[Perineal nodular induration]

Ned Tijdschr Geneeskd. 2009:153:A58.
[Article in Dutch]


A 33-year-old man visited the outpatient department of the authors of this article with a large perineal mass. The patient was an active amateur racing cyclist. At physical examination the swelling resembled an accessory scrotum. Ultrasonography revealed a subcutaneous thickening but no intrascrotal abnormalities. Because of progressive symptoms the perineal tumour was surgically excised. Histopathologic examination revealed cell deficient and degenerative connective tissue. The tissue possibly contained a bursa. The tumour was diagnosed as perineal nodular induration, a rare lesion. These nodules almost invariably affect keen cyclists after sustained cycling. Recognition of perineal nodular induration is of particular interest to general practitioners, urologists and specialists in sports medicine.

Publication types

  • Case Reports
  • English Abstract

MeSH terms

  • Adult
  • Athletic Injuries / diagnosis*
  • Athletic Injuries / pathology
  • Athletic Injuries / surgery
  • Bicycling* / injuries
  • Humans
  • Male
  • Perineum / injuries*
  • Perineum / pathology
  • Perineum / surgery
  • Pressure / adverse effects*
  • Scrotum / injuries*
  • Scrotum / pathology
  • Scrotum / surgery