(A) The two tumours at the end of the ascending and transverse colon are indicated by the arrows. (A) The two tumours at the end of the ascending and transverse.

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Presentation transcript:

(A) The two tumours at the end of the ascending and transverse colon are indicated by the arrows. (A) The two tumours at the end of the ascending and transverse colon are indicated by the arrows. (B) In the transverse section of the transverse colon, the whitish demarcated tumour protruded from the serosa on the left, whereas the intestinal lumen and wall appeared intact in the upper right portion. (C) Low (original magnification, ×40) and (D) high (original magnification, ×600) power fields of the tumour (haematoxylin and eosin staining). In (C) the tumour and normal intestine are seen to the left and right, respectively. In (D) it can be seen that the tumour was composed mostly of eosinophils. The tumour cells are stained positively for (E) major basic protein (original magnification, ×40, left hand side) in (F) the cytosol (original magnification, ×600). K Uemura et al. J Clin Pathol 2004;57:541-543 Copyright © by the BMJ Publishing Group Ltd & Association of Clinical Pathologists. All rights reserved.