Thickening and cobbleing usually occurs in the head area. You could have some small "peppercorn" vessels in your neck that can be lasered. Times of pregnancy or hormone changes can cause these little blebs. Real cobbleing is little tiny blueberries and if they pop (some actually have popped) they bleed like crazy but stop with direct pressure. The thickening is exactly what it sounds like, thickened skin. Just because Hank and/or Geoff have some cobbling and or thickening of the lip or skin doesn't mean your neck is going to thicken. The have extremely aggressive port wine stains that are the highest grade. It is rare to have a neck thicken, it usually occurs in the head and neck area. Limbs can expand from a vascular birthmark but we don't call that "thickening" like we do when referring to the lip or ears or under the chin area or cheek or eye lids. Send a close up picture of your neck to one of our expert docs or make an appointment and have him/her check you out.