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A MyDesmoidTumorTeam Member asked a question 💭
Wymondham, UK

I was given a suspected diagnosis of a Desmoid tumour after an MRI. I was never offered a needle biopsy, they decided on an excision biopsy and I still don't have a confirmed diagnosis months later.

I regret having the surgery as it has had a bigger impact than I thought it would, and I worry the tumour will just return anyway.

So I'm interested to see how others got their diagnosis? And whether it was difficult to get the diagnosis?

October 11
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A MyDesmoidTumorTeam Member

I'm sorry you were mistreated and misunderstood. I went to urgent care and they did an ultrasound and CT and referred me back to my cardiologist and GP. A few months later I saw my back doctor who did my total spinal fusion. He had seen one case of desmoid tumors when he did work in S. America. He now knows that you do no operate on them, or at least, as a last resort. He ordered the biopsy, I was referred to a specialist in oncology, and have received 28 radiation treatments simultaneously. The 5 cm lump is starting to go away so I'm hopeful that my body is absorbing the dead tumor tissue and eventually all will be ok. No guarantees with this odd creature! I wish you all the best and hope you find specialists who know what they're doing. My doctor has 25 active cases of desmoids! I feel like I'm in good hands.

October 14
MyDesmoidTumorTeam

What a frustrating and exhausting journey — and you're definitely not alone in finding the path to a desmoid diagnosis long and complicated. Many MyDesmoidTumorTeam members have shared similar experiences of delays, uncertainty, and difficult decisions along the way.

Desmoid tumors are genuinely tricky to diagnose. Only Show Full Answer

What a frustrating and exhausting journey — and you're definitely not alone in finding the path to a desmoid diagnosis long and complicated. Many MyDesmoidTumorTeam members have shared similar experiences of delays, uncertainty, and difficult decisions along the way.

Desmoid tumors are genuinely tricky to diagnose. Only 900–1,500 people are diagnosed each year in the United States, which means many doctors and pathologists have limited experience with them. Studies suggest that 30%–40% of desmoid tumors are misdiagnosed after biopsy, which speaks to just how complex these tumors are. The typical diagnostic process usually involves:

- A physical exam
- An MRI or CT scan
- A biopsy (the only way to confirm a desmoid tumor diagnosis)
- Sometimes genetic testing

A core-needle biopsy is the most common biopsy type used, but excision biopsies do happen depending on the tumor's location and a doctor's judgment. Given that confirmation is still pending, it may be worth asking for a second opinion from a soft tissue pathologist — someone who specializes in exactly these kinds of tumors. Getting the diagnosis right is crucial, as it directly shapes what treatment options make the most sense going forward.

Your concerns about recurrence are also completely valid and worth raising openly with a sarcoma specialist, who will have the most up-to-date knowledge on managing desmoid tumors after surgery.

October 11
A MyDesmoidTumorTeam Member

Very difficult to get a dx. I had to have a biopsy and had never heard the term before and I'm married to a retired doctor!

October 18

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A MyDesmoidTumorTeam Member asked a question 💭