Understanding an Oval Mass in the Right Armpit: Ultrasound Findings & Next Steps

Question
My mother went to the doctor and and here is what they wrote following an ultrasound.

"Clinical Info: right axillary mass. Additional spot films and ultrasound of the right axillary mass were performed. A sharply circumscribed, oval mass is seen high in the right axillar region. The mass is extremely vascular with a color flow. This is presumed to reflect an enlarged lymph node."

I'm guessing that excisional biopsy would be neccessary. However is there a simpler way to explain what the doctor wrote? What's recommended as treatment and is it considered a cancer? Thank you for any information.

Answer
What is seen is an enlarged lymph node according to the report. Why it is enlarged can not be determined from the report. An easy way to find out if it is due to a malignant process (some kind of cancer including lymphomas) is to do a thin needle aspiration biopsy. If no cancer is found and the biopsy is otherwise inconclusive and it is still necessary or preferable to know why it is enlarged a surgical biopsy would be needed. In this case I do indeed recommend some sort of biopsy, the easiest to do would be the thin needle kind.