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Splenogonadal Fusion Diagnosed by Spleen Scintigraphy

Departments of Nuclear Medicine and Internal Medicine "E," Edith Wolfson Medical Center, Hohn, Israel

Correspondence: For correspondence or reprints contact: Adam Steinmetz, MD, Dept. of Nuclear Medicine, Edith Wolfson Medical Center, P.O. Box 5, Holon 58100, Israel.

ABSTRACT

Splenogonadal fusion (SGF) is a rare congenital malformation characterized by fusion of the spleen and a gonad (almost always the left one) frequently associated with orofacial and/or limb developmental abnormalities. Only 125 cases were reported between 1883 and 1994. This report concerns a case of SGF in a 20-yr-old woman with an accidental finding of a splenic space-occupying lesion protruding into the lower abdomen in ultrasound and CT. Radiocolloid spleen scintigraphy and SPECT proved to be the best procedure to establish the correct diagnosis of SGF. As SGF is often asymptomatic, more liberal use of splenic scintigraphy is suggested in patients with congenital limb and/or orofacial anomalies. SGF should be included among the differential diagnoses of left abdominal, pelvic or scrotal masses.

Key Words: spleen-congenital-anomalies • radionuclide-imaging • splenogonadal fusion • facial abnormalities