title: Atypical phimosis secondary to a preputial metastasis from rectal carcinoma.
abstract: BACKGROUND
  Cutaneous metastases from colorectal cancer are uncommon, accounting for 6.5% of all secondary skin lesions. They occur in advanced disease. The most common site is the abdomen. The penis is a rare site.
  
  
  METHODS
  We report the case of a 79-year-old patient who presented, two years after rectocolectomy for a rectal adenocarcinoma, obstructive renal failure secondary to a presacral recurrence, as well as symptomatic phimosis associated with papulonodules invading the penis, scrotum and pubis. After hemodialysis, percutaneous pyelostomy, and double-J catheter placement, the patient underwent circumcision and a pubic skin biopsy. On histology and immunohistochemistry, a cutaneous metastasis originating from the rectal adenocarcinoma was diagnosed.
  
  
  CONCLUSIONS
  Penile invasion by colorectal cancer revealed by phimosis is a rare occurrence but needs to be recognized and promptly diagnosed by biopsy in order to propose appropriate adjuvant therapy. These rare lesions can occur without any liver or lung involvement.
authors.affiliation: Department of Urology, Centre Hospitalierde Valence, Valence, France. mcgoris @ gmail.com
authors.forename: Maximilien C
authors.initials: MC
authors.lastname: Goris Gbenou
authors.forename: Tawfik
authors.initials: T
authors.lastname: Wahidy
authors.forename: Karine
authors.initials: K
authors.lastname: Llinares
authors.forename: Dominique
authors.initials: D
authors.lastname: Cracco
authors.forename: Alain
authors.initials: A
authors.lastname: Perrot
authors.forename: Dominique
authors.initials: D
authors.lastname: Riquet