男性,48岁,背部肿块3cm×4cm,质软,分叶状。边界不太清楚,与皮肤有些粘连,活动度小,无压痛,皮肤无红肿。最可能的诊断是()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧