Metastatic mucinous (calcified) adenocarcinoma of the colon
Metaststic colorectal cancer. Ascites and acute renal failure.
Patient has renal failure thus no IV contrast administered.
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Extensive metastatic disease including peritoneal tumour and ascites, but no liver mets. Para-aortic lympadenopathy with punctate calcification as well as left groin nodes and lung lesions that are calcified (arrows).
Mucinous tumours (especially gastro-intestinal) are associated with punctate calcification and this can sometimes be used to identify the primary site. In this case some areas of tumour have calcified, including lung whilst others show no calcification.