患者男性,54岁。半年前洗牙时偶然发现左舌底肿物,无不适,说话及吞咽无影响。专科检查:口内左侧舌底见一椭圆形肿物,大小2 cm×1 cm×1 cm,界清,活动度可,质中偏软,与表面黏膜无粘连,表面无红肿破溃,无明显触痛。病理检查送检标本1·5 cm×1·2 cm大小。镜检:肿物境界清楚,无包 Male patient, 54 years old. Half a year ago when the teeth were found by accidental left tongue mass, no discomfort, no effect on speech and swallowing. Specialist examination: see an oval tumor on the left side of the mouth, the size of 2 cm × 1 cm × 1 cm, clearance, mobility can be, soft in the medium, with no adhesion to the surface mucosa, ulcerated surface rupture, no Clear tenderness Pathological examination submission specimens 1.5 cm × 1.2 cm in size. Microscopic examination: clear tumor, no package