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Organ-preserving multimodality management of squamous cell carcinoma of anal canal

Date: 4.1.2011 

Authors: S V Deo, N K Shukla, V Raina, B K Mohanti, Rajeev Sharan, Madhabananda Kar, G K Rath

AIM: To study the efficacy of an organ-preserving, sequential chemoradiation therapy for squamous cell carcinoma of the anal canal, and of salvage surgery in those in whom this treatment fails. METHODS: Forty biopsy-proven untreated patients (28 men) with squamous cell carcinoma of the anal canal received two cycles of chemotherapy using cisplatin and methotrexate, followed by 45 to 60 (median 50) Gy external beam radiotherapy. Salvage surgery was offered to those in whom this treatment failed. Overall survival, disease-free survival and colostomy-free survival were analyzed. RESULTS: Most patients (n=35; 87%) had T3 or T4 lesions and 5 (12.5%) had involvement of inguinal nodes. Thirty-one patients (77.5%) had complete response after chemoradiation. Only three patients (7.5%) developed chemotherapy-related grade 3 mucositis and myelosuppression. Radiotherapy-related toxicity included grade III cystitis in one patient and grade III proctitis in three patients. Three patients had post-treatment anal stenosis requiring repeated dilatation and two had chronic non-healing ulcers at the anal verge. Nine patients had failure of chemoradiation or disease recurrence; of these, only 5 could undergo salvage surgery. After a median follow up of 60 months, overall survival, disease-free survival and colostomy-free survival were 80%, 77.5% and 72.5%, respectively. CONCLUSION: Chemoradiation is effective in the treatment of squamous cell anal cancer and has acceptable toxicity. Surgical salvage may be useful in those with failure of this treatment.

Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology. 24(5):201-4.
ISSN: 0254-8860

 

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