Teddi Mellencamp marked her 44th birthday with good spirits and laughter

She has now told fans in an update on her battle on Instagram: "I accidentally keep telling people I am turning 34 instead of turning 44. Maybe it's the steroids. Maybe it's wishful thinking. You decide."

Teddi also posted a selfie showing her sleek blond bob and cleavage-bearing dress before heading out with friends to celebrate early.

In February this year, she shared the devastating news that her melanoma had metastasized to her lungs and brain.

Despite the serious diagnosis, she remains hopeful, telling fans in April: "All tumors stage 4 (metastasized melanoma in my brain and lungs) shrunk or disappeared."

Teddi's hair, which had been lost during treatment, is now growing back - a development she described as a "real change" that "made me smile."

On her birthday celebration on 30 June, Teddi was surrounded by friends, including Tamra Judge, her cohost on the podcast Two T's in a Pod.

The festivities included a horse-themed cake, a nod to Teddi's lifelong love of riding and the passion shared by her daughter, Slate, 12.

She is also mother to Cruz, 10, and Dove, five, with her husband Edwin Arroyave.

In the birthday post, Teddi also revealed a new addition to her collection of trendy collectibles, sating online: "I GOT MY FIRST LABUBU."

She was referring to the monster dolls currently fetching high resale prices, and added: "And don't you worry, I got cute little outfits coming its way."

Her 44th birthday posts drew warm responses from fellow Bravo stars, with Real Housewives of New Jersey's Melissa Gorga commenting: "Sooo gooodddd."

Real Housewives of Atlanta's Cynthia Bailey wrote, "Happy Birthday

!" while Real Housewives of Dallas's Kameron Westcott praised the cake: "Happy happy Birthday!! The cake!! So cute!!"