Intestinal metastases from gastric adenocarcinoma: helical CT findings

J Comput Assist Tomogr. Jan-Feb 2001;25(1):61-7. doi: 10.1097/00004728-200101000-00011.

Abstract

Purpose: The purpose of this work was to describe the helical CT findings of intestinal metastasis from gastric adenocarcinoma.

Method: Twenty-three patients with intestinal metastasis from gastric adenocarcinoma found at helical CT were included. CT findings and clinical and pathologic data were reviewed.

Results: The most common characteristic finding was target-like concentric bowel wall thickening (thick inner high-outer low, n = 18) involving multiple long segments with progressive thickening of the enhancing inner layer. Fifteen cases (65%) involved multiple sites, and the ascending colon (n = 12) and rectum (n = 11) were the two most common sites. Peritoneal carcinomatosis (n = 15, 65%) and bowel obstruction (n = 14, 61%) were common associated findings. Regarding the primary lesion, the majority was linitis plastica (n = 16) and poorly differentiated adenocarcinoma with or without signet-ring cell differentiation (n = 14).

Conclusion: Intestinal metastasis from gastric adenocarcinoma, especially of the linitis plastica type, most commonly showed target-like long segmental wall thickening with a characteristically thick inner enhancing layer on helical CT.

MeSH terms

  • Adenocarcinoma / diagnosis
  • Adenocarcinoma / diagnostic imaging*
  • Adenocarcinoma / secondary*
  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Humans
  • Intestinal Neoplasms / diagnostic imaging*
  • Intestinal Neoplasms / pathology
  • Intestinal Neoplasms / secondary
  • Male
  • Middle Aged
  • Stomach Neoplasms / diagnosis
  • Stomach Neoplasms / diagnostic imaging*
  • Stomach Neoplasms / pathology
  • Tomography, X-Ray Computed / methods