A Clearwater, Florida, infant who was born with a growth on his back was dubbed “little Ninja Turtle” by his parents, as it resembled a “turtle shell.”

James McCallum, 19 months, was given the nickname due to the rare skin condition — which puzzled doctors.

According to James’ mother Kaitlyn McCallum, 35, ultrasounds did not reveal anything about the baby’s condition before he was born on Aug. 19, 2021.

However, the new mom and her husband Tim, 41, became worried when they noticed James’ back was scabbing and developing lumps.

“It looked kind of like a birthmark but scabbed over in parts — it was a little concerning, as it looked like something was wrong,” Kaitlyn told South West News Service.

When the mark grew — resembling a large mole — his parents took him for tests, waiting months for results.

“The doctors didn’t really know what it was at that point,” Kaitlyn recalled.

“It covered 75% of his back at the start, and it had started to get fattier and more lumpy,” she continued. “It seemed like it was growing.”

James’ lump grew rapidly, becoming so cumbersome for the baby that he had to sleep on his side.

“[It] had become like a turtle shell on his back,” she explained. “He couldn’t put his head down flat because it was so bulky.”

James had his first surgery to remove the nevus in February 2022, first having an MRI on his brain and spine to assess whether it was growing internally.

Kaitlyn delivered James in August, 2021. When he came out, there was a scabby growth on his back.

“(It was) terrifying, to say the least,” Kaitlyn said. “Right when he was born, it was pretty flat. There was a bump by his neck, there was a lump.”

“That’s kind of concerning, when you have medical professionals and they’re telling you they’ve never seen this before,” said Tim, who said doctors were initially puzzled.

As the McCallum parents searched for answers, struggling with the uncertainty, the growth increased in size, becoming lumpier and fattier. The spots grew darker, the texture became fleshier and the exterior grew hairier.

The growth began to resemble a turtle shell, with Kaitlyn and Tim adopting the nickname of “Teenage Mutant Ninja Turtle” for their toddler.

“We try to give him any superhero nickname, because that’s what he is to us,” Kaitlyn said.

Unfortunately, the shell-like growth also began to hinder James’ life. He couldn’t sleep on his back, which is a safe sleep practice for babies, and his head and neck movement became more and more restricted.

Finally, a pediatric dermatologist in Orlando offered a diagnosis: A giant congenital melanocytic nevus.

It’s a large patch of skin, often described as a mole or a birthmark, which presents at birth or develops in a baby’s first year. It is usually not harmful, though it can develop into cancer or become dangerous if it reaches the brain or spine. Thankfully, in James’ case, it was cumbersome, but harmless.

“Getting that diagnosis of ‘Okay, here is what It is, here’s who you can go to, here’s how we’re going to fix it,’ that was the moment of, ‘Okay, we can do this,’” Kaitlyn said.

Doctors began the removal process when James was six months old, starting with the lump by his neck and then moving down his back to remove the bulk of the shell. Now, they’ve started a series of procedures to remove the bad skin and replace it with good skin. A specialist at the University of Chicago is spearheading that work.

When it’s all over, doctors hope James will be left with nothing more than a scar. His parents know their turtle-shell hero will have a story to tell and they’ll look back on the strength it took for all of them to endure this birth surprise.

“I’ve learned how strong you can be and how much a mother can do for a kid,” Kaitlyn said. “Just keep staying strong. There’s an end to this and we’re almost there.”