The bx of the skin lesion was benign. What does the abbreviation bx stand for?

A. Bactroban C. Basal cell carcinoma
B. Biopsy D. Burn xeroderma

http://www.medterms.com/script/main/art.asp?articlekey=33828

The abbreviation "bx" stands for "biopsy." A biopsy is a medical procedure where a sample of tissue or cells is taken from a person's body to be examined under a microscope. In the context of the statement, "The bx of the skin lesion was benign," it means that after performing a biopsy on the skin lesion (taking a sample of the skin for examination), the results showed that the lesion was found to be benign, which means it was not cancerous or harmful.