十二指腸 じゅうにしちょう潰瘍 かいようじゃありません
ijūni shi chōkaiyōjārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 胃十二指腸潰瘍

1. It is not a gastric and duodenal ulcer.

Negative
Polite
Terminal Form