+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Implantation metastasis from adenocarcinoma of the sigmoid colon into a perianal fistula: a case report



Implantation metastasis from adenocarcinoma of the sigmoid colon into a perianal fistula: a case report



Annals of Gastroenterology 27(3): 276-279



Implantation metastasis from a colorectal cancer into a perianal fistula is very rare. Such lesions are commonly mistaken as benign perianal abscesses or fistulas and diagnosed only after pathological analysis of surgically excised fistulas. Once diagnosed, the management of this condition remains controversial. We report a case of perianal fistula that was unexpectedly found to harbor adenocarcinoma on biopsy. Further investigation by colonoscopy and computed tomography scan revealed a sigmoid adenocarcinoma. Abdominoperineal resection was performed. Histology and immunohistochemical staining was identical in both primary and metastatic tumors. We herein review the literature on the metastasis of colorectal cancer to a benign perianal fistula presumably acquired through implantation of viable malignant cells shed from the primary tumor and discuss the approach to this rare scenario in colorectal cancer surgery.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 053732826

Download citation: RISBibTeXText

PMID: 24975988


Related references

Implantation metastasis from adenocarcinoma of sigmoid colon into fistula in ano. Journal of the Royal Society of Medicine 85(6): 361, 1992

Implantation metastasis from adenocarcinoma of the colon into a fistula-in-ano: a case report. Canadian Journal of Surgery. Journal Canadien de Chirurgie 48(2): 162-163, 2005

Metachronous metastasis to inguinal lymph nodes from sigmoid colon adenocarcinoma with abdominal wall metastasis: a case report. Bmc Cancer 19(1): 180, 2019

Adenocarcinoma of the sigmoid colon seeding a chronic anal fistula: report of a case. Diseases of the Colon and Rectum 46(6): 835-836, 2003

Adenocarcinoma of the mandible, a metastasis from a primary tumor in the sigmoid colon. Report of a case. Oral Surgery Oral Medicine and Oral Pathology 12: 1228-1234, 1959

A case report of poorly-differentiated adenocarcinoma in sigmoid colon cancer with liver and pulmonary metastasis responding to TS-1 and CPT-11. Gan to Kagaku Ryoho. Cancer and ChemoTherapy 33(1): 109-112, 2006

A Case of Uterine Body Metastasis from Sigmoid Colon Adenocarcinoma. Gan to Kagaku Ryoho. Cancer and ChemoTherapy 44(12): 1853-1855, 2017

Perianal metastasis from a sigmoid carcinoma--objective evidence of a clonal origin. Report of a case. Diseases of the Colon and Rectum 31(1): 68-70, 1988

Synchronous carcinoma of the sigmoid colon and a perianal fistula. Diseases of the Colon and Rectum 47(4): 544-5; Author Reply 545, 2004

Perforated diverticulitis of the sigmoid colon revealed by a perianal fistula. International Journal of Surgery Case Reports 8c: 73-75, 2015

Synchronous perianal metastasis of lung adenocarcinoma: report of a case. Clinics and Research in Hepatology and Gastroenterology 37(6): E143-E144, 2013

A case of sigmoid colon adenocarcinoma diagnosed as facial cutaneous metastasis for survival after operation for 37 months. Clinical Journal of Gastroenterology 10(5): 420-425, 2017

Colloid adenocarcinoma involving the perianal region, anus, rectum or sigmoid colon. American Journal of Surgery 76(6): 642-645, 1948

Aortoenteric fistula to the sigmoid colon-case report. Current Surgery 62(1): 49-54, 2005

Colovesical fistula due to sigmoid colon diverticulitis: a case report. Hinyokika Kiyo. Acta Urologica Japonica 41(3): 231-234, 1995