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Papers of the Week

2022 Mar 31

Surg Case Rep



Anal fistula metastasis of rectal cancer after neoadjuvant therapy: a case report.


Fukai S, Tsujinaka S, Miyakura Y, Matsuzawa N, Hatsuzawa Y, Maemoto R, Kakizawa N, Rikiyama T
Surg Case Rep. 2022 Mar 31; 8(1):57.
PMID: 35357598.


Anal metastasis of colorectal cancer is very rare and may present synchronously or metachronously, regardless of pre-existing anal diseases. We report a case of anal fistula metastasis after completion of neoadjuvant therapy for rectal cancer, followed by surgical resection of the primary tumor and metastatic lesion.