Mum had cancer but we think dementia killed her

My beloved mother passed away last month, and me and the rest of my family are devastated.

She had Non Hodgkins Lymphoma which was diagnosed 2 years ago. She was 70.

Chemo had no impact and she was on palliative care since last Summer. For the past 5 months she became very withdrawn, almost overnight. She also stopped talking and would only speak if we pushed her to, otherwise she remained silent and just used hand gestures.

She lost all interest in her her usual hobbies. She would spend all her days sleeping (which we know was caused by the advancing lymphoma) or just staring into space with a blank look.  One of the stanger signs of things worsening was that she started swirling water in her mouth and wouldnt swallow it. Sometimes she would cough and the water she would hold in her mouth would get spat out.

She couldnt hold a conversation and lost the ability to use a mobile phone. She couldn't remember things and never knew what day it was. She was incontinent and needed help with all day to day living. She also lost her her hearing for some months, though it did return to some extent.

We as a family put all this down to the rapidly progessing cancer. She was given 6 months to live but still managed to stay with us 8 months later. We didnt have any hospital visits due to Covid shutting down all hospitals. We didnt have any palliative care nurses come to the house much either for the same reason.

It is only now, weeks after her death that we have realised that all this was mosly likely not the cancer but that she had some form of dementia that went undiagnosed.  

Having spoken to several friends who have also lost loved ones to cancer, they all said that they did not recognise any of these signs. We are extremely saddened that this happened. We keep thinking that maybe she could have been with us longer if we had realised sooner. But, we didn't. And now mum is gone.  

Reading into everything now, it is incredible that we missed it. We mentioned all this to the cancer care specialists in the Haemotology Unit at our hospital in our phone consultations, but they didnt pick up on it either. 

Now we don't know how mum died.  It is truly awful. We were so fixated on the cancer and doing everything we could to beat it, we missed the very thing that killed her.

Has anyone else heard of or even experienced anything similar? We know mum cant come back but we just have so many questions that are compounding our enormous grief.

  • Hi Harry, so sorry for the loss of your mother. Sending all my love to you and your family at this difficult time. 
     

    I had to comment as my mother in law has dementia and a few of the symptoms you mention are ones that I can relate with. Although all dementia patients suffer varying symptoms, my mother in law is currently going through the water swishing thing and she's also losing her ability to hold a conversation, losing interest in things, staring blankly amongst many other things. 
    The only reason I could think of if it were the lymphoma is that if it was affecting her brain? Obviously I am no doctor so I'm only speculating but if you have any other questions about dementia etc, I'll be more than happy to answer to the best I can from my experience

    Best wishes

    Jay

  • Hi Harry, my Mum had blood cancer and dementia and your description of her decline is exactly as my Mum was.  To be frank she was so bad and didn't even know me any more that it was a relief when she died, treating her blood cancer stopped as she kept pulling her iv line out.  So although you don't know what killed her my only point would be that my Mum suffered two years of this and I wished it hadn't been that long.  So my prayers and thoughts to your family, just grieve her passing as the what ifs don't help.  Carol x 

  • Thank you for your thoughtful replies.

    Jay - I have wondered if the lymphoma affected her brain but I think that this is uncommon.  The only other thing i think it could be, is a major side effect of the chemo. The 2nd chemo treatment she had was unlicensed on the NHS and she only got it on compassionate grounds.  Not long after it finished, she lost her hearing so the brain decline could be connected too. I just dont know.

    Carol - I am sorry to hear about your mum.  It is so awful to have both the cancer and the dementia to deal with at the same time. Truly awful.  Two years is a long time compared to what we had.  Mum lived just under 2 years from the point of the Lymphoma diagnosis. But only 5 months from the onset of the dementia symptoms. It was such a rapid onset of symptoms, it completely thew us.

    I do now know what people mean when they say they lose loved ones twice when they have dementia. Although Mum still knew who we all were at the end, she had zero quality of life. She was almost like a zombie who was just existing, not living.  But, she was still our mum and we did not want her to go anywhere.

    I have read a few articles talking about rare instances where some patients who have chemo, go on to develop dementia like symptoms. But, there just isnt enough evidence or research. I just wonder how long she would have survived the cancer had it not been for the cognitive decline. We never got to have our last conversations about life and what she wanted as the sudden dementia put paid to that. It is all just so so cruel.

    Thanks again for your kind words. 

  • Hi Harry

    The same thing happened to my mum.  She was 86 and had colon cancer.  The last two months of her life it was like she got dementia. Because of her age they did not scan for brain mets.  I still cannot work out if she had dementia or brain mets.  She never had headaches or seizures but it looked like dementia.

    Did you ever find out what happened?

    liz

  • Hi Liz

    I am sorry to hear about your mum. 

    I just read about brain mets. I never knew about it before. It is possible I guess. 

    But with my mum, No, we never did find out. And I guess we never will.  Who could we possibly ask? The Doctors are all stil impossible to contact. A combination of covid lockdown and general incompetence.  They were pretty useless even when my mum was alive so I have not a shred of faith that this is an avenue worth pursuing.

    It makes me vey sad. And some days I still cannot believe this all happened. That she is gone even.

    I am certain she did get some form of dementia but the speed at which it arrived and her passing from it was just so fast. That is so terrible.

    Just wish we could have had more conversations with her in the last months instead of silence.

  • Hi Harry

    My mum was the same the last three months, just one word answers and generally vacant.  Never smiled or hsd any facial exoressions, just staring.  She became like a child.  It was all so confusing.  And it had left me devastated because my mum was always chatty and sociable.  We used to have great chats and laughs.  To see her like that at the end of her life has broken my heart and my faith in medicine.  
     

    Liz