1. Angiomatous leiomyoma of the urachus: a rare entity masquerading as extraluminal gastrointestinal stromal tumor;Anand;Urology Annals,2013
2. The urachus: its anatomy, histology and development;Begg;Journal of Anatomy,1930
3. Immunohistochemistry of the gastrointestinal tract, pancreas, bile ducts, gallbladder and liver;Dabbs,2006
4. CDX-2 and HER-3 expression in canine gastric and colorectal adenocarcinomas;Doster;Journal of Comparative Pathology,2011
5. Rare case of benign urachus tumor during pregnancy;Dzhaparidze;Georgian Medical News,2007