| 摘要: |
| [摘要] 目的 探讨毛鞘囊肿与表皮样囊肿的临床及超声声像图特点。方法 收集经手术病理证实的44例毛鞘囊肿与276例表皮样囊肿的临床资料及超声声像图结果，比较两者的性别、年龄、病变分布、累及层次、大小、边界、形态、内部回声、后方回声及血流情况。结果 两组病例差异有统计学意义（P<0.05）的包括：（1）年龄，毛鞘囊肿年龄均值（47.56±13.88）岁，表皮样囊肿年龄均值（37.30±19.29）岁；（2）病变分布，位于头皮的毛鞘囊肿31个团块（70.45%），表皮样囊肿7个（2.54%）；（3）团块内部钙化灶：毛鞘囊肿38个团块（86.36%），表皮样囊肿29个（10.51%）；（4）团块内部液性区：毛鞘囊肿40个团块（90.91%），表皮样囊肿20个（7.25%）。而在性别、累及层次、大小、边界、形态、后方回声及血流分级情况方面比较，两组差异无统计学意义（P>0.05）。结论 毛鞘囊肿与表皮样囊肿其超声表现均为好发于皮肤及皮下层的弱回声团块，边界清楚，形态规则，后方回声多有增强，内部及周边常无明显血流信号，但毛鞘囊肿发病年龄稍大，病变常累及头皮，团块内部常伴钙化灶及液性区，掌握这些特点有利于鉴别诊断。 |
| 关键词: 毛鞘囊肿 表皮样囊肿 超声 鉴别 |
| DOI： |
| 投稿时间：2017-09-30修订日期：2017-11-01 |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| Identity of the clinical and ultrasonographic features of trichilemmal cyst and epidermoid cyst |
| zhaomengzhu,qiuli |
| (West China Hospital of Sichuan University) |
| Abstract: |
| [Abstract] Objective: To discuss the characteristics of trichilemmal cyst and epidermoid cyst on clinic and two-dimensional ultrasonography. Methods: Collect 44 cases of trichilemmal cyst and 276 cases of epidermoid cyst confirmed by pathology after surgery, compare the differences of sex, age, distribution, location, size, boundary, morphology, internal echo, posterior echo and blood flow situation between these two groups. Results: Differences between the two groups which were statistically significant (P<0.05) include: (1)Age：the mean age of trichilemmal cyst group was（47.56±13.88y）and the mean age of epidermoid?cyst group was（37.30±19.29y）.(2)Distribution: 31（70.45%）and 7（2.54%）masses of trichilemmal cyst and epidermoid cyst located on scalp respectively.(3)Calcification in the masses: 38（86.36%）masses of trichilemmal cyst and 29（10.51%）masses of epidermoid cyst.(4)Liquify area in the masses: 40（90.91%）masses of trichilemmal cyst and 20（7.25%）masses of epidermoid cyst. However on sex, location, size, boundary, morphology, posterior echo and blood flow situation, difference between the two groups was not statistically significant (P>0.05). Conclusion: trichilemmal cyst and epidermoid cyst were usually weak echo masses on skin and subcutaneous?layer with clear boundary and regular morphology.The posterior echo of these two kinds of masses often enhanced and no blood flow inside or around the masses. But the age of trichilemmal cyst was a little bit older than epidermoid cyst, and most of the masses located on scalp with calcification and liquify area inside. These features were useful for differential diagnosis. |
| Key words: Trichilemmal cyst Epidermoid cyst Ultrasonography Identity |
