The infiltration depth of excavated early stomach cancer in special reference to the correlation between the macroscopic appearance and the sm ratio

Conclusion

It may be concluded that the granular unevenness of the excavated area of excavated early cancer was observed frequently in the m depth lesion and in the sm depth lesion in which sm ratio is less than 20%, and the elevation of the whole margin was observed in the sm depth lesion with more than 40% sm ratio. The sm ratio may be with the grade of various macroscopic appearance. However the differentiation of m lesion from sm lesion became difficult when sm ratio is less than 20%, and the depth can not be presumed with macroscopic appearance. The differential diagnosis of early cancer from Borrmann type II advanced cancer when sm ratio became more than 40%, and from early cancer-like advanced cancer when it is 30% seemed to be very important.

If INF can be diagnosed with biopsy specimens, the infiltration depth may be presumed. However, this subject will be investigated further.