An<unk>  is a small nodule of splenic tissue found in some people in the neighborhood of the spleen, and especially in the gastrolienal ligament and greater omentum.<unk> s may be isolated or connected to the spleen by thin bands of splenic tissue.  They vary in size from that of a pea to that of a plum.<unk> s are congenital foci of normal splenic tissue that are separate from the main body of the spleen. They arise from the failure of fusion of the splenic anlage during the fifth week of fetal life.<unk> s are relatively common and are seen in 10–30% of patients at autopsy.<unk> s are present in 16% of patients undergoing contrast-enhanced abdominal CT. Most frequent location is posteromedial to the spleen (22%).
Accessory spleen
Intrapancreatic accessory spleen
Retroperitoneal fibrosis
IgG deficiency
Supernumerary kidney
Hypogammaglobulinemia
Double inferior vena cava
Persistent left superior vena cava