title: [Undescended testis: current views and advice for treatment].
abstract: --Undescended testis (UDT) is one of the most common urogenital abnormalities in boys. --UDT is defined as a testis which cannot be brought into a stable scrotal position. --At present, congenital and acquired forms of UDT are recognised. Congenital UDT is defined as a UDT which has never descended from birth. Acquired UDT is defined as a UDT which has been fully descended in the past. --Congenital UDT should be treated surgically between 6 to 12 months of age. --The treatment of acquired UDT is still disputed. As yet, awaiting spontaneous descent at early puberty seems to be the most rational treatment. --In the Netherlands, the high number of late orchidopexies is due to surgery for acquired UDT. To reduce this high number, the guidelines of the first development conference on 'non-scrotal testis' dating back to 1986 should be revised on several points.
authors.affiliation: Medisch Centrum Alkmaar, Alkmaar, Afd. Kindergeneeskunde. w.hack@mca.nl
authors.forename: W W M
authors.initials: WW
authors.lastname: Hack
authors.forename: K
authors.initials: K
authors.lastname: Sijstermans
authors.forename: L M
authors.initials: LM
authors.lastname: van der Voort-Doedens
authors.forename: R W
authors.initials: RW
authors.lastname: Meijer
authors.forename: H A
authors.initials: HA
authors.lastname: Heij
authors.forename: H A
authors.initials: HA
authors.lastname: Delemarre-van de Waal
authors.forename: F H
authors.initials: FH
authors.lastname: Pierik
mesh_terms: D000293:Adolescent; D041923:Adolescent Development / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D003456:Cryptorchidism / Q000601:surgery / Q000628:therapy*; D006801:Humans; D007223:Infant; D008297:Male; D011627:Puberty / Q000502:physiology*; D012075:Remission, Spontaneous; D012611:Scrotum / Q000601:surgery; D013737:Testis / Q000254:growth & development*