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Yan Chun
Oncology
About me
Graduated from the Clinical Medicine Department of Qingdao Medical College, has been working in the Oncology Department since 2001, obtained the qualification of attending physician in the same year. Promoted to attending physician in 2003. Qualified as associate chief physician in 2011. Participated in advanced studies at Jinan Cancer Hospital from June to November 2015. Serves as a youth member of the Chemical Therapy Committee in Shandong Province, youth member of the Elderly Therapy Committee of the Qingdao Anti-cancer Association, and a member of the Biologic Therapy Committee of the Qingdao Anti-cancer Association.
Proficient in diseases
Chemotherapy, radiotherapy, deep hyperthermia, targeted therapy, and endocrine therapy for various tumors such as stomach cancer, colorectal cancer, lung cancer, breast cancer, ovarian cancer, and pancreatic cancer.
Voices
What are the symptoms of stage 1, 2, 3, and 4 rectal cancer?
Patients in stage I of rectal cancer mostly show no symptoms, with a few experiencing symptoms such as blood in their stool. Stage II patients generally experience intermittent rectal bleeding and diarrhea, some present with constipation, or mucopurulent and bloody stool. Stage III rectal cancer patients will experience abdominal pain in addition to rectal bleeding, with some showing symptoms of abdominal distension, nausea, and vomiting. Patients with stage IV rectal cancer, in addition to abdominal symptoms, can exhibit symptoms of distant metastases, such as coughing, chest tightness, shortness of breath, and difficulty breathing in those with lung metastases, and localized lump pain and mobility impairments in patients with bone metastases.
What are the late-stage symptoms of prostate cancer?
Prostate cancer is a common malignant tumor in the urinary system. The late-stage symptoms of prostate cancer include the following aspects: Many patients experience urinary symptoms such as frequent urination, urgent urination, and painful urination due to tumor obstruction. Additionally, some patients experience slow urination, difficulty urinating, and even severe urinary retention. A few patients may have painless or painful hematuria. Some patients, due to tumor compression or invasion, experience enlargement and pain of the inguinal lymph nodes, as well as swelling of the lower limbs. Some patients develop bone metastases, clinically manifesting as pain, reduced sensation, or paralysis. Some patients with prostate cancer develop pulmonary metastases, leading to clinical respiratory symptoms such as cough, chest tightness, breathlessness, and difficulty breathing.
Will anything grow on the cervix in the early stages of cervical cancer?
In the early stages of cervical cancer, a minority of patients may develop growths on the cervix, but most exhibit erosive changes or thickening of the cervix. Early-stage cervical cancer generally involves a small area of cancerous tissue, with localized lesions and shallow infiltration depth. Many symptoms manifest as recurrent cervical erosion that is difficult to heal completely. There are also a few cases where small nodular lesions appear on the cervix. These small nodules generally do not cause significant damage to the cervix and present with mild clinical symptoms. Many patients only experience mild vaginal bleeding and discharge, with rare occurrences of pain, fever, general fatigue, weight loss, or other systemic symptoms in clinical settings.
What should I do if rectal cancer causes jet-like bleeding?
Rectal cancer patients often experience bleeding, which is a common clinical manifestation. When patients exhibit spurting bleeding, we can adopt the following treatment strategies: Firstly, patients should refrain from eating, as food stimulation can exacerbate the bleeding; Secondly, patients should be administered some medications for hemostasis. When the effect of medical hemostasis is insufficient, we can employ interventional methods, or vascular embolization techniques for hemostasis; Thirdly, when the patient's bleeding volume is large, blood transfusions should be given to improve the patient's anemia; If the patient experiences shock due to bleeding, in addition to blood transfusion treatment, it is also necessary to provide fluid supplementation to ensure the overall volume status of the patient; Fifthly, when the effect of medical hemostasis is poor, surgical intervention is required to carry out hemostasis.
What are the symptoms of prostate cancer?
Patients with prostate cancer exhibit some signs before the onset of the disease. Patients may experience an increase in urination frequency, urgency, and pain similar to the clinical manifestations of urethritis, and some patients may present with hematuria. Moreover, prostate cancer will exhibit hyperplasia and enlargement as well as abnormal urine retention. As the disease progresses, prostate cancer lesions will spread to surrounding areas, presenting clinical symptoms such as pain, bleeding, or difficulty urinating. Clinically, some laboratory and imaging tests will reveal significantly elevated levels of prostate-specific antigen and prostate ultrasound, among other tests, might show abnormal nodular lesions.
Does cervical cancer cause anemia in the early stages?
Cervical cancer is one of the common malignant tumors in gynecology, and a small number of patients with cervical cancer may experience anemia in the early stages. This is because the main clinical symptoms of early-stage cervical cancer patients are mainly vaginal bleeding or vaginal discharge. As the amount of vaginal bleeding in patients with cervical cancer is not significantly related to the stage of the cancer, some patients in the early stages of cervical cancer may have a large amount of vaginal bleeding, which can lead to mild anemia. In some cases, patients may experience severe bleeding, which can lead to anemia-induced shock. For patients with cervical cancer, in addition to vaginal bleeding, some patients may also experience an increase in vaginal secretions and vaginal discharge. Young women may also experience an extension of the menstrual cycle and an increase in menstrual volume, all of which can cause anemia in patients clinically.
Early Symptoms and Warning Signs of Liver Cancer
The early symptoms of liver cancer primarily manifest as localized gastrointestinal symptoms. Patients develop an aversion to greasy foods and experience a decrease in appetite. Some may feel bloating and pain in the abdomen, nausea, and distention after eating, and even pain and bloating as early symptoms. Patients become reluctant to be active, and some liver cancer patients may not exhibit many symptoms in the early stages. The precursors of liver cancer mainly present as unexplained fatigue or generalized weakness. If individuals with a family history of liver cancer experience unexplained anorexia, fatigue, and lethargy, the possibility of liver cancer should be considered.
Does early-stage liver cancer cause yellowing of the skin?
In the early stages of liver cancer, generally, the skin does not turn yellow. This is because jaundice, which causes the skin to yellow, occurs in liver cancer patients due to the presence of jaundice. The causes of jaundice in liver cancer patients mainly consider two aspects. The first reason is due to the lesions of liver cancer, which damage liver cells and cause liver function damage, thereby causing jaundice. Another reason is due to significant liver lesions that compress the bile ducts and intrahepatic bile ducts, causing obstructive jaundice. Therefore, the appearance of jaundice is often a clinical manifestation of late-stage liver cancer. In the early stages of liver cancer, the lesions are generally small, causing only mild damage to liver function. Moreover, in most cases, it does not cause compression or obstruction in the biliary system, thus not leading to obstructive jaundice. Therefore, yellowing of the skin does not occur in the early stages.
How long will it take for the swelling to go down after flap surgery for oral cancer?
After undergoing flap surgery for oral cancer, the surgical incision will generally need one to two months to reduce swelling. After the swelling has subsided, some sensation in the affected area will start to return. For patients with oral cancer, flap surgery is primarily conducted due to the extensive skin damage caused by radical excision of the cancer. Therefore, substitute surgery using a flap is necessary to ensure the postoperative appearance. However, after flap surgery, patients may experience some rejection reactions to the new flap, leading to swelling and redness at the site of the surgical incision. This condition generally subsides after anti-inflammatory treatment and natural absorption, typically within one to two months post-surgery.
Will the routine blood test be abnormal for pancreatic cancer?
Pancreatic cancer is a malignant tumor of the digestive system. In the early stages, most pancreatic cancer patients generally have normal routine blood test indicators and show no abnormalities. This is because the early lesions are localized, without invasion or metastasis, and therefore have minimal impact on the overall body, not causing abnormalities in routine blood test indicators. As the disease progresses, patients in the middle and late stages of pancreatic cancer often exhibit abnormalities in routine blood test indicators, mainly manifested as abnormalities in hemoglobin levels. Patients experience mild, moderate, or severe anemia. Some patients may also have metastasis to the bone marrow, liver, spleen, etc. Clinically, there can also be a decrease in white blood cells and platelets. Due to the impact of pancreatic cancer lesions on liver function, there can also be abnormalities in coagulation function.