间叶组织分布于全身各处,但良性间叶瘤较少见。我院遇到一例报告如下:患者女性,20岁。颈后包块逐渐增大已17年。缘于3岁时发现颈后有一乒乓球大小包块,无不适,以后随年龄渐增大,现已影响劳动,要求手术。检查:颈后右侧有一15×20×25厘米大小肿块,表皮颜色正常,肿块周围无血管充盈。质硬,尤以右侧明显,表面尚光滑。有一定活动度,无压痛,无搏动。吞咽、呼 Interlobular tissue is distributed throughout the body, but benign mesothelioma is rare. Our hospital encountered a case report as follows: The patient female is 20 years old. The neck mass has gradually increased for 17 years. Due to the fact that at the age of 3, it was found that there was a table tennis bolus behind the neck and no discomfort. Afterwards, it increased with age. Now it has affected labor and requires surgery. Check: There is a 15×20×25 cm lump on the right side of the neck. The color of the epidermis is normal and there is no blood vessel filling around the lump. Hard, especially on the right side, the surface is still smooth. There is a certain degree of activity, no tenderness, no pulsation. Swallow, call