胃ポリープの経過観察

Follow-up Study of Gastric Polyp

　胃ポリープの癌化と治療法については，古くから問題にされていたにもかかわらず，胃ポリープのnatural historyを論じた報告は，近年まで皆無に等しかった．しかし最近胃ポリープの多数を経過観察した報告がされるようになり，本症に関する常識は徐々に書き変えられつつある．

　著者らも胃ポリープは原則として経過観察しているが，癌化していないにもかかわらず，大きさや形の変化する例を若干経験したので，今回，これら症例を中心に胃ポリープのfollow-up成績を報告する．

　Sixty cases of gastric polyp (or polyps), proved by biopsy, were followed up for 6 months to 7 years and 3 months.

　Obvious change in its size and shape was noted in 12 cases, though no carcinomatous transformation was established in them. In one case a typical red sessile polyp grew up at a site, where there was only a tiny red spot 4 months before. In 6 cases polyps enlarged and in 4 they became smaller. The gross change was noted more frequent in red polyps and in patients, followed up for more than 3 years and whose age had been 50 years or older at the first examination.

　Several typical cases are presented as well as another one, in which a pedunculated polyp, though not biopsied, disappeared during the 5-year-follow-up period.