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Do you have any information on “Atypical CLL”?

A MyLeukemiaTeam Member asked a question 💭
Ottawa, ON
August 18
 · 
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MyLeukemiaTeam

"Atypical CLL" isn't a formally defined subtype in the same way as other CLL classifications, but CLL itself is categorized in several ways that can make some cases seem "atypical" compared to the standard presentation.

CLL is generally grouped by:

- Cell type affected – Most cases (over 95%) are B-cell CLL, but T-cell Show Full Answer

"Atypical CLL" isn't a formally defined subtype in the same way as other CLL classifications, but CLL itself is categorized in several ways that can make some cases seem "atypical" compared to the standard presentation.

CLL is generally grouped by:

- Cell type affected – Most cases (over 95%) are B-cell CLL, but T-cell variants exist
- Growth rate – Indolent (slow-growing) vs. aggressive (fast-growing)
- Genetic mutations – Certain gene changes, like mutations in the IGHV gene, can affect prognosis and treatment

Some cases may be considered atypical because the cancer cells display unusual characteristics on lab tests, such as different proteins on the cell surface, or because the CLL has features that overlap with rarer subtypes like Hairy Cell Leukemia or B-cell Prolymphocytic Leukemia (B-PLL). The best step is to speak with your oncologist about what specifically makes your case "atypical," as genetic testing can help clarify the exact subtype and guide the most appropriate treatment plan for your situation.

August 18
A MyLeukemiaTeam Member

I have NK LGLL, many variants depending on blood cells involved? But what does atypical mean?

August 23
A MyLeukemiaTeam Member

The Team Response is My first information as to what Atypical CLL means. I will be looking for other explanations. We will learn together. Thanks for the questuin.

August 21
A MyLeukemiaTeam Member

Hopefully other members on this forum that have what your husband has will respond with their experiences. Sometimes it takes time tho for a response as people don’t check in daily. Also, don’t hesitate to ask his doctor questions & also seek a second opinion. Advocate & learn from valid medical resources vs A I

August 18
A MyLeukemiaTeam Member

My husband was diagnosed by his oncologist with Atypical CLL which is hard to diagnose (it took a year) and does not respond well to treatment. I would like to know more about it.

August 18

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