Fig. 4From: Atypical presentation of colorectal carcinoma with sole multiple osteolytic bone metastases: a case reportHistopathological findings of the left iliac bone (a–d) and the sigmoid colon tumor (e–h). Both the bone and the colon tumor were positive for CK20 and CDX2 immunostaining but negative for CK7 immunostaining. HE hematoxylin and eosinBack to article page