Stage IIIA anal cancer presents clinically as stage II in most instances and is determined to be IIIA by clinically evident perirectal nodal disease or adjacent organ involvement. Endorectal or endoanal ultrasound may aid in pretreatment staging.
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As shown in the RTOG-8314 trial, treatment used is the same as for stage I and II disease, including the use of radiation therapy plus chemotherapy.[1,2]
Radical resection is reserved for continued residual or recurrent cancer in the anal canal after nonoperative therapy.
Current Clinical Trials
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with stage IIIA anal cancer. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.
General information about clinical trials is also available from the NCI Web site.
Sischy B, Doggett RL, Krall JM, et al.: Definitive irradiation and chemotherapy for radiosensitization in management of anal carcinoma: interim report on Radiation Therapy Oncology Group study no. 8314. J Natl Cancer Inst 81 (11): 850-6, 1989.
Flam M, John M, Pajak TF, et al.: Role of mitomycin in combination with fluorouracil and radiotherapy, and of salvage chemoradiation in the definitive nonsurgical treatment of epidermoid carcinoma of the anal canal: results of a phase III randomized intergroup study. J Clin Oncol 14 (9): 2527-39, 1996.
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WebMD Public Information from the National Cancer Institute
September 04, 2014
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