It's been a long and difficult road, but Beverly Hills 90210 star Shannen Doherty has announced that her cancer is finally in remission.

The American actress, producer, author, and television director was diagnosed with breast cancer in March 2015 and has charted her battle against the disease, which spread to her lymph nodes, since. Posting a photograph of herself on Instagram to mark the happy occasion, Shannen wrote:

"Moments. They happen. Today was and is a moment. What does remission mean? I heard that word and have no idea how to react. Good news? YES. Overwhelming. YES. Now more waiting."

Last year TMZ has reported that the 44-year-old is suing her former management company for the lapse of her health insurance. The company, Tanner Mainstain, denied the claim. Shannen was diagnosed with invasive breast cancer in March and documents obtained by the website claim that early diagnosis may have prevented the cancer from spreading.

A post shared by ShannenDoherty (@theshando) on Nov 28, 2016 at 12:32pm PST

A statement released by the firm at the time read: "Tanner Mainstain is saddened to learn that Ms. Doherty is suffering from cancer and wishes her a full recovery. "However, the claim that Tanner Mainstain caused her to be uninsured, prevented her from seeking medical care, or somehow contributed to her cancer is patently false". Addressing the road ahead today, Shannen paid tribute to her fans, many of whom shared their own battles with cancer with her during her treatment.

Moments. They happen. Today was and is a moment. What does remission mean? I heard that word and have no idea how to react. Good news? YES. Overwhelming. YES. Now more waiting. As every single one of my fellow cancer family knows, the next five years is crucial. Reoccurrences happen all the time. Many of you have shared that very story with me. So with a heart that is certainly lighter, I wait. In the meantime, decisions. Reconstruction which is several surgeries. Decision on taking a pill for the next five years that comes with its own set of problems and side effects. I am blessed, I know that. But for now.... remission. I'm going to just breathe. #cancerslayer

A post shared by ShannenDoherty (@theshando) on Apr 28, 2017 at 4:06pm PDT

"As every single one of my fellow cancer family knows, the next five years is crucial." she wrote. "Reoccurrences happen all the time. Many of you have shared that very story with me. So with a heart that is certainly lighter, I wait. "In the meantime, decisions. Reconstruction which is several surgeries. Decision on taking a pill for the next five years that comes with its own set of problems and side effects. I am blessed, I know that. But for now.... remission. I'm going to just breathe."