squamocolumnar junction


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Related to squamocolumnar junction: Transformation Zone

squa·mo·col·um·nar junc·tion

the site of transition from stratified squamous epithelium to columnar epithelium, as at the gastroepophageal junction.

squamocolumnar junction

[skwā′mōkəlum′nər]
a region of transition from stratified squamous epithelium to columnar epithelium in the cervical canal. It is a location where cells are obtained for Papanicolaou's (Pap) smears.
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SQUAMOCOLUMNAR JUNCTION: Squamocolumnar junction of the distal esophagus (seen endoscopically)

squamocolumnar junction

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
References in periodicals archive ?
Follow-up data forms allowed collection of information about postoperative hemorrhage, vaginal discharge and infection, colposcopic findings, squamocolumnar junction location, presence of cervical button (a postsurgical protuberant wound deformity) or stenosis (inability to pass a small cotton-tipped swab into the endocervical canal), and laboratory findings.
02), for the postoperative squamocolumnar junction being more proximally positioned P=.
Overall, the postoperative squamocolumnar junction was located at an ectocervical position for 39% of women, at the cervical os for 42% of women, and within the endocervical canal for 19% of women.
Cervicography may be of limited value for women whose squamocolumnar junction is located within the endocervical canal (elderly or post-treatment women).
First, most subjects were young nulliparous women in whom the squamocolumnar junction is usually located on the ectocervix and therefore easily visualized.
An adequate examination, which included the ability to see the entire squamocolumnar junction, the transformation zone, and all the borders of any lesion was completed for all but 18 patients (9%).
5 Colposcopic adequacy Squamocolumnar junction well seen 108 54 Squamocolumnar junction not seen 9 4.