Oral cancer
Hello, Doctor! I underwent a total thyroidectomy for thyroid cancer last November, and on February 19 of this year, I received radioactive iodine treatment, which required a four-day hospital stay.
I am currently isolating at home.
Recently, I noticed a white lesion in my oral cavity (the exact duration is uncertain as it is located in a hidden area of the mouth), approximately 2 mm in size.
It is painless and has not shown any signs of regression, but I have experienced slight numbness in my cheek, which makes me very concerned that it could be oral cancer.
Could you please advise how long after radiation therapy I should wait before undergoing an oral biopsy? If the condition worsens rapidly, what steps should I take? Thank you! Li Hsien
Li, 50~59 year old female. Ask Date: 2010/03/02
Dr. Zeng Guanghui reply Dentistry
Hello, thank you for your question.
I would like to respond to your inquiry and provide the following advice: After thyroid cancer surgery, radiation therapy may cause trauma to the oral mucosa and hard tissues such as teeth.
Additionally, damage to the salivary glands can result in symptoms of dry mouth and dry tongue.
If there are white lesions in the oral cavity, it is advisable to see a dentist or oral surgeon for an examination as soon as possible.
Wishing you peace and happiness!
Reply Date: 2010/03/02
More Info
Hello! Thank you for reaching out with your concerns regarding your oral health following thyroid cancer surgery and radioactive iodine treatment. It’s understandable to feel anxious about any new symptoms, especially after undergoing significant medical procedures.
First, let's address your concern about the white lesion in your mouth. While it’s important to consider that any new growth or change in the oral cavity could potentially be a cause for concern, not all lesions are cancerous. The white granular appearance you described could be due to a variety of factors, including irritation, infection, or even benign conditions like leukoplakia. However, given your history of cancer, it’s prudent to have any new or persistent lesions evaluated by a healthcare professional.
Regarding your question about the timing of a biopsy after radioactive iodine treatment, it is generally recommended to wait a certain period before performing a biopsy to allow for any potential radiation-induced changes to stabilize. Typically, a waiting period of at least 6 to 12 months is suggested, but this can vary based on individual circumstances and the judgment of your healthcare provider. It’s crucial to discuss this with your oncologist or the physician managing your care, as they can provide guidance tailored to your specific situation.
If you notice that the lesion is changing rapidly, or if you experience additional symptoms such as pain, difficulty swallowing, or significant changes in sensation, it is essential to seek medical attention sooner rather than later. Rapid changes can indicate a need for more immediate evaluation.
In terms of your concern about the potential for oral cancer, it’s important to remember that while there is a risk of secondary cancers following treatment for thyroid cancer, the overall incidence is relatively low. Factors such as the type of treatment received, your overall health, and lifestyle choices (like smoking and alcohol use) can influence this risk. Since you mentioned that you do not smoke or drink alcohol, you are already taking positive steps to reduce your risk.
Maintaining good oral hygiene is also crucial. Regular dental check-ups and cleanings can help monitor your oral health and catch any potential issues early. If you have any underlying conditions, such as dry mouth (xerostomia), which can be a side effect of radiation treatment, managing this condition is vital. Staying hydrated, using saliva substitutes, and avoiding irritants can help alleviate symptoms.
In summary, while it’s natural to be concerned about new symptoms following cancer treatment, not all changes are indicative of cancer. It’s essential to communicate openly with your healthcare team about your symptoms and concerns. They can provide the most accurate assessments and recommendations based on your medical history and current condition. If you feel that your symptoms are worsening or if you have any doubts, don’t hesitate to seek a second opinion or request further evaluation. Your health and peace of mind are paramount.
Take care, and I wish you the best in your recovery and health journey!
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