In keeping with the patient's history of splenectomy after splenic injury, these lesions result from seeding of the peritoneal cavity with splenic tissue; splenosis. 

Regarding the cystic pancreatic lesion, the diagnosis of pancreatic pseudocyst was preffered in context with pancreatic tail atrophy and previous abdominal trauma , however, no clear history of pancreatitis was obtained, further work up was advised to confirm the diagnosis and rule out other differentials ( cystic lesions of the pancreas ).