Cristina B. Sanger, MD, FACS

Associate Professor

  • Division of Colorectal Surgery
(608) 263-4224

  • Administrative Assistant: (608) 263-4224

600 Highland Ave
Madison, WI 53792


  • MD, Medical University of South Carolina
  • General Surgery Residency, Oregon Health and Science University
  • Colon and Rectal Surgery Fellowship, Washington University, Barnes-Jewish Hospital

Clinical Specialties

Dr. Sanger is a fellowship-trained colon and rectal surgeon. She has expertise in the treatment of diseases of the colon, rectum and anus. She treats benign and malignant conditions including colon cancer, rectal cancer, Crohn’s disease, ulcerative colitis, diverticulitis and anorectal conditions. Her practice includes minimally invasive surgical techniques including laparoscopy and transanal minimally invasive surgery.

Recent Publications

  • Analysis of >15 000 Solid Organ Transplant Recipients Reveals Nonanal Genitourinary HPV-related Disease as Highest Risk Predictor for Anal Squamous Intraepithelial Lesions/Anal Cancer.
    Freeman MJ, Yang Q, Cherney-Stafford L, Striker R, Foley DP, Al-Adra DP, Sanger CB
    Transplantation 2024 Feb 22;
    [PubMed ID: 38383963]

  • Monitoring immune recovery on HIV therapy: critical, helpful, or waste of money in the current era?
    Gergen M, Hewitt A, Sanger CB, Striker R
    AIDS 2024 Feb 02;
    [PubMed ID: 38310348]

  • Targeted mesenteric approaches to ileocolic Crohn's disease: A promising operative approach.
    Sanger CB
    Am J Surg 2024 Apr; 230: 14-15
    [PubMed ID: 38104022]

  • A Qualitative Study of Barriers to Anal Cancer Screenings in US Veterans Living with HIV.
    Sanger CB, Kalbfell E, Cherney-Stafford L, Striker R, Alagoz E
    AIDS Patient Care STDS 2023 Sep; 37(9): 436-446
    [PubMed ID: 37713286]

  • ASO Visual Abstract: Duration of Time CD4/CD8 Ratio is Below 0.5 is Associated with Progression to Anal Cancer in Patients with HIV and High-Grade Dysplasia.
    Karim A, Freeman MJ, Yang Q, Leverson G, Cherney-Stafford L, Striker R, Sanger CB
    Ann Surg Oncol 2023 Aug; 30(8): 4746-4747
    [PubMed ID: 37208572]

All Publications on PubMed