Why did my husband have lots of green mucus before he passed

[divegirl54]

My husband passed away at home 2 months ago. I am still questioning why he had in his final hours, green like mucus coming out of his mouth and nose. I had to order a suction machine to help him to breathe. No one from Hospice or the doctor would comment on why this happened. He died from colon and liver cancer. He had not had anything wrong with his chest at all. I do not remember that happening with my father when he passed with cancer a few years back. Also a few days before he passed he lost the use of his hands. He held them up to his chest in a ball. He was not cramping in his arms or hands. Again this was not explained to me. It keeps weighing on my mind, and would like to try to find out what may have happened. Thank you so much for your help.
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[Jinx_777]

so sorry for the loss of your husband.  i hope you are doing okay.   i was there when my daughter's grandpa died in his home.  he had kidney cancer and he went really fast.  3 months after diagnosis.  
anyway, when he passed he also had that frothy substance coming from his mouth as well.  Secretions may thicken due to less fluid intake and build up because the patient cannot cough and when they finally pass these secretions make their way out.  this is how hospice explained it to us.
hope this helps and if anyone has additional comments or i am wrong, feel free to correct me.

[womandater]

Sometimes, pneumonia can accompany some cancers. Did you bring this up with the attending physician?