A 68-year-old patient presented a long, type C coronary dissection after balloon angioplasty of a focal lesion in a distal marginal branch. Due to the small vessel size the dissection was left untreated. At angiographic follow-up the dissection had completely disappeared, but a localised restenosis was found in the proximal vessel. Optical coherence tomography (OCT) confirmed the complete healing of the dissection and revealed a normal vessel wall (restitutio ad integrum). This technique also provided unique insights into the underlying substrate of the proximal restenosis unravelling a complicated plaque with associated thrombus.