Dotatate lights only in liver, but report says metastatic to liver?

Posted by splendrous @splendrous, Oct 14 2:01pm

Cat Scan shows 4x3 cm mass in liver and lesions in other lobe. Biopsy results neuroendocrine liver tumor. KI-67 6-8%. Synaptophysin and CK Cam positive. Chromogranin A normal reading. CDX2 negative.
5-HIAA had normal reading. Dotatate PET/CT found multiple lesions in the liver consistent with metastatic lesions. Anyone else had similar findings? Dotatate says metastatic but does not show any lesions but in the liver. Biopsy does not mention metastatic. From my reading 4x3 cm seems large but nothing was seen in scan 2 years ago, so does it grow that fast? I have read that sometimes the origin is not found. Does it make a different in treatment?

Interested in more discussions like this? Go to the Neuroendocrine Tumors (NETs) Support Group.

@splendrous

In reply to your questions, I had breast cancer 9 years ago, so periodically have scans to see if the disease has reappeared. A mass was seen in the liver from the scan and a biopsy was done identifying it as a metastatic neuroendocrine tumor not breast cancer. Thus began a series of additional tests including the Dodotate Pet CT to identify the origin. I have several tumors in the liver along with the mass. Since my tumor is not functioning and not producing hormones, I have no symptoms. So only reason it was identified was due to follow up from previous cancer. I am 77 years old. I assume that you were started on your treatment when your tumor was identified approx 2 years ago. Where is the doctor that is treating you? Have you seen any growth in your tumors? Is the expectation that you will continue with the current treatment indefinitely? I have given questions to my doctor to ask Mayo Clinic doctor how much growth would be a trigger to start treatment and the pro and con of watchful waiting vs starting treatment. A doctor that is a NETS specialist recently arrived in Atlanta that was working at MD Anderson and he recommended that I start octreotide now due to the grade 2 and KI-67 index of 6-8%. My breast cancer oncologist is reviewing my case with the Tumor Board this week and I suspect they will agree with the recommendation of starting treatment now. The MD Anderson doctor said he would consider surgical exploration if stable disease is observed for 6-12 months on therapy.

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I'm being treated at IHC Oncology in Utah. My oncologist specializes in NETS and was educated at Vanderbilt. There has been no growth since I started the Somatuline Feb2023. I was told it usually works for 3 yrs but I've met people who have been on it longer. We haven't specifically discussed the next step but eventually maybe PRRT or another. I did have the primary NET removed from my SI 4/21/23 . It was an emergency operation as it was blocking my intestines. They took the 2.5cm tumor, 10in of SI, GB, and some lymphnodes that had cancer cells too. I too have innumerable nets in my liver so not likely they can cut them out. Thank you for sharing. Having more information is helpful. I hope the best for you. 🙏💚

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@stevestenberg31

I'm being treated at IHC Oncology in Utah. My oncologist specializes in NETS and was educated at Vanderbilt. There has been no growth since I started the Somatuline Feb2023. I was told it usually works for 3 yrs but I've met people who have been on it longer. We haven't specifically discussed the next step but eventually maybe PRRT or another. I did have the primary NET removed from my SI 4/21/23 . It was an emergency operation as it was blocking my intestines. They took the 2.5cm tumor, 10in of SI, GB, and some lymphnodes that had cancer cells too. I too have innumerable nets in my liver so not likely they can cut them out. Thank you for sharing. Having more information is helpful. I hope the best for you. 🙏💚

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I am glad to hear that the treatment has kept the tumors from growing! I wish you well on your upcoming scan. Thanks for sharing.

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