He still tried to live his life to the fullest.
Image Credit: Goodfullness
Later on, Derek would require a bone marrow extraction.
Image Credit: Goodfullness
The extraction caused him to wake up with pain.
Image Credit: Goodfullness
Despite the pain, his mother was always there for him to make things better.
Image Credit: Goodfullness
Here is a photo of them before Derek was diagnosed with cancer.
Image Credit: Goodfullness