Curbside Consultation in GI Cancer for the Gastroenterologist: 49 Clinical Questions

Douglas G. Adler, MD

Question 46: What Is The Role Of Endorectal Ultrasound In Patients With Rectal Cancer? Do All Patients With Rectal Cancer Need To Have An Endorectal Ultrasound? (continued)

Leyla J. Ghazi, MD; David A. Schwartz, MD

Transrectal endosonography (EUS) has emerged as a critical imaging modality for pre-treatment staging of rectal cancer. The role of EUS has further expanded with the introduction of EUS-guided fine-needle aspiration (FNA) of intramural and extramural lesions, as well as extra-luminal abnormalities. EUS staging of rectal cancers is performed in an effort to identify the subgroup of patients who may benefit from preoperative chemoradiotherapy prior to operative intervention. The advantage of preoperative treatment is to downsize the tumor in an attempt to facilitate sphincter preservation…