Chromosome banding pattern in human colonic polyps

Discouraging colonic polyps.

Karyotype Analysis and Chromosome Banding

Nearly all methods of chromosome banding rely on harvesting chromosomes in mitosis. This is usually achieved by treating cells with tubulin inhibitors, such as colchicine or demecolcine (colcemid), that depolymerize the mitotic spindle and so arrest the cell at this stage. Excessively long incubations with Colcemid result in overcondensed chromosomes that band poorly and moreover some cell type...

Computer-assisted pit-pattern classification in different wavelet domains for supporting dignity assessment of colonic polyps

In this paper, we show that zoom-endoscopy images can be well classified according to the pit-pattern classification scheme by using texture-analysis methods in different wavelet domains. We base our approach on three different variants of the wavelet transform and propose that the color-channels of the RGB and LAB color model are an important source for computing image features with high discr...

Contrast-Enhanced Ultrasound Defines Vascularization Pattern of Hamartomatous Colonic Polyps in Peutz-Jeghers Syndrome

The hamartomatous polyps in Peutz-Jeghers syndrome may have malignant potential. To differentiate between hamartomatous and adenomas polyps, vascular characterization can be assessed using noninvasive procedures, such as contrast-enhanced ultrasound (CEUS). The neo-angiogenic characteristics of colorectal adenomas and carcinomas are expressed as an anarchic vascular pattern observed on CEUS. Us...

Endoscopic resection of colonic polyps – A review

Endoscopic polypectomy has become standard care for the treatment of colonic polyps. While about 90% of polyps are small in size and easy to resect, a small percentage of polyps are of large size (>2 cm) and broad base and endoscopic resection is a real challenge for the endoscopist. An appropriate technique for safe removal of these large colorectal polyps has been developed and includes submu...