Genetic Testing Report
Hello, I am diagnosed with stage 3B lung adenocarcinoma with an ALK gene mutation.
I am currently undergoing treatment with Alectinib.
A PET scan showed bright spots in the hilar region of the lungs; the thoracic oncologist indicated that these are old cancer cells, while the external thoracic team suggested they are newly developed cancer cells.
On November 2, I underwent surgery by the thoracic surgeon, and the thoracic oncologist performed ALK gene testing on the hilar region.
Below is my genetic testing report: SNOMED: 28000-B-M81403DX: Lung, hilar region/right lower lobe para-bronchial area, excisional biopsy ----- Adenocarcinoma ALK IHC: Positive.
ADDENDUM: Result of immunohistochemical stain: ALK (Ventana anti-ALK D5F3 IHC assay): Positive.
ALK comments: The tissue submitted for ALK study was fixed in formalin.
The 5μm immunohistochemical study for ALK was performed with Ventana anti-ALK (D5F3) rabbit monoclonal primary antibody, purchased from Ventana Medical Systems, Inc.
(Tucson, AZ, USA).
The detection system used was the OptiView DAB IHC Detection Kit and the OptiView Amplification Kit.
The immunostaining was performed with the BenchMark ULTRA automated slide staining system.
Scoring criteria for determination of ALK expression: # Positive for ALK: presence of strong granular cytoplasmic staining in tumor cells (any percentage of positive tumor cells).
# Negative for ALK: absence of strong granular cytoplasmic staining in tumor cells.
* Certain staining elements should be excluded, including 1) light.
May I ask:
1.
What does this report indicate?
2.
Is it the same ALK gene mutation?
3.
Are the hilar cancer cells old or newly developed?
4.
Is the condition worsening? Is it resistant to treatment?
5.
Should I continue taking Alectinib for future treatment?
6.
Thank you for your response, doctor.
Xiao Ke, 40~49 year old female. Ask Date: 2022/11/16
Dr. Yang Wenda reply Pulmonology
Hello: It should still be the original mutation.
For other questions, I suggest you consult your attending physician!
Reply Date: 2022/11/16
More Info
Understanding your ALK gene test results is crucial for managing your lung adenocarcinoma, especially given your current treatment with a targeted therapy like Alectinib (安立適). Let's break down your questions based on the information provided in your report and general medical knowledge.
1. Report Content: Your report indicates that you have adenocarcinoma in the lung, specifically in the hilar region and the right lower lobe. The ALK IHC (Immunohistochemistry) test was positive, meaning that the tumor cells show strong granular cytoplasmic staining for the ALK protein. This suggests that your cancer has an ALK gene rearrangement, which is a specific mutation that can be targeted by certain therapies, such as Alectinib.
2. Same ALK Gene Mutation?: Yes, the report confirms that you have an ALK gene mutation. The positive result for ALK indicates that the cancer cells are likely driven by this mutation, which is critical for determining the appropriate treatment strategy.
3. Old vs. New Cancer Cells: The distinction between "old" and "new" cancer cells can be complex. The report suggests that the findings in the hilar region may represent either residual disease from your previous cancer or new growth. The interpretation of these findings should be discussed with your oncologist, who can provide insights based on imaging studies and your clinical history.
4. Disease Progression and Resistance: The presence of new cancer cells could indicate disease progression. However, the fact that you are on targeted therapy (Alectinib) is a positive factor, as this treatment is designed to specifically target and inhibit the growth of ALK-positive cancer cells. Resistance can develop over time, but ongoing monitoring and adjustments in therapy can help manage this.
5. Future Treatment with Alectinib: Continuing Alectinib is generally recommended for patients with ALK-positive lung adenocarcinoma, as it has been shown to improve outcomes. However, your oncologist will consider your overall health, response to treatment, and any new findings from imaging or biopsies when making treatment decisions. Regular follow-up and monitoring are essential to assess the effectiveness of the therapy and make necessary adjustments.
6. Thank You for Your Questions: It’s important to maintain open communication with your healthcare team. They can provide personalized advice based on your specific situation, including the interpretation of imaging results and the implications for your treatment plan.
In summary, your ALK-positive status is significant for your treatment, and Alectinib is a suitable choice. The presence of new cancer cells should be closely monitored, and your oncologist will guide you through the next steps based on your ongoing response to treatment. Regular follow-ups and imaging will be crucial in managing your condition effectively. Always feel free to ask your healthcare provider any questions or concerns you may have regarding your treatment and prognosis.
Similar Q&A
Optimal Treatment Strategies for ALK-Positive Stage IV Lung Adenocarcinoma
Hello Doctor: I would like to ask about the treatment options for a patient with stage IV lung adenocarcinoma (with brain metastasis) who has an ALK gene mutation. 1. If participating in a clinical trial with oral ALK-targeted drugs such as Ceritinib (Zykadia) or Alectinib, if ...
Dr. Huang Yiwen reply Pulmonology
Dear Huang: Due to the lack of TKI medications for ALK mutations at our hospital, we have to transfer you to another facility. However, similar to other cases of lung adenocarcinoma, I would recommend starting with oral targeted therapy as the first line. If that is ineffective, ...[Read More] Optimal Treatment Strategies for ALK-Positive Stage IV Lung Adenocarcinoma
Managing ALK-Positive Lung Adenocarcinoma: Dosage and Symptoms Explained
Hello Doctor: I was recently diagnosed with stage 3B lung adenocarcinoma with an ALK gene mutation. I am currently undergoing treatment with Alectinib. Initially, while waiting for the health insurance approval for the medication, the hospital provided me with their stock of the ...
Dr. Wang Lanfeng reply Pulmonology
Hello: The initial recommended dosage of Anlisat is indeed 600 mg, taken in the morning and evening. Perhaps your attending physician has other considerations. It is advisable to discuss your treatment situation with your attending physician. Thank you.[Read More] Managing ALK-Positive Lung Adenocarcinoma: Dosage and Symptoms Explained
Understanding Hemoptysis After Lung Adenocarcinoma Surgery: What to Know
Your question: Hello, I am a stage 3B lung adenocarcinoma patient currently undergoing treatment with Anlotinib. I had surgery on November 3rd, and it has been almost two months since the operation. Recently, I have noticed a small amount of blood in my cough when I wake up in th...
Dr. Huang Yiwen reply Pulmonology
Dear Xiao Ke: Taking Alectinib is appropriate for cases of ALK-positive lung adenocarcinoma. After surgery, having just completed a CT scan with no signs of deterioration suggests that it is likely not a progression of the disease. It could be caused by a cough leading to minor p...[Read More] Understanding Hemoptysis After Lung Adenocarcinoma Surgery: What to Know
Understanding Lung Adenocarcinoma: Diagnosis, Treatment, and Next Steps
Hello, I hope you don't mind me reaching out for advice. My mother (68 years old) was found to have four tumors during an LDCT scan (1 in the right middle lobe, 2 in the right upper lobe, and 1 in the left upper lobe). She only feels some pain in her right chest, which affec...
Dr. Lai Yicheng reply Oncology
Dear Ms. Joyce, Regarding your letter, as you described, "After surgery, three tumors were confirmed to be lung adenocarcinoma (RML*1, RUL*1, LUL*1)." Therefore, the postoperative cancer staging should be M1a. As for whether there is metastasis beyond the lungs, I reco...[Read More] Understanding Lung Adenocarcinoma: Diagnosis, Treatment, and Next Steps
Related FAQ
(Pulmonology)
Postoperative Lung Adenocarcinoma(Pulmonology)
Lung Cancer(Oncology)
Ct Scan(Pulmonology)
Ct Report(Pulmonology)
Allergies(Pulmonology)
Chronic Obstructive Pulmonary Disease(Pulmonology)
Smoking Cessation(Pulmonology)
Lungs(Internal Medicine)
Covid-19(Pulmonology)