Concerns About Oral Cancer After Thyroid Surgery: What to Know - Dentistry

Share to:

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!

Similar Q&A

Post-Thyroid Cancer Surgery: Essential Care and Lifestyle Tips

Hello Doctor: I underwent a thyroid malignancy resection on February 12th, and it is now the end of February. I will return for a follow-up appointment around March 20th. I would like to ask: (1) What precautions should I take after the surgery? For example, regarding food, etc. ...


Dr. Yang Hongzhi reply Internal Medicine
After surgery for thyroid cancer, radioactive iodine treatment is often considered. In addition to limiting iodine intake from food as much as possible before radioactive iodine scans or treatments, there are generally no restrictions on food intake at other times. If a total thy...

[Read More] Post-Thyroid Cancer Surgery: Essential Care and Lifestyle Tips


Post-Thyroid Tumor Surgery Care: What to Expect and Monitor

Hello Doctor, my husband has tumors on both sides of his thyroid, with the one on the left being quite large and visibly noticeable. He is scheduled to undergo surgery to remove the left tumor next week, while the right side will not be operated on at this time. I would like to a...


Dr. Ye Dawei reply Otolaryngology
Please monitor for any postoperative bleeding and check if there is hoarseness due to vocal cord paralysis. The likelihood of a malignant tumor is quite low. The specialist in thyroid surgery at our hospital is Dr. Zhao Ming from the Department of Surgery. You may consult him for...

[Read More] Post-Thyroid Tumor Surgery Care: What to Expect and Monitor


Should You Undergo Laryngoscopy for Thyroid Cancer Symptoms?

Symptoms: Hello, Doctor! The patient is a woman in her 60s. She recently underwent surgery for thyroid cancer about two months ago, but has suddenly developed a small swelling on the surface of her chest. A chest CT scan showed no issues, but there is a mass in the laryngeal cart...


Dr. Zeng Yuhua reply Oncology
Hello! The patient has two types of cancer, and if an abnormal new tumor is found, it is advisable to perform a biopsy for examination if there are any suspicions. Whether to use regional or general anesthesia should be discussed with an anesthesiologist. Additionally, the patien...

[Read More] Should You Undergo Laryngoscopy for Thyroid Cancer Symptoms?


Understanding Thyroid Tumors: Insights on Surgery and Follow-Up Care

Hello, doctor. I have a nodule on my right side that has been monitored and aspirated, both results indicating it is benign. I found it bothersome, so I opted for surgical intervention. The doctor performed a unilateral total thyroidectomy to remove the tumor (nodule), and the bi...


Dr. Xiao Yongxun reply Internal Medicine
Dear Ms. Shine: 1. If a thyroid nodule appears hard and is accompanied by cervical lymphadenopathy, malignant transformation should be considered. If a long-standing goiter suddenly enlarges rapidly, accompanied by localized skin redness and fever, differentiated thyroid carcino...

[Read More] Understanding Thyroid Tumors: Insights on Surgery and Follow-Up Care


Related FAQ

Oral Tumor

(Dentistry)

Post-Thyroid Surgery

(Surgery)

Post-Wisdom Tooth Surgery

(Dentistry)

Thyroid Tumor

(Oncology)

Thyroid

(Otolaryngology)

Breast Cancer

(Breast and Thyroid)

Thyroid Nodule

(Internal Medicine)

Apicoectomy

(Dentistry)

Parotid Tumor

(Otolaryngology)

Oral Ulcer

(Dentistry)