Colon cancer

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Upper Gastrointestinal Tract Endoscopic Ultrasound

Endoscopic ultrasound (EUS) is the combination of ultrasound and endoscopy, which allows placement of high-frequency transducers close to the intestinal wall and adjacent structures. As EUS enters its third decade, it is used for locoregional staging of many upper gastrointestinal malignancies, including cancers of the oesophagus, stomach, duodenum, ampulla of Vater, extrahepatic bile ducts and…

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Contrast Harmonic Imaging (CHI)

Case 1 50-year-old male with a colorectal cancer. Greyscale imaging clearly shows the lesion, as an echogenic 3 cm mass (Fig.l a), which must be considered as suspicious for a metastasis from his colorectal cancer but benefit of the doubt must be given. Colour Doppler (Fig. 1b) is not helpful. At 33 seconds after SonoVue injection (early sinusoidal phase), Vascular Recognition Imaging (VRI)…

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Virtual Coloscopy

Increasingly more importance is being ascribed to early detection of colon carcinoma and of its precursor stages, since there has been a practically twofold increase in the incidence of this disease in Germany over the past 20 years. With a combination of 1. case history, 2. rectal palpation result, 3.'blood in stools' test (haemoccult) and 4. coloscopy, many conspicuous changes to the intestinal…

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