Reviewers: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 8 October 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.
● Rare (<100 cases reported), 80% in male infants, 3 cases reported in adults
● Benign behavior - excision is adequate treatment
● May originate from pluripotent cells in the gastric wall
● 17 day old boy with abdominal mass (Arch Pathol Lab Med 2001;125:445)
Figure 1: Abdominal CT shows focally calcified, complex solid and cystic gastric mass with posterior extension outside the stomach
Figure 2: Tumor is dumbbell-shaped with solid and cystic areas and small rim of normal gastric mucosa
Figure 3A: Mesodermal component is immature tooth buds
Figure 3B: Endodermal component is GI resembling small bowel
Figure 3C: Ectodermal component is immature neuroepithelial tubules
End of Stomach > Stromal/other tumors > Teratoma
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