Case 64:   Hamartoma, mesenchymal

Diagnostic Categories:

Clinical Presentation:

10 month old boy with an incidentally discovered abdominal mass on a well-child check-up.

CT: Typical, cystic with septations

Imaging Findings:

Large multilobulated complex cystic mass in the right aspect of the abdomen, extending across midline to the left side along mid abdomen. There are numerous internal septations, which are better appreciated on prior ultrasound. The superior portion of the mass interfaces with the mid portion of the liver less distinctly, indicating hepatic origin.