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Open-Access Journal
From traditional serrated adenoma to tubulovillous adenoma and beyond 
Sangeetha N Kalimuthu, Adeline Chelliah, Runjan Chetty 
World J Gastrointest Oncol 8(12):805-809. Published online Dec 15, 2016. doi: 10.4251/wjgo.v8.i12.805
Role of circulating free DNA in colorectal cancer 
Alexios Matikas, Alexandra Voutsina, Maria Trypaki, Vassilis Georgoulias 
World J Gastrointest Oncol 8(12):810-818. Published online Dec 15, 2016. doi: 10.4251/wjgo.v8.i12.810
Retrospective Study
Signet ring colorectal carcinoma: Do we need to improve the treatment algorithm? 
Anup Sunil Tamhankar, Parag Ingle, Reena Engineer, Munita Bal, Vikas Ostwal, Avanish Saklani 
World J Gastrointest Oncol 8(12):819-825. Published online Dec 15, 2016. doi: 10.4251/wjgo.v8.i12.819
Systematic Reviews
Colon adenoma features and their impact on risk of future advanced adenomas and colorectal cancer 
Audrey H Calderwood, Karen E Lasser, Hemant K Roy 
World J Gastrointest Oncol 8(12):826-834. Published online Dec 15, 2016. doi: 10.4251/wjgo.v8.i12.826
Case Report
Esophageal liposarcoma: Well-differentiated rhabdomyomatous type 
Hisham M Valiuddin, Arianna Barbetta, Benedetto Mungo, Elizabeth A Montgomery, Daniela Molena 
World J Gastrointest Oncol 8(12):835-839. Published online Dec 15, 2016. doi: 10.4251/wjgo.v8.i12.835