Answer

From question on page 1372

With an initial diagnosis of pancreatic pseudocyst, transgastric endoscopic ultrasound-guided drainage of the cystic lesion was performed. Amylase level of drained fluid was extremely high (11 370 IU/l), gradually declining to 91 IU/l. Follow-up computed tomography showed a croissant-shaped mass adjacent under the cystic lesion (fig 1). This mass was diagnosed as an accessory spleen on the basis of significant signal decrease as the splenic parenchyma on post-contrast T2-weighted image of superparamagnetic iron oxide-enhanced magnetic resonance …