What's the difference between a biopsy needle and a puncture needle

Biopsy is a much larger concept, which includes needle biopsy.
In addition, biopsy can also include excision biopsy and excision biopsy, the so-called biopsy is called biophiology, is an important means of diagnosis of disease. If a biopsy is performed with a specialized puncture needle, it is called a puncture biopsy. If a superficial mass is removed directly from the body surface or is removed completely and then sent for pathological examination it is called an excision biopsy or excision biopsy.
No matter what type of biopsy is used, it will eventually be sent to the pathology department for pathology and, if necessary, immunohistochemical tests to determine the nature of the tissue obtained.