title: Kaposi sarcoma of the penis in an HIV-negative patient.
abstract: BACKGROUND
  The penis is an unusual site of presentation for Kaposi sarcoma, especially in immunocompetent patients.
  
  
  METHODS
  A 52-year-old human immunodeficiency virus (HIV)-seronegative man presented with a reddish, 8 mm in diameter nodule on the glans penis near the coronal sulcus. Histopathology after excision of the lesion was consistent with Kaposi sarcoma. No other cutaneous or mucosal manifestations were present. After a follow-up period of 2 years, no recurrence was observed.
  
  
  CONCLUSIONS
  This unusual case suggests that Kaposi sarcoma should be considered in the differential diagnosis of macular, papular, and nodular lesions involving the penis.
authors.affiliation: Department of Dermatology, Pistoia Hospital, Pistoia, Italy. r.cecchi@usl3.toscana.it
authors.forename: Roberto
authors.initials: R
authors.lastname: Cecchi
authors.forename: Michela
authors.initials: M
authors.lastname: Troiano
authors.forename: Maurizia
authors.initials: M
authors.lastname: Ghilardi
authors.forename: Laura
authors.initials: L
authors.lastname: Bartoli
mesh_terms: D003937:Diagnosis, Differential; D018023:HIV Seronegativity; D006801:Humans; D008297:Male; D008875:Middle Aged; D010412:Penile Neoplasms / Q000473:pathology* / Q000601:surgery; D012514:Sarcoma, Kaposi / Q000473:pathology* / Q000601:surgery; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery