{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T10:04:27Z","timestamp":1784282667635,"version":"3.55.0"},"reference-count":27,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2021,10,25]],"date-time":"2021-10-25T00:00:00Z","timestamp":1635120000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ann Otol Rhinol Laryngol"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>The current classification system of invasive fungal sinusitis (IFS) includes acute (aIFS) and chronic (cIFS) phenotypes. Both phenotypes display histopathologic evidence of tissue necrosis, but differ by presence of angioinvasion, extent of necrosis, and disease progression. aIFS is defined by a rapid onset of symptoms, while cIFS slowly progresses over \u226512\u2009weeks. However, a subset of IFS patients do not fit into the clinical presentation and histopathologic characteristics of either aIFS or cIFS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives:<\/jats:title>\n                    <jats:p>To investigate the demographic, clinical, and histopathologic characteristics of a distinct subset of IFS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Retrospective review of patients with IFS from a single tertiary-care institution (2010-2020). Patients with symptoms for \u22644\u2009weeks were classified as aIFS if they displayed endoscopic evidence of mucosal necrosis or fungal angioinvasion on pathology. Patients with slowly progressive IFS for \u226512\u2009weeks were classified as cIFS. Patients with symptom duration between 4 and 12\u2009weeks with evidence of invasive fungal disease were classified as a new entity and were further investigated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Of the 8 patients identified, 50% were immunosuppressed at presentation. The mean symptom duration prior to presentation was 50.5\u2009days (SD 16.8), and common symptoms included facial pain (100%), vision change (87.5%), and blindness (37.5%). Two patients (25%) died of their disease. Sites of fungal involvement confirmed by histopathology included sphenoid (62.5%) and ethmoid sinuses (12.5%), orbital apex (25%), optic nerve (12.5%), pterygopalatine fossa (12.5%), and clivus (12.5%). Fungal elements but without obvious angioinvasion, were identified in all specimens, and fungus balls (50%), granulomas (37.5%), and giant cells (25%) were also observed on histopathology. CT and MRI radiographic imaging showed findings consistent with orbital, intracranial, or skull base involvement in all patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>We propose intermediate IFS as a new subgroup of patients with IFS who do not fit into the standard classification of aIFS or cIFS.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/00034894211052854","type":"journal-article","created":{"date-parts":[[2021,10,25]],"date-time":"2021-10-25T09:01:21Z","timestamp":1635152481000},"page":"1021-1026","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Intermediate Invasive Fungal Sinusitis, a Distinct Entity From Acute Fulminant and Chronic Invasive Fungal Sinusitis"],"prefix":"10.1177","volume":"131","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2541-5088","authenticated-orcid":false,"given":"Andre J.","family":"Burnham","sequence":"first","affiliation":[{"name":"School of Medicine, Emory University, Atlanta, GA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelly R.","family":"Magliocca","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Pettitt-Schieber","sequence":"additional","affiliation":[{"name":"Department of Surgery, Albert Einstein College of Medicine, Bronx, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas S.","family":"Edwards","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology \u2013 Head and Neck Surgery, Emory University, Atlanta, GA, 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