cyston.<口>=cystoscopycystn.包囊；囊肿pref.表示“囊、胞”cystal structure晶体结构cystidoceliotomy剖腹膀胱切开术cystoproctostomy膀胱直肠造口吻合术cystitis cystica囊性膀胱炎cysteine residue半胱氨酸残基cystojejunostomy囊肿空肠吻合引流术Cystobacteraceae孢囊杆菌科cystoureterogram膀胱输尿管照片cystine calculus胱氨酸结石cysteinylglycine半胱氨酰甘氨酸