Low-lying rectal cancer with anal canal involvement: abdominoperineal or low anterior resection after neoadjuvant chemoradiotherapy.

Ly Do, MD, Nisar Syed, MD, Ajmel Puthawala, MD, Samar Azawi, MD, Imad Shbeeb, MD, FASCRS Department of Radiation Oncology, University of California Davis, Sacramento, CA Department of Radiation Oncology, Long Beach Memorial Medical Center, Long Beach, CA Department of Radiation Oncology, Long Beach Veteran’s Hospital, Long Beach, CA Department or Surgical Oncology, Long Beach Memorial Medical Center, Long Beach, CA