Intra-abdominal masses, particularly those arising from the liver and spleen, may project into the lower part of the chest and thus necessitate an extensive diagnostic work-up. The use of liver and spleen isotope scans early in the evaluation of such cases will frequently provide the correct diagnosis and save significant time and cost.
Gonzalez G. Isotope Scanning for Diagnosing Lesions Projecting Into the Lower Chest. JAMA. 1971;218(4):590-592. doi:10.1001/jama.1971.03190170068020