Ectopic splenic tissue connected or not to the eutopic spleen observed near the testicular parenchyma.
Until now about 200 cases have been reported (Nistal et al. 2017). The majority were observed in orchiopexy or surgery for inguinal hernia repair. Only a minority of cases were suspected before surgery. Unfrequently, splenogonadal fusion is associated with germ cell tumors.
The age of patients ranges from new born children to 81 years old.