case_images: PMC3630713_01
case_images: CT scan showing an heterogeneous and low density mass, with peripheral calcifications, measuring 7.4 cm diameter, localized on left hypochondrium
case_images: JMAS-9-29-g001.jpg
case_images: PMC3630713_01_JMAS-9-29-g001.jpg
case_images: F1
case_images: The presumptive diagnosis made by the radiologist was gastrointestinal stromal tumour (GIST) [Figure 1].
case_images: (a) Material that was involving the sponge and constituting a fibrous capsule; (b) The retained sponge discovered after 34 years
case_images: JMAS-9-29-g002.jpg
case_images: PMC3630713_01_JMAS-9-29-g002.jpg
case_images: F2
case_images: After violation of the capsule and drainage of debris, a retained sponge was discovered [Figure 2].