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外阴癌的原发癌灶横径超过7cm或纵径大于10cm，经广泛切除外阴癌灶包括周边正常组织后，会阴创面难以修复，强行缝合会在短期内致伤口裂开。有的学者用阔筋膜张肌（musculustensorfasclallatae）的肌皮瓣覆盖伤口，亦有学者主张仅对创面电凝止血而不缝合，等待缺损面疤痕形成。
Vulvar carcinoma of the primary foci of more than 7cm in diameter or longitudinal diameter greater than 10cm, after extensive excision of vulvar foci including the surrounding normal tissue, perineal wound is difficult to repair, forcing suture in the short term caused by wound dehiscence. Some scholars use the muscular flap of the musculustensorfasclallatae to cover the wound. Some scholars also advocate that only hemostasis should be done on the wound without coagulation, waiting for the formation of scars on the defect surface.