptoms among late-stage cancer patients and are often more distressing than the pain from cancer itself. Nausea and vomiting may be side effects of treatment, or they might be caused by cancer invading the digestive and nervous systems. People who are ill often feel anxious, which is also one of the reasons causing vomiting. Cancer patients need to pay extra attention to their diet, as this can greatly aid their treatment. In daily life, it is beneficial to consume more fresh fruits, vegetables, whole grains, and legumes, focusing on light meals to ensure a balanced diet and supplement various nutrients.
What are the symptoms of kidney cancer?
Kidney cancer is a common tumor in urological surgery, and a typical symptom in patients with kidney cancer is the appearance of hematuria. The characteristic of this hematuria is that it is painless visible hematuria throughout the course. Initially, the severity of the hematuria is relatively mild, occurring intermittently. However, over time, the hematuria gradually worsens, and the intervals shorten, even leading to significant bleeding. Another symptom of kidney cancer is back pain, which is caused by the increased size of the tumor pulling on the kidney, causing pain. When the tumor presses, it can also lead to severe back pain. A mass is another common symptom of kidney cancer; when a mass is felt on one side of the upper abdomen or back and moves up and down with respiration, it is generally indicative of the late stages of kidney cancer. Therefore, the typical symptoms of kidney cancer are hematuria, pain, and a mass.
Is late-stage kidney cancer contagious?
Advanced kidney cancer is not contagious from person to person. Kidney cancer is when the tissues of the kidney undergo abnormal proliferation and the condition has advanced to a late stage. Generally, it is recommended that patients with kidney cancer follow a high-protein, low-salt, low-sugar diet, avoid foods that increase the metabolic burden on the kidneys, and focus on fine, refined, and soft foods to improve the efficiency of nutrient absorption. Patients can eat more fruits and vegetables to increase their intake of vitamins and fibers. It is also generally advised for patients to eat more garlic, avoid eating leftovers, overnight foods, pickled items, abstain from alcohol, especially strong spirits, and avoid smoking.