Neoplastic Process
gastric leiomyosarcoma
Definitions related to gastric leiomyosarcoma:
  • A malignant neoplasm of the stomach that grows submucosally in the gastric wall. Necrosis and hemorrhage may be visible radiologically. Histologically, spindle cells with abnormal mitotic activity may be visible.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2021
  • An aggressive malignant smooth muscle neoplasm, arising from the stomach. It is characterized by a proliferation of neoplastic spindle cells.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.