Lena Dunham has backed down from comments she made accusing editors of a Spanish magazine of photoshopping an image of her.

The Girls creator reacted angrily after staff at Tentaciones magazine shared the cover of the latest issue, featuring a picture of Lena she claimed had been digitally altered to make her look slimmer.

Lena posted the shot, which featured her wearing a white sleeveless shift dress, on Instagram.com, and suggested it was "more than the average photoshop" and adding it was, "NOT what my body has ever looked like or will ever look like".

On Tuesday (01Mar16) magazine bosses published an open letter to the TV star on Spanish newspaper website El Pais, insisting they had not digitally retouched the picture.

In a reply to the letter, also posted on Instagram, Lena stopped short of accepting the picture had not been altered at all, but admitted magazine staff may not have been responsible.

"Hey Tentaciones - thank you for sending the uncropped image (note to the confused: not unretouched, uncropped!) and for being so good natured about my request for accuracy," she wrote.

"I understand that a whole bunch of people approved this photo before it got to you - and why wouldn't they? I look great. But it's a weird feeling to see a photo and not know if it's your own body anymore (and I'm pretty sure that will never be my thigh width but I honestly can't tell what's been slimmed and what hasn't). I'm not blaming anyone (y'know, except society at large)."

She then apologised to editors for making them "the problem", adding, "Time to get to the bottom of this in a bigger way. Time to walk the talk. With endless love, Lena PS I'd love the Tentaciones subscription I was offered!"

A spokesperson for Prisa, the company which publishes Tentaciones, has praised the actress for her "lovely response".