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Gong Chun
Oncology
About me
Hunan University of Chinese Medicine First Affiliated Hospital, Department of Oncology, Attending Physician, has been engaged in clinical work in oncology for many years, with rich clinical experience in the diagnosis and treatment of common oncological diseases.
Proficient in diseases
Specializing in common cancers of the respiratory system, digestive system, urinary system, and circulatory system.
Voices
Will people with lung cancer experience weight loss?
This question should be answered specifically. Some people may initially experience symptoms such as weight loss and fatigue when they start to develop lung cancer. Some people with better physical constitution may not lose weight so easily. However, if a malignant tumor persists in the body for a long time, it will consume the body's nutrients and lead to a state of cachexia, characterized by systemic toxicity symptoms including weight loss, fatigue, fever, and other similar symptoms.
How is breast cancer treated?
For the comprehensive treatment of malignant (breast cancer), it needs to be specifically addressed based on case analysis, considering the patient's physical condition, economic factors, and other circumstances. There isn't a one-size-fits-all treatment plan suitable for everyone, as each case requires specific analysis. The treatment options for breast cancer include, firstly, surgery, which can be either a mastectomy or breast-conserving surgery, depending on lymph node metastasis and pathological staging. The second option includes radiation therapy, the third is endocrine therapy, the fourth is chemotherapy, the fifth is targeted therapy, and the sixth and subsequent options may include immunotherapy.
Symptoms of rectal cancer recurrence
The symptoms of rectal cancer recurrence can include changes in bowel habits and stool characteristics, possibly presenting as rectal bleeding, increased frequency of bowel movements, a sensation of heaviness in the anus, and changes in stool shape, such as narrowing. The second symptom may be abdominal pain, particularly persistent and subtle pain. The third symptom involves palpable abdominal lumps or masses, especially with right-sided colon cancer. The fourth symptom is intestinal obstruction, which can occur if the bowel is blocked due to the recurrence of rectal cancer, leading to symptoms of intestinal obstruction. The fifth symptom, if the recurrent rectal cancer has metastasized, may lead to symptoms at the respective metastatic sites.
Causes of cervical cancer
The causes of cervical cancer are particularly associated with human papillomavirus (HPV) infection. The primary causes that can lead to precancerous lesions and cervical cancer itself, in a minority of cases, do not detect HPV DNA, especially in older patients. Epidemiological studies show that early childbirth and multiple childbirths are highly related to the incidence of cervical cancer; as the number of childbirths increases, the risk of cervical cancer also increases. Smoking can suppress the body's immune function and may promote cancer development. Men who have had penile cancer, prostate cancer, or previous cervical cancer are at high risk; therefore, women who have contact with high-risk men are also more susceptible to cervical cancer.
What are the symptoms of ovarian cancer?
In the early stages, ovarian cancer often doesn't show many symptoms and can be detected during gynecological examinations. However, as it progresses, symptoms such as abdominal bloating, lumps in the abdomen, and ascites may occur. The severity of these symptoms depends on the size and location of the tumor, the extent to which it has invaded nearby organs, the histological type of the tumor, and whether the malignant tumor, ovarian cancer, has metastasized to other areas or is accompanied by other complications.
Late-stage symptoms of cervical cancer
What are some symptoms of late-stage cervical cancer? First, there may be vaginal bleeding, characterized by irregular vaginal bleeding. The amount of bleeding varies depending on the size of the lesion and the invasion of interstitial blood vessels. In the late stages, as major blood vessels may be eroded, significant bleeding can occur. The second symptom is vaginal discharge, which is often increased and may be white or blood-stained. Third, late-stage symptoms may include secondary symptoms such as involvement of adjacent tissues and organs and affected nerves, leading to frequent urination, urgency, constipation, swelling and pain in the lower limbs. Cancer pressing on the ureters can cause obstruction of the ureters, hydronephrosis, and uremia. Late stages may also present with symptoms of systemic failure such as anemia and cachexia.
Symptoms of brain metastasis from lung cancer
Brain metastasis of lung cancer is caused by hematogenous spread of lung cancer to the brain. Brain metastasis typically presents with symptoms such as headaches, nausea, and vomiting, including projectile vomiting. The headaches may be severe, and there may be abnormalities in sensory perception and motor function, possibly accompanied by seizures, mental confusion, olfactory disturbances, visual impairments, and other symptoms. The specific symptoms can vary depending on the location of the metastasis in the brain. However, most patients experience headaches, nausea, and vomiting. Individual differences are significant, and it's important to analyze the specific issues and the specific areas of the brain affected.
Can rectal cancer be detected by ultrasound B?
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.
Thyroid cancer ultrasound manifestations
The characteristics of ultrasonography for thyroid cancer include the tumor being a solid hypoechoic mass with unclear boundaries, uneven internal echoes, abundant internal blood flow, and the presence of sandy calcifications and longitudinal growth, among others. Currently, ultrasonography is the preferred method for examining thyroid nodules. It can clearly identify the number, nature, and location of thyroid nodules, as well as whether there are any abnormally enlarged lymph nodes in the neck. Ultrasonography is highly accurate in differentiating the nature of thyroid nodules, with experienced ultrasonographers reaching an accuracy rate of over 80%. However, the highest accuracy in differentiating the nature of thyroid nodules is still achieved with fine-needle aspiration cytology.
How is lung cancer caused?
The specific causes of lung cancer are not completely clear, but there are some high-risk factors. Research has shown that lung cancer is influenced by a combination of genetic defects and internal and external environmental carcinogens. It is undeniable that long-term heavy smoking is the most important carcinogenic factor for lung cancer, with the amount and duration of smoking being positively correlated with the incidence of lung cancer. Secondly, environmental factors, such as working with asbestos or in mining areas, are also very relevant to the incidence of lung cancer. Thirdly, irregular eating habits, rest, alcohol consumption, indoor combustion, coal smoke, fumes from kitchen cooking, and carcinogenic substances released from indoor decorations and materials are also related. Fourthly, the body's internal immune status, metabolic abnormalities, genetic factors, and chronic lung infections also have a significant impact.