分期

如果您被诊断患有肛门癌,则您可能需要接受其他检查,以查明癌细胞是否已发生扩散。这些检查可以帮助医疗护理团队了解您癌症的程度(也称为分期)。癌症分期检查通常包括成像检查。这些检查可能查找淋巴结或身体其他部位是否存在癌症体征。您的医疗团队使用您的癌症分期检查结果来帮助制定您的治疗计划。

肛门癌的分期范围为 1 期到 4 期。最小的数字意味着癌症病灶小并且仅发生在肛管中。较高的分期意味着癌症处于较晚期。治疗方案取决于肛门癌的类型。此外也取决于癌细胞是否局限于肛管,还是已扩散至其他器官。

1 期肛门癌

1 期癌症的部位较小且仍局限于肛门区域。未累及淋巴结。

2 期肛门癌

在 2 期,癌症体积较大,仍主要局限于肛门区域。无淋巴结受累或仅有少量淋巴结受累。

3 期肛门癌

在 3 期,癌症已进展,并可能已转移至淋巴结,或侵犯邻近器官,包括阴道、尿道或膀胱。

4 期肛门癌

4 期癌症已经转移至远处器官。

May 14, 2026

Living with 肛门癌?

Connect with others like you for support and answers to your questions in the Colorectal Cancer support group on Mayo Clinic Connect, a patient community.

Colorectal Cancer Discussions

rosebud14
Looking for a Low anterior resection syndrome (LARS) specialist

10 Replies Mon, Jun 01, 2026

dazlin
Anyone have a positive Cologuard test?

301 Replies Mon, Jun 01, 2026

karina1954
After colon resection: What helps with severe gas?

43 Replies Sun, May 24, 2026

See more discussions
  1. Anal carcinoma. National Comprehensive Cancer Network. https://www.nccn.org/patientresources/patient-resources/guidelines-for-patients/guidelines-for-patients-details?patientGuidelineId=58. Accessed Nov. 17, 2025.
  2. Palliative care. National Comprehensive Cancer Network. https://www.nccn.org/patientresources/patient-resources/guidelines-for-patients/guidelines-for-patients-details?patientGuidelineId=73. Accessed Nov. 17, 2025.
  3. Anal cancer treatment (PDQ)— Health professional version. National Cancer Institute. https://www.cancer.gov/types/anal/hp/anal-treatment-pdq. Accessed Nov. 17, 2025.
  4. Gowin K, et al. Integrative therapies in cancer care: An update on the guidelines. American Society of Clinical Oncology Education Book. 2024; doi:10.1200/EDBK_431554.
  5. American College of Surgeons. Anus: Protocol for cancer staging documentation. In: AJCC Cancer Staging System. American College of Surgeons; 2025. https://www.facs.org/quality-programs/cancer-programs/american-joint-committee-on-cancer/version-9/. Accessed Nov. 18, 2025.
  6. Warner KJ. Allscripts EPSi. Mayo Clinic. May 7, 2019.
  7. Cancer stat facts: Anal cancer. National Cancer Institute (NCI) Surveillance, Epidemiology, and End Results (SEER) Program. https://seer.cancer.gov/statfacts/html/anus.htmlAccessed Dec. 22, 2025.
  8. Morris VK, et al. Systemic therapy for stage I-III anal squamous cell carcinoma: ASCO guideline. Journal of Clinical Oncology. 2025; doi:10.1200/JCO-24-02120. Accessed Nov. 18, 2025.
  9. Willett CG, et al. Clinical presentation, diagnosis, and staging of anal cancer. https://www.uptodate.com/contents/search. Accessed Nov. 18, 2025.
  10. DeVita VT Jr, et al., eds. Cancer of the anal region. In: DeVita, Hellman, and Rosenberg's Cancer: Principles and Practice of Oncology. 12th ed. ProQuest Ebook Central. Wolters Kluwer; 2023. Accessed Nov. 18, 2025.
  11. AskMayoExpert. Anal cancer (adult). Mayo Clinic; 2024.
CON-20198273