Virtual colonoscopy or colonography by computed tomography is a promising technique for screening of colorectal cancer, based
in the evidence that early detection of denomatosous polyps will reduce the range of mortality. Since 1994 it has experienced a
remarkable development with technological advances in software and hardware, which has allowed the obtaining of comparable
images of high quality with conventional colonoscopy. Most of the colorectal cancers are originated from adenomatosous
polyps that are developed and grown slowly during many years. The detection and removal of these lesions could prevent the
development of 95% and more of colonic cancer. The adenomas are divided in three groups: tubular, which represent the 80 -
85% of the adenomatosous polyps, are smaller of 10 mm and they are associated to low degrees of displasia; tubulovellosos,
which represent 15% of the adenomatosous polyps, tend to be greater (> 10 mm) and they are associated to high degrees
of displasia and vellosos, represent less of 5% of the adenomatosous polyps, are generally of great size (2 - 3 cm.) and have
a greater risk of malignancy. Knowing the type of adenoma is the treatment that will be decided to follow.
Keywords:
Colonografía Tomográfica Computarizada, Neoplasias Colorrectales/diagnóstico, Neoplasias del Colon/diagnóstico
Csendes G., P. ., Aldana V., H. ., & Sanhueza S., Álvaro. (2006). Colonoscopía Virtual. Revista Hospital Clínico Universidad De Chile, 17(4), pp. 293–6. https://doi.org/10.5354/2735-7996.2006.78153
