Presentation
Left upper quadrant mass.
Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
From the case:
Hydatid cyst of the spleen
Axial non-contrast

CT demonstrates a very large cystic mass in the spleen with peripheral calcification. Incidental gallstone.
Case Discussion
CT demonstrates a very large cystic mass in the spleen with peripheral calcification. Features are consistent with a hydatid cyst.