The self-proclaimed "world's first supermodel" is apparently never to old for some self improvement.

Janice Dickinson underwent a tummy tuck and "mini neck lift" last Monday, Us Weekly reported online Wednesday.  According to the report, the plastic surgery was performed by Beverly Hills surgeon Dr. Frank Ryan, the same doctor who performed The Hills star Heidi Montag's recent work.

"Janice knows people will think she didn't need a tummy tuck," the source told Us.  "[She's been complaining about] a lot of extra skin [on her lower abdomen and wanted tighter abs]."

As for the 52-year-old reality television star's mini neck lift?

"[Her thinking was] she might as well since she was going under," the source told Us, adding Dickinson is resting at Santa Monica's Serenity after-care clinic.

Dickinson currently stars in Oxygen's The Janice Dickinson Modeling Agency. Before that, she served as a judge on the first four seasons of America's Next Top Model.  However prior to the fifth season, the now defunct UPN announced Dickinson was not coming back to Top Model for that classic PR reason -- "to pursue other projects."  She was replaced by former British model Twiggy, who remains a judge on Top Model to this day. 

Dickinson also appeared as a housemate on the fifth season of The Surreal Life where she -- surprise, surprise -- constantly butted heads with original The Apprentice diva Omarosa Manigault-Stallworth.

Like reality television, Dickinson is no stranger to plastic surgery.

"I consider plastic surgery important because I'm in front of the camera, I still model, and, quite frankly, I was noticing my skin looking like a turkey wobbler," Dickinson told Entertainment Tonight prior to her 2004 facelift, Us reported.  "I'm just trying to hang on to what I got."