Review of the world literature reveals only around 90 cases to which we are adding a report of two cases that tumors arising in the posterior cervical triangle and axillary regions.

• 回顾世界文献大约有90个病例报告，在此增加二例，分别位于后颈部与腋下。其中一位病例手术前怀疑是一恶性肿瘤。