The “Real Housewives of Beverly Hills” star revealed her devastating diagnosis.

Mia Thornton is taking things one day at a time and trying to stay optimistic after learning she has cancer.

The 37-year-old Real Housewives of Potomac star revealed in an emotional Instagram post on Friday that she had received a call from her doctor the previous week regarding certain test results.

A week ago, Doc received a call from Mia at 7:31 a.m. “I want to offer my heartfelt sympathies, but I just received the results of your testing, and I need you to report to the Johns Hopkins Cancer Center today,” she began the caption.