Symptomatic wandering accessory spleen in the pelvis: Sonographic findings

We describe the case of a mobile left lower quadrant mass associated with r ecurrent abdominal pain; at surgical exploration, the mass was found to be an accessory pelvic spleen. Although accessory spleens are present in 10-30 % of individuals, a wandering accessory spleen located in the pelvis is not frequently seen. On sonography, the mass in our patient appeared well-defi ned and homogeneous. Spectral analysis and color Doppler imaging demonstrat ed a normal vascular branching pattern and high diastolic flow due to low r esistance in the vascular bed. The parenchymal resistance index of the mass was similar to that of the native spleen. (C) 1999 John Wiley & Sons, Inc.