There was a bug that occurred within Google Places last weekend, the result was that multiple listings stopped displaying on Google’s first page of local results. In Google’s defense they were quick to respond to the complaints being posted in the Google Groups forum concerning the issue. They said the bug is getting worked out and most listings that disappeared are now back displaying in Google’s local search rankings.
That being said, there have been several cases where the listing is not display the same/all the categories selected in the back-end of the listings Google places account. For example, a listing may have multiple categories associated with itself because it is a day spa offering treatments for hair, skin, nails etc… Since the occurrence of the “bug” that occurred early last weekend the listing may not be displaying all the categories.
This is more of a warning to Google Places owners to just check your listing and make sure it is displaying everything correctly.