الفهرس 
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Abstract
Undescended testis (UDT) is the commonest congenital abnormality of
the genitourinary system in young boys. Approximately 1-2% of boys at
the age of 1 year have an UDT, the disorder being unilateral in about 90%
of cases and bilateral in about 10%, depending on the clinical series.
About 20% of UDTs are nonpalpable. The testis may be located in the
abdomen in some boys, but it might have been pushedinto the upper
inguinal canal: this disorder is termed ‘peeping testis ’.
In about half of the cases of nonpalpable testis (NPT), a testis is located
in the abdominal cavity; the remainder are atrophicor vanishing, either
secondary to an antenatal torsion in utero or agenesis.
Despite 15 years of international research on the topic, there are no
guidelines on the management of boys with NPT. The management of
boys with this disorder is still controversial, thestandard Stephen Fowler
technique is done on two stages, but it is found that the two stage Stephen
Fowler orchidopexy has the same successful results of the single stage
Stephen fowler (Poppas et al, 1996).
In this study we aim to summarize the current evidence that is available
on the topic and provide the results of the StephenFowler technique in
single stage orchidopexy