PT - JOURNAL ARTICLE AU - G D Stewart AU - S V Bariol AU - K M Grigor AU - D A Tolley TI - A teratoid cyst containing nephrogenic tissue in a woman with a horseshoe kidney AID - 10.1136/jcp.2004.021782 DP - 2005 Aug 01 TA - Journal of Clinical Pathology PG - 876--878 VI - 58 IP - 8 4099 - http://jcp.bmj.com/content/58/8/876.short 4100 - http://jcp.bmj.com/content/58/8/876.full SO - J Clin Pathol2005 Aug 01; 58 AB - A 21 year old woman presenting with flank pain and vomiting was found to have a cystic lesion associated with a horseshoe kidney. The inner aspect of the cyst wall consisted of connective tissue intermingled with colonic-type epithelium. Within the cyst wall there were multiple foci of immature and incompletely differentiated renal elements, together with fragments of urothelium, smooth muscle, bone, and neuroendocrine tissue. No immature renal blastema were found. This lesion is unique and labelled as a teratoid cyst containing nephrogenic tissue.