Table 1-1.

Principles of description

Clinical findings (c)	Endoscopic treatment findings (e)	Surgical findings (s)	Pathological findings (p)	Final findings (f)
Physical examination Diagnostic imaging Xray, Endoscopy (NBI magnification, Iodine staining, EUS etc.), CT, MRI, PET etc. Biopsy and Cytology Biochemical and Biological examinations Others (genetic studies etc.)	Operative findings Macroscopic examination of the resected specimens	Operative findings Intraoperative diagnostic imaging Frozen sections Macroscopic examination of the resected specimens	Pathological examination of materials obtained by surgical or endoscopic resection	Comprehensive findings based on clinical, surgical and pathological findings Note

Note: In cases in which any findings are modified by combined treatment, findings should be recorded as the estimated most advanced condition throughout the treatment

Tracheal invasion was observed from clinical findings; cT4, cN2, cM0, cStage IVa

As the tumor responded to chemoradiotherapy, surgery was performed; CRT-sT3, sN2, sM0, sStage III

Although the tumor completely responded to chemoradiotherapy on pathological findings, metastasis to Group 3 lymph nodes was observed; CRT-pT0 (T3), pN3, sM0, pStage III

Final findings; (f) T4, (f) N3, (f) M0, (f) Stage IVa