Neoplastic Process
myxoma Audio
myx·o·ma [ mik-soh-muh ]
Subclass of:
Neoplasms, Connective Tissue
Etymology:
Greek myxa = mucus + -oma = tumor or neoplasm
A tumor of mucous tissue.
Definitions related to myxoma:
  • A benign neoplasm derived from connective tissue, consisting chiefly of polyhedral and stellate cells that are loosely embedded in a soft mucoid matrix, thereby resembling primitive mesenchymal tissue. It occurs frequently intramuscularly where it may be mistaken for a sarcoma. It appears also in the jaws and the skin. (From Stedman, 25th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A benign soft tissue neoplasm characterized by the presence of spindle and stellate cells, lobulated growth pattern, and myxoid stroma formation.
    NCI
    U.S. National Cancer Institute, 2021
  • A myxoma is a noncancerous primary heart tumor, usually irregular in shape and jellylike in consistency. People may feel short of breath or faint, or they may have fever or weight loss.
    Merck Manuals
    Merck & Co., Inc., 2025
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