Nevus

Synonyms

Genital nevocytic nevus; Nevus of the genital tract

Definition

Nevus is a benign proliferation of melanocytes.

Clinical Features

• Incidence

  Bladder is an exceedingly rare location, with only one case, namely, a cellular blue nevus, reported (Kim et al. 2012). In the prostate 28 cases of blue nevus, the most frequently reported pigmented prostatic lesion, have been described. The incidence of blue nevi in consecutive surgical prostatic specimens and autopsy has been 0.05% and 0.6%, respectively (Dailey and Hameed 2011).

  Nevi on male genitalia are much less frequently encountered than in women.

• Age

  In the bladder the case of cellular blue nevus was described in a 72-year-old woman with a history of breast cancer (Kim et al. 2012).

  The age at the detection of the reported cases of blue nevi of prostate ranged from 20 to 81 years (Dailey and Hameed 2011).

  Genital nevi typically occur in young adults.

• Sex

  Not applicable

• Site

  In the urogenital tract nevi have been described in the...