Sonographic and CT features of splenogonadal fusion

Splenogonadal fusion is a rare congenital anomaly characterized by fusion of splenic tissue to the gonad. Although more than 150 cases have been described in the literature, there are only anecdotal reports of the diagnosis of this entity before surgery. Preoperative recognition of this anomaly permits avoidance of radical surgical procedures such as orchiectomy. The radiological literature regarding this condition is scant. We report the imaging findings in a child with splenogonadal fusion, where sonography and contrast-enhanced spiral CT permitted characterization of the lesion and delineation of the vascular supply to the aberrant splenic tissue and the testis.