J Korean Soc Ther Radiol Oncol.  2011 Jun;29(2):121-126. 10.3857/jkstro.2011.29.2.121.

A Bile Duct Cancer Patient Whose Stent Shifted Significantly Over the Course of External Beam Radiotherapy

• Yun HG

• KMID: 1443615
• DOI: http://doi.org/10.3857/jkstro.2011.29.2.121

Abstract

The author reports a bile duct cancer patient whose stent shifted significantly from right to left over the course of radiotherapy. The 80-year-old female patient had a short stature with thoracic kyphosis and mutiple spinal compression fractures. She was also emaciated and very lean. By comparing the weekly scanned computed tomography images, the author found her stent to have shifted by more than 4 cm from right to left over the course of external beam radiotherapy. The results of this case study suggest that for a very lean and emaciated kyphotic bile duct cancer patient, the possibility of large interfractional movement of the bile duct or stent during radiotherapy should be considered.

Keyword

Bile duct; Stent; Interfractional; Movement; Radiotherapy

MeSH Terms

Aged, 80 and over
Bile
Bile Duct Neoplasms
Bile Ducts
Female
Fractures, Compression
Humans
Kyphosis
Stents