Abby Lee Miller isn't going to let cancer bring her down! The "Dance Moms" star, who has been recently diagnosed with Burkitt lymphoma, was in good spirits as she greeted moms on Mother's Day with a cheerful video selfie. Although she doesn't have kids of her own, Abby is a mother figure to her students and all the kids she's guided throughout her career as a dance coach.

"HAPPY MOTHERS DAY to all the wonderful, giving, kind, loyal, caring mothers--not to the ones who owe me money," Abby joked in the caption.

In the video, the "Dance Moms" founder was smiling from her hospital bed while she displayed her bright red nails.

She also used animated face filters to make her greeting more fun, although it could also be a way of masking her ailing condition.

Abby Lee Miller exhausted from cancer treatment, reports say

Shortly after she was released from prison for bankruptcy fraud, Abby experienced excruciating pain and was paralyzed from the neck down. In April, the 51-year-old reality star underwent an emergency surgery and was diagnosed with a type of non-Hodgkin's lymphoma, a form of cancer that develops in one's lymphatic system.

Currently, Abby is still in a hospital in Los Angeles to continue her cancer treatment. She regularly shares updates with her fans through Instagram, where she posts photos from her hospital bed.

Despite her seemingly positive outlook, the "Dance Moms" star is reportedly exhausted from the grueling chemotherapy sessions.

Radar Online reported that Abby's hair is now starting to fall out, much to the horror of her hair stylist. Diana Kaz, Abby's longtime hairdresser, reportedly posted a video over the weekend showing the bad state of Abby's hair.

Amid the tangles, Abby also had bald spots due to the effects of chemotherapy.

'Dance Moms' canceled?

Abby Lee Miller continues to stay strong in spite of her health crisis. An insider told People Magazine that the former dance coach is looking forward to coming out of this victorious.

“She is undergoing chemo and has good days and bad days, but overall she’s staying optimistic and looking forward,” the source said.

Unfortunately for her fans, Abby will likely stay away from the limelight as she focuses on getting better. She quit "Dance Moms" when she served her time in prison, but now it has been reported that the long-running show has been permanently canceled due to her health crisis. Abby Lee Miller is expected to return to a half-way house after her hospital stay.