These shapes first lead me to think of some wire used during the growing process or for bracing. However, I see a nub in one photo.......it appears to have a canker disorder from improper pruning and disease set in. Canker can grow in irregular and regular patterns. I find it obvious that the new growth or stress sprouts is coming back in under the cankered areas. The sap flow is rendered useless as the cambium layer is destroyed. I am curious also about frost cracking. In Ohio, what was the weather patterns like a month or more in the spring? Did your temperatures go back and forth? These trees have sensitive barks and buds.