sigmoid colon
释义
乙状结肠：直肠上方的收缩和弯曲部分。
例句
1·Dislodging entrapped fecal matter above the sigmoid colon area.
取出包埋粪便以上乙状结肠区。
2·The rectum and sigmoid colon are at the bottom extending to the right.
图下方至右方示示直肠、乙状结肠。
3·Conclusions: Focus of the disease is situated in rectum and sigmoid colon .
结论：溃疡性结肠炎病变主要位于直肠和乙状结肠。
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