Histology, mapping, and data analysis. A, Sequential ordering of sections within the esophagectomy. B, Digital image of representative hematoxylin and eosin–stained esophageal section 3D. C, Representative eosinophil density as a function of luminal perimeter position for section 3D. D, Eosinophil density map as a function of both luminal perimeter and axial location at 3 eosinophils/hpf or less (blue), 4 to 14 eosinophils/hpf (green), 15 to 19 eosinophils/hpf (pink), and 20 eosinophils/hpf or greater (red).