Knee Tumors: Risks, Treatment Options, and Next Steps - Orthopedics

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There is a tumor on the right patella?


Hello, Dr.
Chen.
I would like to ask about my boyfriend.
Two years ago, he sustained a knee injury and was examined at the hospital, where the doctor informed him that a tumor was found in the bone of his right kneecap.
An X-ray confirmed the presence of a small dark spot indicating a tumor, but it could not be determined whether it was benign or malignant without surgical removal.
He delayed further follow-up at the hospital, and six months ago, during a military enlistment physical examination, he had another X-ray, which showed that the tumor in his right kneecap was still present, but there were no signs of growth.
He initially planned to undergo surgery during his military service, but when he inquired with his superiors, they informed him that even if he had surgery and recovered in six months, he would still need to serve.
As a result, he decided against it.
I would like to know if leaving the tumor untreated could lead to any complications or sequelae.
Are there any recommended hospitals or doctors for a more detailed examination? He had his initial check-up at Cathay General Hospital in Xizhi, where the doctor mentioned that the chances of a successful surgery were low and expressed concerns about potential mobility issues afterward, which frightened him and made him reluctant to seek further treatment.
Is there any method to definitively determine whether the tumor is benign or malignant? If it is benign, is it possible to avoid surgery? If left untreated, could it become malignant? Are there any medications available for treatment or management?

Sophie, 20~29 year old female. Ask Date: 2013/11/20

Dr. Chen Yongxue reply Orthopedics


Hello, based on the information in the letter, it is not possible to determine whether the patient's orthopedic tumor is benign or malignant.
Further imaging studies may be necessary.
If it is still indeterminate, the most accurate approach would be to perform a biopsy to assess the nature of the tumor, and then evaluate the surgical options based on its location.
Wishing you a speedy recovery.
Chen Yong-Hsueh, Orthopedics, Keelung Hospital, Ministry of Health and Welfare.

Reply Date: 2013/11/20

More Info


When it comes to knee tumors, particularly those that are discovered incidentally during imaging studies, there are several important considerations regarding risks, treatment options, and next steps. Your boyfriend's situation, where a tumor was identified in the knee joint, raises several questions that are common among patients facing similar diagnoses.


Understanding the Tumor
1. Nature of the Tumor: The first step in managing a knee tumor is to determine whether it is benign (non-cancerous) or malignant (cancerous). Imaging studies like X-rays, MRIs, or CT scans can provide valuable information, but often a definitive diagnosis requires a biopsy. This is typically done during surgery, where the tumor is removed and examined histologically.

2. Risks of Leaving the Tumor Untreated: If the tumor is benign, it may not pose an immediate threat, but it can still cause issues such as pain, swelling, or mechanical problems in the knee joint. If it is malignant, delaying treatment could allow the cancer to progress, potentially leading to metastasis (spread to other parts of the body). Even benign tumors can sometimes transform into malignant ones, although this is rare.

3. Symptoms and Complications: Symptoms such as pain, swelling, or limited range of motion can indicate that the tumor is affecting the surrounding tissues. If left untreated, complications could include chronic pain, joint instability, or even the development of osteoarthritis due to altered biomechanics in the knee.


Treatment Options
1. Surgical Intervention: The most definitive way to diagnose and treat a knee tumor is through surgical excision. This procedure not only allows for histological examination but also removes the tumor, which can alleviate symptoms. The concern about surgery leading to long-term mobility issues is valid; however, many patients can regain full function with proper rehabilitation.

2. Non-Surgical Options: If the tumor is determined to be benign and asymptomatic, some doctors may recommend a watchful waiting approach, with regular follow-ups and imaging to monitor for any changes. However, this is typically only advised for tumors that are confirmed to be benign.

3. Medication: There are no specific medications that can treat tumors directly. However, pain management and anti-inflammatory medications can help alleviate symptoms associated with the tumor. If the tumor is part of a broader condition, such as a benign tumor associated with a syndrome, targeted therapies may be available.


Next Steps
1. Consultation with an Orthopedic Oncologist: Given the complexity of tumors, it would be beneficial for your boyfriend to consult with an orthopedic oncologist, a specialist in bone and soft tissue tumors. They can provide a comprehensive evaluation and discuss the best course of action.

2. Second Opinion: If there are concerns about the initial diagnosis or treatment recommendations, seeking a second opinion from another orthopedic specialist or a tumor board can provide additional insights and options.

3. Monitoring: If surgery is not immediately pursued, regular monitoring through imaging studies is essential to track any changes in the tumor's size or characteristics.


Conclusion
In summary, while the presence of a tumor in the knee can be concerning, understanding its nature is crucial for determining the appropriate management strategy. Surgical intervention is often necessary for definitive diagnosis and treatment, especially if there is any suspicion of malignancy. If your boyfriend is hesitant about surgery due to fears of complications, it is important to have an open discussion with a specialist who can address these concerns and provide reassurance about the potential outcomes. Regular follow-ups and monitoring are essential, regardless of the chosen path, to ensure that any changes in the tumor's behavior are promptly addressed.

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