Figure 1From: Meiotic prophase I defects in an oligospermic man with Wolf-Hirschhorn syndrome with ring chromosome 4 Histological analysis of testicular tissue from the patient with a ring chromosome 4 and microdeletion of 4p16.3. Testicular tissue demonstrates reduced number of primary spermatocytes and spermatogenic arrest at the primary spermatocyte stage.Back to article page