[Testicular appendix torsion can mimic a tumour of the paratesticular tissues].

The authors present a case of testicular appendix torsion that mimicked a tumour of the paratesticular tissues due its calm clinical course, objective palpation and ultrasound finding. The torsion of the big testicular appendix was found during surgery from an inguinal approach. The histological examination confirmed only minimal inflammation changes and excluded tumour disease.