Disease or Syndrome
acute sinusitis
a·cute si·nus·i·tis
Definitions related to acute sinusitis:
  • An acute form of sinusitis.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • Sinusitis lasting less than or equal to thirty days.
    NCI
    U.S. National Cancer Institute, 2021
  • Sinusitis is characterized by inflammation of the lining of the paranasal sinuses. Because the nasal mucosa is simultaneously involved and because sinusitis rarely occurs without concurrent rhinitis, rhinosinusitis is now the preferred term for this condition.
    Medscape
    WebMD, 2025
  • Acute sinusitis causes the spaces inside your nose (sinuses) to become inflamed and swollen. This interferes with drainage and causes mucus to build up.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
  • Acute sinusitis (also commonly known as acute rhinosinusitis) is a symptomatic inflammation of the mucosal lining of the nasal cavity and paranasal sinuses, where clinical symptoms have been present for 4 weeks or less. It can be caused by either a viral or a bacterial infection.
    Epocrates
    Athenahealth, Inc., 2019
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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.