例1 男,67岁。因颈部肿物一年余,呈缓慢进行性增大,于1994年12月就诊。查体:一般情况好。颈背交界处有一6×6cm肿物,稍活动,无红肿热痛,边界清楚,与周围组织无明显粘连,因疑为肉瘤而切除送检。病理检查:肿物呈扁圆形,大小5×4.5×3cm,包膜完整,质中,切面黄色,间有灰白色及胶冻样区域。镜检:由成熟的脂肪细胞和形态一致的梭形细胞相 Example 1 Male, 67 years old. Since the neck mass was more than a year old, it slowly and progressively increased. He was referred to in December 1994. Physical examination: Generally good. There was a 6×6cm tumor at the nape of the neck, which was slightly active, with no swelling and thermal pain. The boundary was clear, and there was no obvious adhesion with the surrounding tissue. The suspected sarcoma was removed for examination. Pathological examination: The tumor was oblate and its size was 5×4.5×3cm. The capsule was complete, the mass was medium, the section was yellow, and there was an off-white and jelly-like area. Microscopy: Mature fat cells and morphological spindle cells