Abdominal splenosis

Case contributed by Dr Ammar Haouimi


Had a splenectomy 20 years ago for a splenic cyst (pathological report not available). Presented with abdominal discomfort. The ultrasound (not shown) revealed small echogenic masses in the left hypochondrium.

Patient Data

Age: 35 years
Gender: Female

There are numerous well-defined intraperitoneal nodules of various size ranging from 10 to 40 mm iso-to slightly hypodense to the liver, located anterior to the left hepatic lobe. The enhanced CT was not performed (the patient refused the IV contrast).

Subsegmental atelectasis in noted in the left lung base.



On MRI these nodules are of low signal on T1, high signal on T2 fat sat with restricted diffusion.

Case Discussion

The CT and MRI features are most consistent with a splenosis.

Abdominal splenosis is seen following abdominal trauma or surgery (e.g. splenectomy as in this case). It results from the seeding of the splenic tissue in the peritoneal cavity which recruits local blood supply. The ectopic splenic foci are typically small and multiple and grow over time to become quite sizable.

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