The blotch has prompted speculation its a love bite from her new man... or perhaps its just a sign of her psoriasis.
What's on your neck? Kim Kardashian appears to have a red blotch on her neck as she arrived at the Cafeteria restaurant for dinner with Kanye West
Love bite or psoriasis? The appearance of the blotch after spending the night with Kanye will raise a few eyebrows
Although many may speculate it was given to her by West, Kardashian has been open about her battle with psoriasis.
The star was diagnosed with the skin condition last year, which she revealed to fans in an episode of Keeping Up With The Kardashians.
Kim's dinner date at Cafeteria came after she spent 24 hours in the rapper after flying in from Los Angeles on Wednesday.
They started off their time together by watching The Hunger Games at a Manhattan cinema, before moving on to the theatre to see the interactive production Sleep No More.
Finally home: Kim Kardashian arrived back at her New York hotel on Thursday evening after spending 24 hours with new rumoured love interest Kanye West
'(They stayed) close and intimate as they could,' an insider told Us Weekly magazine, who also said that they perused the show 'for hours'.
Following the visit, the duo crossed the road to visit the Maderley Bar, where they enjoyed the sounds of live band, Stella St. Clair and bopped along to '40s sounds.
'They seemed to be really enjoying each others company,' the source said.
After their epic date, Kim spent the night at the hip-hop star's TriBeCa apartment.
She was photographed sneaking out of his home at 10am on Thursday morning, wearing the same leather trousers, T-shirt and heels she was wearing the night before.
Time to refresh: Kim appeared a little on the sweaty side after her quick slap and dash make-up application on Thursday morning