Retrorectal tumor: is biopsy risky?

Area of Science:

• Oncology
• Surgical Pathology
• Medical Ethics

Background:

• Retrorectal tumors present diagnostic and therapeutic challenges.
• Biopsy techniques for retrorectal tumors are not standardized.
• Patient outcomes following retrorectal tumor biopsy are sparsely documented.

Observation:

• A 55-year-old male experienced a fatal outcome post-transrectal needle biopsy for an extensive retrorectal tumor.
• Computed tomography (CT) scan and sigmoidoscopy findings can indicate tumor necrosis.
• The transrectal approach may be contraindicated in cases of suspected tumor necrosis.

Findings:

• The indications and methodologies for retrorectal tumor biopsy remain controversial.
• Biopsy is warranted when tumor resection is unlikely or high-risk, or for neoplasms amenable to nonsurgical treatment.
• Prophylactic antibiotics with broad aerobic and anaerobic coverage are recommended.

Implications:

• This case highlights the critical need for refined guidelines on retrorectal tumor biopsy.
• Avoiding transrectal biopsy in suspected necrotic tumors may prevent adverse events.
• Further research is needed to establish optimal biopsy strategies for retrorectal neoplasms.