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

  • 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 02 01; 65(2): 188
    [PubMed ID: 34784316]

  • Prevalence of High-Grade Anal Dysplasia and Anal Cancer in Veterans Living With HIV and CD4/CD8 Ratio as a Marker For Increased Risk: A Regional Retrospective Cohort Study.
    Sanger CB, Xu Y, Carchman E, Lawson EH, Heise CP, Striker R, Voils CI
    Dis Colon Rectum 2021 07 01; 64(7): 805-811
    [PubMed ID: 34086000]

  • Skilled nursing facility care after colorectal cancer surgery: A call for quality improvement efforts.
    Sanger CB
    Am J Surg 2021 07; 222(1): 18-19
    [PubMed ID: 33579539]

  • CD4/CD8 Ratio as a Novel Marker for Increased Risk of High-Grade Anal Dysplasia and Anal Cancer in HIV+ Patients: A Retrospective Cohort Study.
    Geltzeiler CB, Xu Y, Carchman E, Ghouse Y, Beczkiewicz J, Son J, Voils CI, Striker R
    Dis Colon Rectum 2020 12; 63(12): 1585-1592
    [PubMed ID: 33149020]

All Publications on PubMed