Can occasional smoking and drinking be okay with thyroid cancer?

Written by Yan Chun
Oncology
Updated on November 27, 2024
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Thyroid cancer is a common malignant tumor in the head and neck area, and currently, the exact mechanism and etiological causes of thyroid cancer are not clearly defined in the clinic. However, some research studies indicate that there are certain factors associated with the incidence of thyroid cancer. For example, ionizing radiation, prolonged exposure can lead to the occurrence of thyroid cancer. Both insufficient and excessive iodine intake can lead to a high incidence of thyroid cancer. Genetic factors also play a significant role in the development of thyroid cancer. Excessive smoking and drinking can promote the occurrence of thyroid cancer. Therefore, heavy smoking and drinking are not recommended, but occasional smoking and drinking do not significantly impact the condition of thyroid cancer and are deemed acceptable. Moreover, for patients with thyroid cancer, treatment is primarily surgical, as radiotherapy and chemotherapy are not very sensitive anti-tumor treatments.

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Causes of Thyroid Cancer

Regarding the causes of thyroid cancer, they are similar to most malignant tumors. The etiology of thyroid cancer is currently unclear, but some factors have been found to be associated with the onset of thyroid cancer. The first factor is neck radiation; the thyroid is an endocrine organ that is sensitive to radiation, so radiation exposure may cause carcinogenic changes in thyroid cancer cells. The second factor is genetics; some thyroid cancers have a clear genetic predisposition, the most typical being medullary thyroid cancer, with about 25% of patients showing familial clustering, known as familial medullary thyroid cancer. The third factor is that the rapid increase in the incidence of thyroid cancer also has some reasons, with one recognized reason being advancements in early diagnostic methods, allowing for the easy detection of numerous early lesions. The fourth is iodine intake, which has been shown to be related to some benign diseases of the thyroid, but its relationship with thyroid cancer itself needs further study.

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How is thyroid cancer diagnosed?

The first point is the diagnostic process for differentiated thyroid cancer. Initially, most patients may not have symptoms, while a minority might show symptoms due to invasion of surrounding organs. Ultrasound examination is the preferred method for diagnosing thyroid nodules. Ultrasound can clarify the number, nature, and location of thyroid nodules, as well as provide information on whether there are abnormally enlarged lymph nodes in the neck. It has a relatively high accuracy in identifying the nature of thyroid nodules. Currently, the most accurate test for determining the nature of thyroid nodules remains the fine needle aspiration cytology, which has a diagnostic sensitivity of 83-92% and specificity of 80-92%, but it is not 100% conclusive. The second point is about the diagnosis of medullary thyroid cancer. Besides the tests common for thyroid cancers, additional tests for medullary thyroid cancer can include fine needle aspiration, ultrasound, and some serological tests, such as calcitonin and carcinoembryonic antigen tests.

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What are the clinical manifestations of thyroid cancer?

For patients with thyroid cancer, the most common clinical manifestation is thyroid nodules, and most patients do not have obvious clinical symptoms, only being incidentally discovered during physical examinations. In rare cases, patients may seek medical attention due to enlarged cervical lymph nodes. As the condition progresses, the neck mass gradually enlarges, becomes firmer, and its mobility decreases during swallowing. In some rapid developments, it may invade surrounding tissues, leading to late-stage symptoms such as hoarseness, difficulty breathing, and difficulty swallowing. When the cervical sympathetic nerve is compressed, it can cause pain in the ears, occipital region, and shoulders. In the case of medullary carcinoma, which can produce serotonin and calcitonin, patients may sometimes experience symptoms such as diarrhea, palpitations, facial flushing, or decreased blood calcium levels.

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Differences between the symptoms of thyroiditis and thyroid cancer

Thyroiditis, if it is acute suppurative thyroiditis, clinical manifestations include fever, local pain in the thyroid, tenderness on palpation, and a hard texture of the thyroid. Examination will show an increase in white blood cells. Subacute thyroiditis may also present with mild fever or high fever and local pain in the thyroid, but compared to suppurative thyroiditis, the increase in white blood cell levels is not as significant in subacute thyroiditis. If it is autoimmune thyroiditis, there may not be obvious symptoms clinically; there may be enlargement of the thyroid, and the thyroid may feel tougher upon palpation. As for thyroid cancer, clinically, if it does not cause hyperthyroidism or hypothyroidism, there are no specific symptoms. When the cancerous tumor is large, there may be an enlargement of the thyroid, the texture of the enlarged thyroid will be very hard, and there will be notable local adhesions. Of course, the main difference can be detected and diagnosed through an ultrasound examination.

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Is there an abnormality in the routine blood test for thyroid cancer?

If you have thyroid cancer, it is advised that patients promptly visit a formal hospital for examination. If one undergoes a routine blood test, generally there will be no abnormalities. This test can reveal the number of platelets, the presence of anemia, or the state of white blood cells, which are not related to the thyroid. Therefore, if thyroid cancer patients undergo routine blood tests, typically no abnormalities will be found. In daily life, patients should ensure they rest sufficiently, engage in less physically demanding exercise, maintain a cheerful mood, plan their three meals a day wisely, and pay attention to nutritious diet planning.