[Management of superficial rectal cancers]

Area of Science:

• Gastroenterology
• Surgical Oncology
• Colorectal Surgery

Context:

• Superficial rectal cancers (Tis and T1) are increasingly diagnosed due to endoscopic screening.
• These cancers may represent over a third of all rectal cancer diagnoses.
• Accurate pre-operative staging is crucial for treatment decisions.

Purpose:

• To review the diagnostic and therapeutic options for superficial rectal cancers.
• To evaluate local excision as an alternative to radical resection.
• To define criteria for selecting patients suitable for local excision.

Summary:

• Endorectal ultrasound is key for assessing tumor penetration depth.
• Local excision (endoscopic or transanal) offers advantages over radical proctectomy: zero mortality, minimal morbidity, and lower cost.
• Pathologic examination determines the adequacy of local resection; unfavorable factors necessitate completion proctectomy.

Impact:

• Facilitates conservative management of early-stage rectal cancers.
• Reduces patient morbidity and healthcare costs associated with radical surgery.
• Highlights the importance of accurate pathologic assessment for treatment success.