Cristina B. Sanger, MD, FACS

Assistant 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, 2010
  • General Surgery Residency, Oregon Health and Science University, 2016
  • Colon and Rectal Surgery Fellowship, Washington University, Barnes-Jewish Hospital, 2017

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

  • Treating acute diverticulitis in pre- and post-solid-organ transplant patients: a single-institution cohort study.
    Klos CL, Bath NM, Carchman E, Leverson G, Lawson E, Sanger CB, King R, Heise C
    Colorectal Dis 2023 Mar 21;
    [PubMed ID: 36945080]

  • ASO Author Reflections: Using Objective Markers to Tailor Frequency of Anal Dysplasia Treatments in People Living with HIV.
    Sanger CB, Striker R
    Ann Surg Oncol 2023 Mar 07;
    [PubMed ID: 36881279]

  • 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 Mar 04;
    [PubMed ID: 36869915]

  • Do immune inflammatory markers correlate with anal dysplasia and anal cancer risk in patients living with HIV?
    Stem J, Yang Q, Carchman E, Striker R, Sanger CB
    Int J Colorectal Dis 2022 May; 37(5): 983-988
    [PubMed ID: 35332364]

  • Research Perspective on Prognostic Significance of Lymphocyte-to-Monocyte and Platelet-to-Lymphocyte Ratio in Rectal Cancer: A Systematic Review, Meta-analysis, and Meta-regression.
    Sanger CB
    Dis Colon Rectum 2022 Feb 01; 65(2): 188
    [PubMed ID: 34784316]

All Publications on PubMed