Background: Gastrointestinal metastasis from primary breast carcinoma is uncommon, anorectal involvement is extremely rare.
Case Presentation: We present the case of a 65-year old woman who underwent treatment for an infiltrative lobular carcinoma of the left breast with bone metastases and who developed metastasis of the rectum and anal canal 4 years later.
Conclusions: A patient with a history of breast cancer, especially lobular carcinoma, presenting with anorectal symptoms, should raise the suspicion of metastatic disease.