骶前肿瘤(presacraltumor), 又名直肠后肿瘤(ret rorectaltumor), 是位于骶骨前, 直肠后“潜在”
间隙的肿瘤, 临床上较罕见, 发病率约为1/40000~ 1/60000, 且女性发病率明显高于男性, 达2 …

Study design: Case report. Tailgut Cyst (TC) is a congenital retrorectal tumor that arises from
remnants of the hindgut during embryonic development, whose symptoms may be …