Dance Moms star Abby Lee Miller has been diagnosed with non-Hodgkin's lymphoma after undergoing emergency surgery for her spinal cord.

At first doctors suggested that Miller suffered from some sort of infection but now it's been confirmed that the 51-year-old has some form of cancer.

Abby Lee Miller's Health

The Lifetime reality star's health rapidly deteriorated after she spent 336 days at Victorville Federal Correctional Institution in California. Miller was sentenced to prison for bankruptcy fraud but was then transported to a halfway house to complete the sentence.

On April 10, Miller was rushed to the ER for an unspecified medical complaint. After suffering from "excruciating" neck pain, Dr. Hooman M. Melamed performed surgery on her. Melamed stated that if surgery was not performed on Miller, she would have died and that her blood pressure had dropped extremely low.

On Wednesday, April 18, Melamed revealed to People Miller's final condition and that it's much graver then expected.

"It was not an infection. It was a type of a non-Hodgkin's lymphoma - it's a type of cancer," Melamed disclosed.

Melamed continued that more tests will have to be done to determine how to best treat Miller's condition.

"Depending on the tumor type, depending on the sensitivity of the tumor - it just depends [on] the type but I feel more than yes, she will undergo chemotherapy or radiation," Melamed continued.

'Dance Moms' No More

Miller became a popular household name after appearing on the Lifetime reality show Dance Moms in 2011. Miller was a series regular for seven seasons. Miller was then featured on the spinoff series, Abby's Ultimate Dance Competition, Dance Moms: Miami; and Dance Moms: Abby's Studio Rescue.

She then appeared on Dancing With the Stars as a guest judge. Miller officially quit the series in March 2017. During her time on Dance Moms, Miller was accused of being "violent and aggressive" towards the dancers on the show. Miller was sued by one of the show's dancers who also claimed that the show encouraged Miller's abrasive behavior.

In 2010, Miller filed for bankruptcy and reportedly owed the government more than $400,000 in taxes. The Pennsylvania native was indicted in 2013 for fraud for creating a secret bank account that was used to hide money from TV deals and merchandise sales.