Can transrectal ultrasound-guided core needle biopsy serve as an accurate diagnostic tool for rectal lesions?

Dong Hoon Baek, Gwang Ha Kim


Colorectal cancer (CRC) is one of the most common cancers and the leading cause of cancer-related deaths worldwide. The widespread use of colonoscopy in recent times has improved the CRC detection rate; approximately 70% of CRCs involves the colon and 30% affects the rectum (1). Endoscopic or surgical resection is essential for confirmation of submucosal (SM) invasion following the diagnosis of rectal cancer.