Neoplastic Process
acanthoma
Subclass of:
Squamous Cell Neoplasms; Skin Neoplasms
Etymology:
Greek akanthos = thorn + -oma = a tumor
Definitions related to acanthoma:
  • A benign epithelial skin tumor manifesting as a slightly elevated circular plaque or nodule with a red, pink or brown color and a diameter up to 22 mm.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • A benign skin neoplasm composed of epithelial cells.
    NCI
    U.S. National Cancer Institute, 2021
  • A neoplasm composed of squamous or epidermal cells.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • An acanthoma is a small, reddish bump that usually develops on the skin of an older adult. There are several types of acanthoma, including "acantholytic", "epidermolytic", "clear cell ", and "melanoacanthoma". Though most individuals have only one acanthoma, there have been rare reports of individuals who have developed many. The exact...
    NIH Genetic and Rare Diseases
    National Center for Advancing Translational Sciences
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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.