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Hack, W.W.M. (author), Sijstermans, K. (author), van der Voort-Doedens, L.M. (author), Meijer, R.W. (author), Heij, H.A. (author), Delemarre-van de Waal, H.A. (author), Pierik, F.H. (author), TNO Kwaliteit van Leven (author)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...article 2008
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Goede, J. (author), Pierik, F.H. (author), Hack, W.W.M. (author), Algra, P.R. (author), TNO Bouw en Ondergrond (author)In three boys aged 15, 9, and 10 years respectively scrotal ultrasound revealed testicular microlithiasis (TM). Two boys were free of symptoms and one suffered from testicular pain. TM is characterized by multiple echogenic foci within the seminiferous tubules with no acoustic shadowing. The pathophysiology is largely unknown. In adult men, TM...article 2008
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Aendekerk, R.P.P. (author), van Leerdam, F.J.M. (author), Hirasing, R.A. (author)For non-scrotal testes a distinction can be made between retractile testes (completely descended and normally developed but sometimes situated subcutaneously in the groin area), retained testes (testes cannot be brought into the scrotum or this can only be achieved using light manual pressure) and ectopic testes (lying outside of the descent...article 2002