Fig. 3From: Sarcomatoid carcinoma presenting as cancers of unknown primary: a clinicopathological portraitCases illustrating sarcomatoid carcinoma of unknown primary with chemotherapy resistance. a PET-CT showing retroperitoneal adenopathy in the para-aortic station and indeterminate abdominal nodules. b PET-CT showing marginal improvement after gemcitabine and docetaxel. c PET-CT showing progression of disease of left upper quadrant massBack to article page