Neoplastic Process
childhood leiomyosarcoma
Definitions related to childhood leiomyosarcoma:
  • A leiomyosarcoma occurring during childhood.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • An aggressive malignant smooth muscle neoplasm, occurring in children. It is characterized by a proliferation of neoplastic spindle cells.
    NCI
    U.S. National Cancer Institute, 2021
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