Kolonkarzinom bei Kindern

Imaging

findings of gastrointestinal tract tumors in children and adolescents. An 11-year-old girl was admitted with abdominal pain in the last two days. On physical examination, she had abdominal tenderness. On US, there was a suspicious appearance of intussusception. Contrast-enhanced coronal reformatted CT image shows increased wall thickening at the transverse colon seen as intussusception (arrows) and increased mesenteric density. Segmental colon resection was performed, and the histopathological diagnosis was colon adenocarcinoma

Imaging

findings of gastrointestinal tract tumors in children and adolescents. a–c A 16-year-old girl presented with complaints of fatigue, abdominal pain and diarrhea for the last 6 months. CT examination was performed when a suspicious mass was seen in the liver on US. a–c Contrast-enhanced axial and coronal reformatted CT images show diffuse increased wall thickening at the splenic flexure and transverse colon (arrows). Note the subcapsular metastatic lesion adjacent to the right liver lobe (arrow). Ca-125 level was found to be high (234 U/mL, normal range 0–35 U/mL). The patient was operated and the histopathological diagnosis was colon mucinous adenocarcinoma

Imaging

findings of gastrointestinal tract tumors in children and adolescents. a, b A 14-year-old girl with colon adenocarcinoma. She had blood in her stool and tenesmus for the last 1 month. Hb level was 6.3 gr/dL (normal range 11.7–15.5 gr/dL), Ca 19–9: 539 U/mL (normal range 0–35 U/mL), CeA: 207 ng/mL (normal range 0–7 ng/mL). US showed multiple lesions in the liver with hypoechoic halo. a Axial fat-saturated T2-weighted MRI demonstrates increased wall thickening at the sigmoid and rectal colon (arrows). b Axial fat-saturated T2-weighted MRI shows mild hyperintense liver metastases (arrows). She was operated

Imaging

findings of gastrointestinal tract tumors in children and adolescents. a, b A 14-year-old boy with colon mucinous adenocarcinoma. He had back pain and loss of appetite for the last 1.5 months. His father and uncle had colon carcinoma. a Axial fat-saturated T2-weighted image demonstrates diffuse increased wall thickening at the sigmoid colon (arrows). b Post-contrast T1-weighted image shows hypoenhancing liver metastases

Imaging

findings of gastrointestinal tract tumors in children and adolescents. a–d A 16-year-old girl with gastric adenocarcinoma (signet ring cell carcinoma) and colon adenocarcinoma. a, b US images show increased hypoechoic gastric wall thickening (arrows). c, d Post-contrast T1-weighted images show diffuse increased wall thickening in the stomach and increased wall thickening in the descending colon (arrows). Postoperative histopathological diagnosis was gastric adenocarcinoma with DNA mismatch repair deficiency. The patient was diagnosed with Lynch syndrome (hereditary nonpolyposis colorectal cancer)