Original Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 14, 2012; 18(30): 3955-3961
Published online Aug 14, 2012. doi: 10.3748/wjg.v18.i30.3955
Figure 1
Figure 1 Photomicrographs (40 ×) of hematoxylin and eosin-stained and terminal deoxynucleotide transferase-mediated dUTP nick-end label-stained sections of cholangiocarcinoma tissues cultured on collagen gel sponges for 4 d in the absence or presence of 5-fluorouracil. Tumor cells with anaplastic characteristics showing hyperchromatic nuclei/cytoplasm are indicated with short arrows. Cells with eosinophilic cytoplasm with shrunken (condensed) nuclei (pyknotic nuclei) and fragmented nuclei (karyorrhexis) are indicated with long arrows. 5-FU: 5-fluorouracil; HE: Hematoxylin and eosin; TUNEL: Terminal deoxynucleotide transferase-mediated dUTP nick-end label