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Cancer - Principles & Practice of Oncology
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CHAP37
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F5_1.CAP
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1999-06-07
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916b
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FIGURE 37.5-1. Various imaging techniques to demonstrate
characteristics of gastrinoma and finding at laparotomy in a patient
with a large lymph node mass between the inferior vena cava and
posterior to the duodenum. (A) An ultrasound shows a hypoechoic mass
relative to the surrounding background tissue. (B) A CT with contrast
shows the anatomic position of this lymph node just anterior to the
inferior vena cava and just posterior to the duodenum. This is a very
typical position for peripancreatic and periduodenal metastatic
gastrinoma to lymph nodes. (C) MRI scan. A STIR image shows bright
white lesion, which is characteristic for neuroendocrine tumors. (D)
Intraoperative photograph of the enlarged tumor mass being dissected
free from behind the gall bladder. The red-brown appearance of the
tumor is characteristic of neuroendocrine lesions.