Gallbladder Removal St. Peters - Benrus Surgical Associates We specialize in general, breast and colorectal surgery, including appendicitis, biopsy, colectomy, colon cancer & colon disease, hernia repair, gallbladder disease & removal, anal fissure & anal fistula, GERD (gastroesophageal reflux), skin cancer surgeries, including melanoma, and breast cancer surgeries including fibrocystic disease, sentinel lymph node, and biopsy. Call for an appointment today.