Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
Related to squamocolumnar junction: Transformation Zone
the site of transition from stratified squamous epithelium to columnar epithelium, as at the gastroepophageal junction.
Farlex Partner Medical Dictionary © Farlex 2012
1. The point in the cervical canal at which the squamous and columnar epithelia meet. As most cervical cancers begin in this area, it is important to obtain cells from this location for the Pap test.
2. The point above the lower esophageal sphincter where the squamous epithelium of the esophagus and the columnar epithelium of the stomach meet.Synonym: transition zone. See: illustration
See also: junction
Medical Dictionary, © 2009 Farlex and Partners