The case was male, 32 years old, with a nonobstructive azoospermia diagnosis and an initial 45,X karyotype. We evaluated by classical cytogenetic methods, C and NOR banding, fluorescent in situ hybridization, and polymerase chain reaction investigations. After investigation, we found the following karyotype: 45,X,dic(Y;22)(q11.223;p11.2). This investigation contributes to our understanding of how chromosome rearrangements can influence fertility processes and how important it is to perform a cytogenetic analysis in infertility cases.
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