What is preinvasive fungal sinusitis?

Updated: Mar 17, 2020
  • Author: Hassan H Ramadan, MD, MSc; Chief Editor: Arlen D Meyers, MD, MBA  more...
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A study by Paknezhad et al indicated that in addition to the invasive and noninvasive forms of fungal sinusitis, an intermediate, or preinvasive, subtype exists. In this form, intramucosal fungal infiltration occurs, but neither direct angioinvasion nor wide extension beyond the submucosa is found. The investigators reported that patients with preinvasive fungal sinusitis appear to need only limited surgical  débridement, rather than the extended and repeated débridement required in invasive fungal sinusitis. [10]

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