A 25-year-old woman consulted regarding a mass at the front of her neck, above the collarbone. There was also pain and tingling in her right upper arm when she accidentally pressed on the mass. MRI showed a right brachial plexus tumor. The brachial plexus is a large bundle of nerves that arises from the spinal cord and gives rise to the nerves in the upper limbs. 

The patient underwent surgery to remove the tumor. The tumor was reddish in color and was very bloody, and looked different from the usual nerve tumors. The biopsy result was a hemangioma, a benign tumor that came from blood vessels. 

This case shows that aside from nerve tumors, other types of tumors may also cause nerve compression, and it is better to approach them like nerve tumors so that the nerves are protected at the outset. The patient did very well and did not have any weakness or numbness after the surgery.