perirectal abscess 直肠周围脓肿

lysis of perirectal adhesions 直肠周粘连松解术

perirectal tissue 直肠周组织

perirectal cavity [昆] 围直肠腔

perirectal fascia 直肠筋膜

perirectal fistulectomy 直肠周瘘切除术

high perirectal injection 直肠周围高位注射

Rectal and perirectal diseases 直肠及直肠周围疾病

perianal or perirectal abscess 肛痈