Department of Endocrinology, Royal Victoria Infirmary, and University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom. a.a.syed@ncl.ac.uk
Congenital radioulnar synostosis is a rare skeletal defect associated with certain chromosomal abnormalities. We describe the first report of its occurrence in association with a pseudodicentric Y chromosome in a 27-year-old man with azoospermia and testicular dysfunction.