Annals of coloproctology · 2018
Anal Adenocarcinoma Can Masquerade as Chronic Anal Fistula in Asians.
СтатьяНазвание и аннотация: Перевод в очереди
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Leong Faith Qi-Hui, Chan Dedrick Kok Hong, Tan Ker-Kan
Аннотация
PURPOSE: Perianal adenocarcinoma arising from a chronic anorectal fistula is a rare condition for which the natural history and optimal management are not well established. For that reason, we conducted a retrospective analysis of 5 consecutive patients with a perianal adenocarcinoma arising from a chronic anorectal fistula managed at our institution from January 2014 to December 2015.
METHODS: The patients were identified from a prospectively collected colorectal cancer database that included all patients managed for colorectal cancer at our institution.
RESULTS: The median age at diagnosis was 64 years (range, 55-72 years). Magnetic resonance imaging (MRI) was the initial investigation for all patients and showed a hyperintense T2-weighted image. One patient underwent an abdominoperineal resection following neoadjuvant chemoradiotherapy and remained disease free during the 12-month follow-up. Three patients received neoadjuvant therapy with intent for surgery, but did not undergo surgery due to either worsening health or metastatic spread. One patient declined intervention. The median overall survival was 10.5 months (range, 2-19 months).
CONCLUSION: A high index of suspicion is required to make a clinical diagnosis of an anal adenocarcinoma arising from a chronic fistula. Histologic diagnosis must be achieved to confirm the diagnosis. Multimodal therapy with neoadjuvant chemoradiotherapy followed by abdominoperineal resection is the treatment of choice.
METHODS: The patients were identified from a prospectively collected colorectal cancer database that included all patients managed for colorectal cancer at our institution.
RESULTS: The median age at diagnosis was 64 years (range, 55-72 years). Magnetic resonance imaging (MRI) was the initial investigation for all patients and showed a hyperintense T2-weighted image. One patient underwent an abdominoperineal resection following neoadjuvant chemoradiotherapy and remained disease free during the 12-month follow-up. Three patients received neoadjuvant therapy with intent for surgery, but did not undergo surgery due to either worsening health or metastatic spread. One patient declined intervention. The median overall survival was 10.5 months (range, 2-19 months).
CONCLUSION: A high index of suspicion is required to make a clinical diagnosis of an anal adenocarcinoma arising from a chronic fistula. Histologic diagnosis must be achieved to confirm the diagnosis. Multimodal therapy with neoadjuvant chemoradiotherapy followed by abdominoperineal resection is the treatment of choice.