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Almaghrabi AA, Alnoury KI, Alkhulaifi AK. The Association Between Eosinophils and the Disease Process in Destructive Non-invasive Fungal Rhinosinusitis. Cureus 2023; 15:e46558. [PMID: 37808600 PMCID: PMC10556542 DOI: 10.7759/cureus.46558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2023] [Indexed: 10/10/2023] Open
Abstract
OBJECTIVE This study aims to investigate the significance of eosinophils in the progression and prognosis of destructive non-invasive fungal rhinosinusitis. METHODS This was a retrospective study of 126 patients who were operated on for a nasal sinus disease between 2010 and 2017; of these, 56 met the inclusion criteria. These were divided into two groups: (i) Group 1, with only the destructive non-invasive sinus polyposis type, and (ii) Group 2, with all types of nasal polyposis other than the destructive non-invasive sinus fungal polyposis type. Data including demographic data, paranasal sinuses (PNS) CT scans, pre- and post-operative eosinophils count, histopathology of polyps, and fungal cultures were collected from medical records from King Abdulaziz University Hospital, Jeddah, Saudi Arabia. A nonparametric Wilcoxon signed-rank test was used to determine a significant difference of p< 0.05. We performed multivariate analysis using repeated measure analysis of covariance (ANCOVA) and adjusted for confounders such as age, sex, pre- and post-operative IgE, fungal culture, and histopathology of the disease. Interaction between age, sex, IgE, and proportion of eosinophils was assessed at a p-value of 0.05. RESULTS A significant difference was found between pre-and post-operative blood eosinophils levels in Group 1 (p= 0.01) after adjusting for confounders such as age, sex, fungal culture, pre and post IgE, and histopathology of the disease. However, no significant difference was found in Group 2 (p= 0.663) even after adjusting for age, sex, fungal culture, pre and post IgE, and histopathology of the disease. We did not find any significant interaction (P>0.05) between pre- and post-operative levels of eosinophils with age, sex, and fungal culture among Group 1 and Group 2. CONCLUSIONS There is a statistically significant difference in blood eosinophils between pre- and post-operative levels in studied cases of destructive non-invasive fungal polyposis, a difference is not seen in nasal sinus polyp cases other than destructive non-invasive fungal polyposis types. High pre-operative eosinophils levels in destructive non-invasive fungal sinus polyposis types demonstrated the importance of eosinophils in the pathogenesis of this disease. The blood eosinophils can therefore be considered an important factor in the disease process and an indicator of the disease prognosis and destructive behavior.
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Affiliation(s)
- Amal A Almaghrabi
- Otolaryngology, Security Forces Hospital Program, Makkah, SAU
- Otolaryngology, King Abdulaziz University, Jeddah, SAU
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2
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Maruf M, Loya A, Mushtaq S, Hassan U, Hussain M, Hameed M. Identification of a Unique Morphological Pattern for the Diagnosis of Fungal Rhinosinusitis. Cureus 2023; 15:e41915. [PMID: 37583719 PMCID: PMC10424494 DOI: 10.7759/cureus.41915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2023] [Indexed: 08/17/2023] Open
Abstract
Fungal rhinosinusitis (FRS) is a relatively common, but often misdiagnosed disease of paranasal sinuses. The FRS is classified into invasive and non-invasive forms. The non-invasive form includes fungal ball and allergic FRS, and invasive form includes acute invasive FRS, chronic invasive FRS, and granulomatous FRS. Invasive fungal infections are associated with high morbidity and mortality, hence requiring urgent medical and surgical intervention. The histomorphology can help identify certain fungal organisms that cannot be cultured or are rarely visible in exudates. The morphologic diagnosis of tissue invasive and non-invasive fungal infection is essential for appropriate treatment. We analyzed cases of rhinosinusitis from 2017 to 2019 in Pathology Department at a tertiary care cancer hospital, Lahore, Pakistan. All clinical information was retrieved from patient records. Paraffin-embedded tissue blocks were stained with hematoxylin and eosin (H&E), special Grocott methenamine silver stain (GMS), and periodic acid Schiff stain (PAS) according to standard protocol. They were reviewed by two pathologists blinded by fungus status. A total of 169 cases of rhinosinusitis were reviewed. FRS comprised 146 (86.4%) of them. The mean age of patients with FRS was 32.8±14 years. The male:female ratio was 1.4:1. Maxillary sinus was the main site of involvement in 39 (27%) FRS cases. Aspergillus was identified in 117 (80.1%) cases of FRS. The culture reports were available in 44/146 (30.14%) FRS cases. They were negative in 22/44 (50.0%), and Aspergillus species were isolated in 18/44 (40.9%) cases of FRS. There were 84 (57.5%) cases of non-invasive FRS and 59 (40.4%) cases of invasive FRS. Among invasive FRS, there were 56 (38.4%) chronic granulomatous FRS cases including mixed patterns. Majority cases, 54 (96.4%), of chronic granulomatous FRS showed a unique crowded giant cell pattern comprising of foreign body and Langhans type giant cells. These giant cells were arranged closely forming irregular non-caseating granulomas surrounded by lymphocytes and fibrosis. Interestingly, the giant cells were scattered haphazardly without forming a granuloma as well. Fungal organisms were identified in all 56 cases of chronic granulomatous FRS. Histologically, predominant organism was Aspergillus in 48 (85.7%) on GMS and PAS stain. Our study observed a unique crowded giant cell pattern, which is a hallmark of invasive fungal infection. If pathologists are familiar with this unique pattern, they can make a quick and accurate diagnosis on histology. The physician can start antifungal treatment timely for better prognosis.
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Affiliation(s)
- Maheen Maruf
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
| | - Asif Loya
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
| | - Sajid Mushtaq
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
| | - Usman Hassan
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
| | - Mudassar Hussain
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
| | - Maryam Hameed
- Histopathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, PAK
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3
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Mahapatra L, Lu HC, Mansour M, Byrnes K. Discrepancies Between Clinical and Anatomic Causes of Death in Acute Invasive Fungal Sinusitis. Arch Pathol Lab Med 2022; 146:1281-1285. [PMID: 35041753 DOI: 10.5858/arpa.2021-0148-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2021] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Acute invasive fungal sinusitis (AIFS) can be challenging to diagnose because of its varied clinical presentation. OBJECTIVES.— To evaluate the discrepancies between clinical and autopsy diagnoses in patients with histologic evidence of AIFS at a tertiary care center. DESIGN.— Autopsy cases with a pathologic autopsy diagnosis of AIFS from the past 20 years at a tertiary hospital were evaluated for clinicopathologic features. Modified Goldman classification was used to classify discrepant cases. Clinical history was also reviewed. RESULTS.— Of 7071 institutional autopsy cases during 20 years, 9 met inclusion criteria and demonstrated AIFS at autopsy. Angioinvasive fungal elements were histologically identified in all cases, with multiorgan involvement in most cases (6 of 9; 67%). Major clinicopathologic discrepancies were identified in 6 cases (67%). CONCLUSIONS.— AIFS is an uncommon diagnosis rendered at autopsy. There is a subset of cases that demonstrate discrepancy between the clinical impression and pathologic autopsy diagnosis. Antemortem diagnosis of AIFS can be challenging, especially in cases without prototypical clinical symptoms and positive fungal cultures. At autopsy, there was multiorgan involvement, supporting extensive tissue sampling to evaluate for AIFS, even in the setting of negative fungal cultures or lack of classic symptoms. These findings highlight the importance of the pathologist's role at autopsy in the definitive diagnosis of AIFS, especially in clinically equivocal cases.
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Affiliation(s)
- Lily Mahapatra
- From the Department of Pathology and Immunology, Washington University in St Louis School of Medicine, St Louis, Missouri. Lu is now with the University of California, San Francisco School of Medicine, Oakland
| | - Hsiang-Chih Lu
- From the Department of Pathology and Immunology, Washington University in St Louis School of Medicine, St Louis, Missouri. Lu is now with the University of California, San Francisco School of Medicine, Oakland
| | - Mena Mansour
- From the Department of Pathology and Immunology, Washington University in St Louis School of Medicine, St Louis, Missouri. Lu is now with the University of California, San Francisco School of Medicine, Oakland
| | - Kathleen Byrnes
- From the Department of Pathology and Immunology, Washington University in St Louis School of Medicine, St Louis, Missouri. Lu is now with the University of California, San Francisco School of Medicine, Oakland
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4
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Casula E, Letizia Manca M, Manconi M. An integrative review on the uses of plant-derived bioactives formulated in conventional and innovative dosage forms for the local treatment of damaged nasal cavity. Int J Pharm 2021; 610:121229. [PMID: 34715259 DOI: 10.1016/j.ijpharm.2021.121229] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/09/2021] [Accepted: 10/21/2021] [Indexed: 12/22/2022]
Abstract
Plants and their derivates have been used as medicines for centuries and today is being re-discovered their usefulness for the human health. The therapeutic properties of phytochemicals are re-evaluated under the light of medical and pharmacological research, pushed by a constantly growing market demand, where consumers trust more natural products than synthetic drugs. New studies are enlightening the effectiveness of phytochemicals against a wide range of ailments, nevertheless very few evaluate the efficacy of topical formulations based on natural bioactive molecules in the treatment of nasal mucosal diseases. This review aims at exploring this little covered topic. An overview on the properties and functionality of the nasal mucosa and the different diseases affecting it has been provided. We summarized various nasal dosage forms containing natural bioactive and explored how innovative delivery systems loading phytochemicals can improve the treatment results. Finally, the potential use of novel nanocarriers for the treatment of nasal ailments has been covered as well.
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Affiliation(s)
- Eleonora Casula
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Letizia Manca
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
| | - Maria Manconi
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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5
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Burnham AJ, Magliocca KR, Pettitt-Schieber B, Edwards TS, Marcus S, DelGaudio JM, Wise SK, Levy JM, Roland LT. Intermediate Invasive Fungal Sinusitis, a Distinct Entity From Acute Fulminant and Chronic Invasive Fungal Sinusitis. Ann Otol Rhinol Laryngol 2021; 131:1021-1026. [PMID: 34694144 DOI: 10.1177/00034894211052854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND 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 ≥12 weeks. However, a subset of IFS patients do not fit into the clinical presentation and histopathologic characteristics of either aIFS or cIFS. OBJECTIVES To investigate the demographic, clinical, and histopathologic characteristics of a distinct subset of IFS. METHODS Retrospective review of patients with IFS from a single tertiary-care institution (2010-2020). Patients with symptoms for ≤4 weeks were classified as aIFS if they displayed endoscopic evidence of mucosal necrosis or fungal angioinvasion on pathology. Patients with slowly progressive IFS for ≥12 weeks were classified as cIFS. Patients with symptom duration between 4 and 12 weeks with evidence of invasive fungal disease were classified as a new entity and were further investigated. RESULTS Of the 8 patients identified, 50% were immunosuppressed at presentation. The mean symptom duration prior to presentation was 50.5 days (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. CONCLUSION We propose intermediate IFS as a new subgroup of patients with IFS who do not fit into the standard classification of aIFS or cIFS.
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Affiliation(s)
| | - Kelly R Magliocca
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | | | - Thomas S Edwards
- Department of Otolaryngology - Head and Neck Surgery, Emory University, Atlanta, GA, USA
| | - Sonya Marcus
- Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, Stony Brook Medicine, Stony Brook, NY, USA
| | - John M DelGaudio
- Department of Otolaryngology - Head and Neck Surgery, Emory University, Atlanta, GA, USA
| | - Sarah K Wise
- Department of Otolaryngology - Head and Neck Surgery, Emory University, Atlanta, GA, USA
| | - Joshua M Levy
- Department of Otolaryngology - Head and Neck Surgery, Emory University, Atlanta, GA, USA
| | - Lauren T Roland
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
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Kammoun AK, Khedr A, Hegazy MA, Almalki AJ, Hosny KM, Abualsunun WA, Murshid SSA, Bakhaidar RB. Formulation, optimization, and nephrotoxicity evaluation of an antifungal in situ nasal gel loaded with voriconazole‒clove oil transferosomal nanoparticles. Drug Deliv 2021; 28:2229-2240. [PMID: 34668818 PMCID: PMC8530484 DOI: 10.1080/10717544.2021.1992040] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Fungal infections of the paranasal cavity are among the most widely spread illnesses nowadays. The aim of the current study was to estimate the effectiveness of an in situ gel loaded with voriconazole‒clove oil nano-transferosomes (VRC-CO-NT) in enhancing the activity of voriconazole against Aspergillus flavus, which causes rhinosinusitis. The nephrotoxic side effects of voriconazole may be reduced through the incorporation of the clove oil, which has antioxidant activity that protects tissue. The Box‒Behnken design was applied to formulate the VRC-CO-NT. The particle size, entrapment efficiency, antifungal inhibition zone, and serum creatinine concentration were considered dependent variables, and the soybean lecithin, VRC, and CO concentrations were considered independent ones. The final optimized formulation was loaded into a deacetylated gellan gum base and evaluated for its gelation, rheological properties, drug release profile, permeation capabilities, and in vivo nephrotoxicity. The optimum formulation was determined to be composed of 50 mg/mL lecithin, 18 mg/mL VRC, and 75 mg/mL CO, with a minimum particle size of 102.96 nm, an entrapment efficiency of 71.70%, an inhibition zone of 21.76 mm, and a serum creatinine level of 0.119 mmol/L. The optimized loaded in situ gel released 82.5% VRC after 12 hours and resulted in a 5.4-fold increase in drug permeation. The in vivo results obtained using rabbits resulted in a nonsignificant differentiation among the renal function parameters compared with the negative control group. In conclusion, nasal in situ gel loaded with VRC-CO-NT is considered an efficient novel carrier with enhanced antifungal properties with no signs of nephrotoxicity.
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Affiliation(s)
- Ahmed K Kammoun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alaa Khedr
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maha A Hegazy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Ahmed J Almalki
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of pharmaceutics and industrial pharmacy, Beni Suef University, Ben-Suef, Egypt
| | - Walaa A Abualsunun
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Samar S A Murshid
- Department of Natural products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rana B Bakhaidar
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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7
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Prevalence of Positive Fungal Cultures in Patients with Chronic Sinusitis undergoing Functional Endoscopic Sinus Surgery in Yasuj, Iran. JOURNAL OF CLINICAL CARE AND SKILLS 2021. [DOI: 10.52547/jccs.2.3.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Hooli SA, Gadre VN, Bage S, Gilvarkar MD. The aftermath of COVID-19 pandemic: Rhino-orbital mucormycosis. Indian J Anaesth 2021; 65:548-553. [PMID: 34321687 PMCID: PMC8312397 DOI: 10.4103/ija.ija_371_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/05/2021] [Accepted: 06/05/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- Suhas Ashok Hooli
- Department of Anaesthesiology, Grant GMC, Mumbai, Maharashtra, India
| | | | - Sunita Bage
- Department of Ear Nose Throat, Grant GMC, Mumbai, Maharashtra, India
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9
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Bartoš V, Bartošová V. Mycotic Infection (Fungal Ball) of the Paranasal Sinuses: A Clinicopathological Observation. GALICIAN MEDICAL JOURNAL 2020. [DOI: 10.21802/gmj.2020.4.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Mycotic infections of the nasal cavity and paranasal sinuses represent a wide spectrum of disorders that vary in clinical presentation, histopathologic appearances, and biological significance. The second most common form is a fungal ball.
The objective of the research was to describe the cases of paranasal sinus fungal ball found in the files of patients with chronic rhinosinusitis.
Materials and Methods. There were demonstrated clinical and histopathological data of two patients.
Results. A 42-year-old woman and a 40-year-old man with chronic hypertrophic sinusitis had a large amount of friable cheesy mass in the maxillary sinus. The female patient previously underwent upper dental arch sanation. Histology revealed dense laminated masses of matted fungal hyphae that were separate from the mucosa. Sinonasal mucosa showed mild chronic inflammation (male) and severe non-specific chronic active inflammation (female). No evidence of fungal invasion in the mucosa was found.
Conclusions. Fungal ball represents a non-invasive form of mycotic rhinosinusitis with favourable prognosis. Biopsy examination plays an important role in the diagnostic process. Although the diagnosis can also be achieved by polymerase chain reaction assays, biopsy is the only way to explore the status of an inflammatory damage to adjacent tissue and, thus, to rule out potential invasive mycotic sinus disease with much worse clinical outcome.
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10
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Alotaibi NH, Omar OA, Altahan M, Alsheikh H, Al Mana F, Mahasin Z, Othman E. Chronic Invasive Fungal Rhinosinusitis in Immunocompetent Patients: A Retrospective Chart Review. Front Surg 2020; 7:608342. [PMID: 33392248 PMCID: PMC7772145 DOI: 10.3389/fsurg.2020.608342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/16/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: We report cases of Chronic Invasive Fungal Sinusitis (CIFS) in patients considered as immunocompetent at tertiary care center (King Faisal Specialist Hospital), to analyze their clinical, biological, radiological features, and management. Material and methods: A retrospective chart review of CIFS in immunocompetent patients. The inclusion criteria as the following: immunocompetent patients of any age with histopathological findings of CIFS. Immunocompromised patients, acute Invasive Fungal Sinusitis (IFS), non-invasive fungal rhinosinusitis, and no positive histological findings were excluded. Results: Seventeen (17) patients were included. The species isolated included: Aspergillus (most frequent) & Mucor. Surgical treatment approaches were described. Complications reported include CSF leak, blindness, recurrence, and death. Conclusions: Early diagnosis and management of CIFS improve clinical outcomes.
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Affiliation(s)
- Naif H Alotaibi
- Department of Otolaryngology, Head and Neck Surgery and Communication Sciences, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia.,College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Omar Abu Omar
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Mays Altahan
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Haifa Alsheikh
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Fawziah Al Mana
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Zeyad Mahasin
- Department of Otolaryngology, Head and Neck Surgery and Communication Sciences, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Eyas Othman
- Department of Otolaryngology, Head and Neck Surgery and Communication Sciences, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia.,College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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11
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Wang LL, Chen FJ, Yang LS, Li JE. Analysis of pathogenetic process of fungal rhinosinusitis: Report of two cases. World J Clin Cases 2020; 8:451-463. [PMID: 32047798 PMCID: PMC7000939 DOI: 10.12998/wjcc.v8.i2.451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/21/2019] [Accepted: 01/02/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Fungal rhinosinusitis is an infectious and/or allergic disease caused by fungi in the sinus and nasal cavity. Due to the warm and humid climate in Guangxi Zhuang Autonomous Region, the incidence of fungal rhinosinusitis is higher than that in other provinces. However, its physiological mechanism is not yet clear. Not every patient colonized by fungi develops a fungal infection. To a large extent, the immune status of the patient determines the nature of fungal disease in the nasal passages. The pathologic process of progression from harmless fungal colonization to fungal rhinosinusitis is unclear and has not been reported. CASE SUMMURY We report two patients, one who developed fungal rhinosinusitis 1.5 years after surgery performed to treat an inverted papilloma, and the other with a history of hypertension and cerebral infarction. Both patients recovered from their surgeries. An average time of 2.5 years elapsed from the development of maxillary sinus cysts to the development of fungal rhinosinusitis. CONCLUSION According to these case reports, we speculate that the progression of fungal rhinosinusitis from harmless colonization to disease onset requires approximately one to three years and that the length of the process may be related to underlying diseases, surgical treatment, deficient autoimmune status, and abuse of hormone antibiotics and hormones. Additional data are needed to conduct relevant studies to appropriately prevent and treat fungal rhinosinusitis.
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Affiliation(s)
- Lin-Lin Wang
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning 530022, Guangxi Zhuang Autonomous Region, China
| | - Feng-Ji Chen
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning 530022, Guangxi Zhuang Autonomous Region, China
| | - Long-Su Yang
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning 530022, Guangxi Zhuang Autonomous Region, China
| | - Jie-En Li
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning 530022, Guangxi Zhuang Autonomous Region, China
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Abstract
Fungal rhinosinusitis (FRS), once considered a rare disease, has seen a steep rise in incidence in recent times. This global rise in the burden of fungal disease is a consequence of an increment in the population with weakened immune systems. Increased life expectancy with rise in conditions like diabetes mellitus, medical advancements with invasive interventions, use of immunosuppressive drugs and chemo-radiotherapy all lead to unique risk situations. The situation becomes more alarming with the fact that there has been a significant rise in cases in immune-competent hosts with no predisposing factors. FRS represents a wide spectrum of disease ranging from the mild form of superficial colonization, allergic manifestations to life threatening extensive invasive disease. The categorization of disease into acute and chronic and invasive or noninvasive is important factor with implications in disease management and prognosis and this has been emphasized greatly in recent years. Diagnosis of FRS has been a challenge as the presenting clinical signs and symptoms and radiographic manifestations are often nonspecific. Definitive diagnosis requires direct fungi identification and hence culture and microscopic examination remain the gold standard. Availability of advanced and rapid diagnostic techniques is rare in majority of developing nations. Therapeutic dilemmas are another aspect of the management of FRS as in spite of the availability of new antifungal drugs, treatment is often empirical due to non-availability of early diagnosis, rapid disease progression and high costs of antifungal drugs. A description of the different types of FRS, their diagnosis and management has been presented in this review.
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Affiliation(s)
- Virendra Singh
- Department of Oral and maxillofacial Surgery, PGIDS, Pt. BD Sharma University of Health Sciences, Rohtak, Haryana 124001 India
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13
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Edelmayer L, Ito C, Lee WS, Kimbrough J, Kountakis SE, Byrd JK. Conversion to Chronic Invasive Fungal Sinusitis From Allergic Fungal Sinusitis in Immunocompetence. Laryngoscope 2019; 129:2447-2450. [DOI: 10.1002/lary.27884] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Luke Edelmayer
- Department of Otolaryngology–Head and Neck SurgeryAugusta University Augusta Georgia
| | | | - Won Sok Lee
- Department of PathologyAugusta University Augusta Georgia
| | | | | | - J. Kenneth Byrd
- Department of Otolaryngology–Head and Neck SurgeryAugusta University Augusta Georgia
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14
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Pestana J, Carmo A, Ribeiro JC, Tomé R. Chronic invasive rhinosinusitis by Conidiobolus coronatus, an emerging microorganism. J Mycol Med 2019; 29:67-70. [PMID: 30638827 DOI: 10.1016/j.mycmed.2018.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 12/02/2018] [Accepted: 12/19/2018] [Indexed: 10/27/2022]
Abstract
Fungi from the Conidiobolus genus have been implicated in the development of chronic invasive fungal rhinosinusitis, mainly in tropical countries. The mycosis associated to these fungi may cause irreversible facial deformities and is potentially fatal. The authors present the first case of a chronic invasive fungal rhinosinusitis due to Conidiobolus coronatus diagnosed in a 66-year-old Caucasian male patient, living in Portugal without any travels abroad and complaining of progressive refractory nasal obstruction, facial pain and anosmia. Upon the culture of samples collected during sinus endoscopic surgery, colonies that presented a macroscopic aspect remembering wax were detected. The microscopic evaluation allowed the observation of simple conidiophores forming spherical conidia, and of conidiophores that presented hair-like appendages. Together, these characteristics allowed the identification of the fungi as a Conidiobolus, which was confirmed upon the DNA sequencing. The authors emphasised the role of this fungi as an emergent microorganism as well as the difficulties associated to the diagnosis and treatment.
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Affiliation(s)
- J Pestana
- Faculty of Medicine, University of Coimbra, 3000 Coimbra, Portugal
| | - A Carmo
- Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, 3000 Coimbra, Portugal
| | - J C Ribeiro
- Faculty of Medicine, University of Coimbra, 3000 Coimbra, Portugal; Department of Otorhinolaryngology, Centro Hospitalar e Universitário de Coimbra, 3000 Coimbra, Portugal
| | - R Tomé
- Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, 3000 Coimbra, Portugal.
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15
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Wu PW, Huang YL, Yang SW, Lee YS, Huang CC, Chang PH, Huang CC, Lee TJ. Acute invasive fungal rhinosinusitis in twenty-one diabetic patients. Clin Otolaryngol 2018; 43:1163-1167. [PMID: 29600548 DOI: 10.1111/coa.13109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2018] [Indexed: 11/30/2022]
Affiliation(s)
- P-W Wu
- Division of Rhinology, Department of Otolaryngology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chang Gung University, Keelung, Taiwan
| | - Y-L Huang
- Department of Anatomic Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - S-W Yang
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chang Gung University, Keelung, Taiwan.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Y-S Lee
- Genomic Medicine Research Core Laboratory, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Biotechnology, Ming Chuan University, Taoyuan, Taiwan
| | - C-C Huang
- Division of Rhinology, Department of Otolaryngology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - P-H Chang
- Division of Rhinology, Department of Otolaryngology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - C-C Huang
- Division of Rhinology, Department of Otolaryngology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - T-J Lee
- Division of Rhinology, Department of Otolaryngology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan.,Xiamen Chang Gung Hospital, Xiamen, China
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16
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Helman SN, Filip P, Kamat A. Fungal granulomatous disease of the nasal cavity: A case report of a rare entity. Am J Otolaryngol 2017; 38:642-644. [PMID: 28550960 DOI: 10.1016/j.amjoto.2017.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 05/07/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Samuel N Helman
- Department of Otolaryngology/Head and Neck Surgery, New York Eye and Ear Infirmary, Mount Sinai Health System, 310 E. 14th St., 6th Floor, NY, NY 10003, United States.
| | - Peter Filip
- Loyola University of Chicago, Stritch School of Medicine, Maywood, IL 60153, United States
| | - Ameet Kamat
- Department of Otolaryngology/Head and Neck Surgery, Westchester Medical Center, ENT Faculty Practice, 100 Woods Rd., Valhalla, NY 10595, United States
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17
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Abstract
PURPOSE OF REVIEW To summarize diagnostic techniques for invasive fungal rhinosinusitis and provide a review of treatment options once disease has spread to the orbit. RECENT FINDINGS Improved imaging criteria, polymerase chain reaction and other serologic tests show promise in advancing our ability to accurately diagnose invasive fungal disease. Currently, there exists three treatment options for infected orbital tissue: exenteration, conservative debridement and transcutaneous retrobulbar injection of amphotericin B. Exenteration, the most frequently reported intervention, has not been proven to enhance survival. Conservative debridement and transcutaneous retrobulbar injection of amphotericin B are increasingly considered reasonable first-line options. SUMMARY Although investigative tools are improving, invasive fungal rhinosinusitis can still pose a diagnostic challenge. No one treatment option for the orbit has been proven superior to another. Therefore, it is justified to initiate therapy by prioritizing less morbid procedures. If deterioration is continually noted, more invasive interventions can then be employed. The treatment algorithm established at our institution is provided.
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18
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Najafzadeh MJ, Jalaeian Samani K, Houbraken J, Alizadeh M, Fata A, Naseri A, Zarrinfar H, Bakhshaee M. Identification of fungal causative agents of rhinosinusitis from Mashhad, Iran. Curr Med Mycol 2017; 3:5-9. [PMID: 29707667 PMCID: PMC5914920 DOI: 10.29252/cmm.3.3.5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background and Purpose: Rhinosinusitis is a common disorder, influencing approximately 20% of the population at some time of their lives. It was recognized and reported with expanding recurrence over the past two decades worldwide. Undoubtedly, correct diagnosis of fungi in patients with fungal rhinosinusitis affects the treatment planning and prognosis of the patients. Identification of the causative agents using the standard mycological procedures remains difficult and time-consuming. Materials and Methods: Based on clinical and radiological parameters, 106 patients suspected of fungal rhinosinusitis were investigated in this cross-sectional prospective study from April 2012 to March 2016 at an otorhinolaryngology department. In this study, internal transcribed spacer (ITS) and calmodulin (CaM) sequencing were respectively validated as reliable techniques for the identification of Mucorales and Aspergillus to species level (both agents of fungal rhinosinusitis). Results: Of these, 63 (59.4%) patients were suspected of allergic fungal rhinosinusitis (AFRS), 40 (37.7%) patients suspected of acute invasive fungal rhinosinusitis (AIFRS), and 3 (2.8%) patients suspected of mycetoma. In patients suspected of AFRS, AIFRS, and mycetoma only 7, 29, and 1 had positive fungal culture, respectively. After ITS and CaM sequencing, Aspergillus flavus was the most common species isolated from non-invasive forms, and A. flavus and Rhizopus oryzae were more frequently isolated from invasive forms. Conclusion: Aspergillus flavus is the most common agent of fungal rhinosinusitis in Iran, unlike most other reports from throughout the world stating that A. fumigatus is the most frequent causative agent of this disease.
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Affiliation(s)
- Mohammad J Najafzadeh
- Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Karim Jalaeian Samani
- Department of Otorhinolaryngology Head and Neck Surgery, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jos Houbraken
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - Majid Alizadeh
- Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdolmajid Fata
- Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Naseri
- Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Zarrinfar
- Allergy research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Bakhshaee
- Sinus and Surgical Endoscopic Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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19
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Abstract
The sinonasal tract is frequently affected by nonneoplastic inflammatory diseases. Inflammatory lesions of the sinonasal tract can be divided into 3 main categories: chronic rhinosinusitis, which encompasses a heterogeneous group of entities, all of which result in mucosal inflammation with or without polyps-eosinophils; infectious diseases; and autoimmune diseases and vasculitides, which can result in midline necrosis and facial deformities. This article reviews the common inflammatory lesions of the sinonasal tract with emphasis on infectious diseases, vasculitis, iatrogenic, and diseases of unknown cause. Many of these lesions can result in midline destruction and result in facial deformity.
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Affiliation(s)
- Kathleen T Montone
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, 6 Founders, Philadelphia, PA 19104, USA.
| | - Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, 6 Founders, Philadelphia, PA 19104, USA
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20
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Chakrabarti A, Kaur H. Allergic Aspergillus Rhinosinusitis. J Fungi (Basel) 2016; 2:E32. [PMID: 29376948 PMCID: PMC5715928 DOI: 10.3390/jof2040032] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/29/2016] [Accepted: 12/01/2016] [Indexed: 12/19/2022] Open
Abstract
Allergic fungal rhinosinusitis (AFRS) is a unique variety of chronic polypoid rhinosinusitis usually in atopic individuals, characterized by presence of eosinophilic mucin and fungal hyphae in paranasal sinuses without invasion into surrounding mucosa. It has emerged as an important disease involving a large population across the world with geographic variation in incidence and epidemiology. The disease is surrounded by controversies regarding its definition and etiopathogenesis. A working group on "Fungal Sinusitis" under the International Society for Human and Animal Mycology (ISHAM) addressed some of those issues, but many questions remain unanswered. The descriptions of "eosinophilic fungal rhinosinusitis" (EFRS), "eosinophilic mucin rhinosinusitis" (EMRS) and mucosal invasion by hyphae in few patients have increased the problem to delineate the disease. Various hypotheses exist for etiopathogenesis of AFRS with considerable overlap, though recent extensive studies have made certain in depth understanding. The diagnosis of AFRS is a multi-disciplinary approach including the imaging, histopathology, mycology and immunological investigations. Though there is no uniform management protocol for AFRS, surgical clearing of the sinuses with steroid therapy are commonly practiced. The role of antifungal agents, leukotriene antagonists and immunomodulators is still questionable. The present review covers the controversies, recent advances in pathogenesis, diagnosis, and management of AFRS.
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Affiliation(s)
- Arunaloke Chakrabarti
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India.
| | - Harsimran Kaur
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India.
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21
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Abstract
CONTEXT A number of entities may result in necrosis in the sinonasal tract and lead to significant morbidity and mortality. These include infections, necrotizing vasculitis, neoplastic processes, and drug dependency. This review will concentrate on the differential diagnosis of sinonasal necrotizing lesions. OBJECTIVE To review the differential diagnoses of necrotizing destructive lesions of the sinonasal tract. DATA SOURCES The current literature was reviewed to provide updated information regarding the differential diagnosis of sinonasal necrotizing lesions, including infectious disease processes; antineutrophilic cytoplasmic antibody-associated vasculitides; neoplastic processes, particularly natural killer/T-cell lymphomas; and drug abuse. CONCLUSIONS The differential diagnosis of necrotizing sinonasal lesions is broad, with often overlapping diagnostic features that lead to diagnostic challenges. Ancillary tests such as special stains and immunohistochemical studies can offer significant assistance.
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Affiliation(s)
- Kathleen T Montone
- From the Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia
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22
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Abstract
Fungal rhinosinusitis (FRS) comprises a spectrum of disease processes that vary in clinical presentation, histologic appearances, and biological significance. FRS can be acute or chronic and is most commonly classified as non-invasive or invasive based on whether fungi have invaded into tissue. This manuscript will review the pathologic classification of FRS.
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23
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Giri S, Kindo AJ, Rao S, Kumar AR. Unusual causes of fungal rhinosinusitis: a study from a tertiary care centre in South India. Indian J Med Microbiol 2015; 31:379-84. [PMID: 24064646 DOI: 10.4103/0255-0857.118901] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE The frequency of mycotic infections of the nose and paranasal sinuses has been increasing over the past three decades. Apart from the common causes of fungal rhinosinusitis such as Aspergillus species and Penicillium species, there have been reports of rare and unusual fungi isolated from India and other countries. OBJECTIVE The objective of this study is to find out the prevalence of fungal infections of the nose and paranasal sinuses caused by unusual fungal isolates at a tertiary care teaching hospital in South India. MATERIALS AND METHODS Duration of the study period was from April 2009 to March 2010. Specimens were collected from the nose and paranasal sinuses of all clinically and radiologically diagnosed cases of rhinosinusitis. All the clinical specimens were processed by standard methods for fungal culture. This included initial screening by 10% potassium hydroxide, inoculation of the specimen onto Sabouraud dextrose agar and incubation at 25°C and 37°C, followed by slide culture and other special techniques wherever necessary. Histopathological examination was also performed for the specimens. RESULTS A total of 60 specimens were received for fungal culture from cases of rhinosinusitis during the period, out of which 45 showed no growth. There were nine cases of Aspergillus flavus, 1 each of Aspergillus fumigatus and Penicillium species. The rest four specimens grew rare fungal isolates, i.e. Acremonium sp., Scedosporium apiospermun, Cladosporium cladosporioides and Lasiodiplodia theobromae. Histopathological findings were also positive for these four cases. CONCLUSION Apart from the common causes, unusual fungal pathogens were isolated from cases of rhinosinusitis during the study period, which is in accordance with similar reports from other parts of India and some other countries.
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Affiliation(s)
- S Giri
- Department of Gastrointestinal Sciences, Williams Research Building, Christian Medical College, Vellore, Tamil Nadu, India
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24
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Chakrabarti A, Rudramurthy SM, Panda N, Das A, Singh A. Epidemiology of chronic fungal rhinosinusitis in rural India. Mycoses 2015; 58:294-302. [DOI: 10.1111/myc.12314] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 02/13/2015] [Accepted: 02/16/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Arunaloke Chakrabarti
- Department of Medical Microbiology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - Shivaprakash M. Rudramurthy
- Department of Medical Microbiology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - Naresh Panda
- Department of Otolaryngology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - Ashim Das
- Department of Histopathology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - Amarjeet Singh
- Department of Community Medicine; Postgraduate Institute of Medical Education and Research; Chandigarh India
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25
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Kale P, Rudramurthy SM, Panda NK, Das A, Chakrabarti A. The inflammatory response of eosinophil-related fungal rhinosinusitis varies with inciting fungi. Med Mycol 2015; 53:387-95. [PMID: 25724204 DOI: 10.1093/mmy/myv001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 12/28/2014] [Indexed: 12/14/2022] Open
Abstract
Earlier studies demonstrated immunological response to Alternaria alternata in patients with eosinophil-related fungal rhinosinusitis (FRS). However, Aspergillus flavus rather than A. alternata is predominantly isolated from such patients in Asia. We compared immunological response to A. flavus and A. alternata in our patients with eosinophil related FRS. Total immunoglobulin E, absolute eosinophil count (AEC), cytokine response, and in vitro eosinophil degranulation in the presence of A. flavus/A. alternata were compared among patients with eosinophil-related FRS, non-eosinophilic rhinosinusitis (NECRS), and healthy individuals. Eosinophil-related FRS patients were subgrouped into: Group A - presence of mucin with fungus in tissues and positive immediate hypersensitivity; group B - presence of mucin with fungus in biopsies and no immediate hypersensitivity; and group C - presence of mucin without fungi and hypersensitivity. A. flavus was the predominant (89%) isolate. Significantly higher major basic protein (MBP) was induced by A. flavus in Group A (279.15 ± 32.29 ng/2.5 × 10(5) cells) compared to Group B (254.9 ± 17.14 ng), Group C (238.33 ± 17.56 ng), NECRS (56.96 ± 10.97 ng), and normal subjects (28.73 ± 7.04 ng). A. alternata - eosinophil interaction failed to induce detectable MBP. AEC and serum cytokines, interleukin (IL)- 2, IL-4, IL-5, IL-10, tumor necrosis factor α, and interferon-γ were significantly higher (P < 0.001) in eosinophil-related FRS compared to NECRS and control. Thus a mixed Th1 and Th2 cytokine response was observed in eosinophil-related FRS. In conclusion, immune response in eosinophil-related FRS depends on locally inciting fungi rather than A. alternata in all instances, and the categorization of this group appears to be arbitrary.
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Affiliation(s)
- Pratibha Kale
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, at present All India Institute of Medical Sciences, New Delhi, India
| | - Shivaprakash M Rudramurthy
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Naresh K Panda
- Department of Otolaryngology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashim Das
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arunaloke Chakrabarti
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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26
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Chowdhury FH, Haque MR, Khan SK, Alam SM. Cerebral aspergilloma in a SLE patient: A case report with short literature review. Asian J Neurosurg 2014; 9:58-61. [PMID: 25126119 PMCID: PMC4129578 DOI: 10.4103/1793-5482.136710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Aspergillosis of brain is very rare, and commonly seen in immunocompromised or immunosuppressed patient. Here, we report a cerebral aspergillosis condition in a late teen girl who is a Systemic Lupus Erythromatosis patient with steroid therapy. She developed headaches, vomitings, and convulsions. On the basis of clinical and neuroimaging, a diagnosis of cerebral tuberculoma was made, and she was put on anti-TB therapy, but she did not respond. Later, surgical partial excision biopsy confirmed the diagnosis. Her cerebral lesions responded with antifungal itraconazole therapy. The case will be presented with short literature review. Such a report in the literature is rare.
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Affiliation(s)
| | | | - Shafiqul Kabir Khan
- Department of Neurosurgery, Dhaka Medical College Hospital, Dhaka, Bangladesh
| | - Sarwar Morshed Alam
- Department of Neurosurgery, Dhaka Medical College Hospital, Dhaka, Bangladesh
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27
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28
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El Naderi S, Rodriguez C, Devars Du Mayne M, Badoual C. Une rhinosinusite fongique invasive chez un patient immunocompétent. Ann Pathol 2013; 33:410-3. [DOI: 10.1016/j.annpat.2013.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 09/18/2013] [Accepted: 10/01/2013] [Indexed: 11/28/2022]
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29
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Chang C, Gershwin ME, Thompson GR. Fungal disease of the nose and sinuses: an updated overview. Curr Allergy Asthma Rep 2013; 13:152-61. [PMID: 23135919 DOI: 10.1007/s11882-012-0320-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fungal diseases of the nose and sinuses encompasses a diverse spectrum of disease. Clinical manifestations are largely dependent upon the immune status of the host, as, given the ubiquitous nature of these organisms, exposure is unavoidable. Asymptomatic colonization of the nasal passages by fungi warrants no treatment and is common, while allergic fungal rhinosinusitis is challenging and often requires a combined approach of surgical intervention, immunotherapy, and corticosteroid administration. A diagnosis requires a combination of IgE immune reactivity, eosinophilic infiltration, and fungi recovery. Similarly, invasive disease may present only after several months of slowly progressive disease, or in rapid and fulminant fashion in the appropriate host. A differentiation of these overlapping syndromes and the pathophysiologic processes at play, and recommended treatment algorithms, are the focus of this review.
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Affiliation(s)
- Christopher Chang
- Department of Pediatrics, Division of Allergy, Asthma, and Immunology, Nemours/A.I. Dupont Hospital for Children, Thomas Jefferson University, 1600 Rockland Road, Wilmington, DE, 19803, USA.
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30
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Shields RC, Mokhtar N, Ford M, Hall MJ, Burgess JG, ElBadawey MR, Jakubovics NS. Efficacy of a marine bacterial nuclease against biofilm forming microorganisms isolated from chronic rhinosinusitis. PLoS One 2013; 8:e55339. [PMID: 23441151 PMCID: PMC3575374 DOI: 10.1371/journal.pone.0055339] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 12/21/2012] [Indexed: 11/18/2022] Open
Abstract
Background The persistent colonization of paranasal sinus mucosa by microbial biofilms is a major factor in the pathogenesis of chronic rhinosinusitis (CRS). Control of microorganisms within biofilms is hampered by the presence of viscous extracellular polymers of host or microbial origin, including nucleic acids. The aim of this study was to investigate the role of extracellular DNA in biofilm formation by bacteria associated with CRS. Methods/Principal Findings Obstructive mucin was collected from patients during functional endoscopic sinus surgery. Examination of the mucous by transmission electron microscopy revealed an acellular matrix punctuated occasionally with host cells in varying states of degradation. Bacteria were observed in biofilms on mucosal biopsies, and between two and six different species were isolated from each of 20 different patient samples. In total, 16 different bacterial genera were isolated, of which the most commonly identified organisms were coagulase-negative staphylococci, Staphylococcus aureus and α-haemolytic streptococci. Twenty-four fresh clinical isolates were selected for investigation of biofilm formation in vitro using a microplate model system. Biofilms formed by 14 strains, including all 9 extracellular nuclease-producing bacteria, were significantly disrupted by treatment with a novel bacterial deoxyribonuclease, NucB, isolated from a marine strain of Bacillus licheniformis. Extracellular biofilm matrix was observed in untreated samples but not in those treated with NucB and extracellular DNA was purified from in vitro biofilms. Conclusion/Significance Our data demonstrate that bacteria associated with CRS form robust biofilms which can be reduced by treatment with matrix-degrading enzymes such as NucB. The dispersal of bacterial biofilms with NucB may offer an additional therapeutic target for CRS sufferers.
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Affiliation(s)
- Robert C. Shields
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Norehan Mokhtar
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Michael Ford
- Microbiology Department, Freeman Hospital, Newcastle upon Tyne, United Kingdom
| | - Michael J. Hall
- School of Chemistry, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - J. Grant Burgess
- School of Marine Science and Technology, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Mohamed Reda ElBadawey
- Department of Otolaryngology and Head & Neck Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom
- Otolaryngology Department, Tanta University, Tanta, Egypt
| | - Nicholas S. Jakubovics
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
- * E-mail:
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31
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Thurtell MJ, Chiu ALS, Goold LA, Akdal G, Crompton JL, Ahmed R, Madge SN, Selva D, Francis I, Ghabrial R, Ananda A, Gibson J, Chan R, Thompson EO, Rodriguez M, McCluskey PJ, Halmagyi GM. Neuro-ophthalmology of invasive fungal sinusitis: 14 consecutive patients and a review of the literature. Clin Exp Ophthalmol 2013; 41:567-76. [PMID: 23279383 DOI: 10.1111/ceo.12055] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 12/04/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Invasive fungal sinusitis is a rare condition that usually occurs in immunocompromised patients and often presents as an orbital apex syndrome. It is frequently misdiagnosed on presentation and is almost always lethal without early treatment. DESIGN Retrospective case series of 14 consecutive patients with biopsy-proven invasive fungal sinusitis from four tertiary hospitals. PARTICIPANTS Fourteen patients (10 men and 4 women; age range 46-82 years). METHODS Retrospective chart review of all patients presenting with invasive fungal sinusitis between 1994 and 2010 at each hospital, with a close analysis of the tempo of the disease to identify any potential window of opportunity for treatment. MAIN OUTCOME MEASURES Demographic data, background medical history (including predisposing factors), symptoms, signs, radiological findings, histopathological findings, treatment approach and subsequent clinical course were recorded and analysed. RESULTS Only one patient was correctly diagnosed at presentation. Only two patients were not diabetic or immunocompromised. The tempo was acute in two patients, subacute in nine patients and chronic in three patients. In the subacute and chronic cases, there was about 1 week of opportunity for treatment, from the time there was a complete orbital apex syndrome, and still a chance for saving the patient, to the time there was central nervous system invasion, which was invariably fatal. Only two patients survived - both had orbital exenteration, as well as antifungal drug treatment. CONCLUSIONS Invasive fungal sinusitis can, rarely, occur in healthy individuals and should be suspected as a possible cause of a progressive orbital apex syndrome.
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Affiliation(s)
- Matthew J Thurtell
- Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, USA.
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Chaaban MR, Bell W, Woodworth BA. Invasive Mucormycosis in an Immunocompetent Patient with Allergic Fungal Rhinosinusitis. Otolaryngol Head Neck Surg 2012; 148:174-5. [DOI: 10.1177/0194599812460988] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mohamad R. Chaaban
- Departments of Surgery/Division of Otolaryngology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Walter Bell
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Bradford A. Woodworth
- Departments of Surgery/Division of Otolaryngology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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33
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Dąbrowska K, Kozłowski Z, Durko T, Stańczyk R, Pietruszewska W. [Fungal rhinosinusitis - still unsolved problem]. Otolaryngol Pol 2012; 65:369-76. [PMID: 22078288 DOI: 10.1016/s0030-6657(11)70728-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Accepted: 06/20/2011] [Indexed: 10/15/2022]
Abstract
Chronic rhinosinusitis (CRS) is an inflammatory disease affecting the nose and paranasal sinuses. Fungi are considered to be one of the pathogens responsible for some kinds of CRS. Fungal rhinosinusitis - the classifications schemes, the diagnostic criteria and methods of treatment are still being discussed. 338 patients underwent the endoscopic sinus surgery due to CRS in the Otolaryngology Department of the Medical University of Lodz in the years 2009-2011 (February). The histopathological examination revealed fungi only in three patients. The authors report three cases of patients with fungal rhinosinustis - the fungal ball of the sphenoid sinus in one patients, the fungal ball of the maxillary sinus in the second one and non-invasive fungal rhinosinusitis. The different classifications and diagnostic criteria are also presented. Based on the publications using updated diagnostic standards and sensitive techniques to detect fungi, a higher number of patients can now be diagnosed with fungal rhinosinusitis.
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Affiliation(s)
- Katarzyna Dąbrowska
- Katedra Otolaryngologii, Klinika Otolaryngologii i Laryngologii Onkologicznej, Uniwersytet Medyczny w Łodzi
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Fungal rhinosinusitis: a retrospective microbiologic and pathologic review of 400 patients at a single university medical center. Int J Otolaryngol 2012; 2012:684835. [PMID: 22518160 PMCID: PMC3299344 DOI: 10.1155/2012/684835] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 10/26/2011] [Accepted: 10/31/2011] [Indexed: 12/02/2022] Open
Abstract
Fungal Rhinosinusitis (FRS) is a well known entity, but only in more recent times have the types of FRS been more fully defined. In this study, we evaluate the diagnosis of FRS in a single medical center. Cases were divided into 2 main categories, non-invasive and invasive. Non-invasive FRS included fungus ball (FB) and allergic fungal rhinosinusitis (AFRS). Invasive FRS included acute invasive fungal rhinosinusitis (AIFRS), chronic invasive fungal rhinosinusitis (CIFRS), and chronic invasive granulomatous fungal rhinosinusitis (CGFRS). Fungal culture data, if available was reviewed. 400 patients with FRS were identified. 87.25% were non-invasive (45% AFRS, 40% FB, and 2% combined AFRS and FB and 12.5% were invasive 11% AIFRS 1.2% CIFRS 0.5% CGFRS. One patient (0.25%) had combined FB/CGFRS. Aspergillus sp. or dematiaceous species were the most common fungi isolated in AFS while Aspergillus sp. was most common in FB and AIFRS. In our experience, most FRS is non-invasive. In our patient population, invasive FRS is rare with AIFRS representing >90% of cases. Culture data supports that a variety of fungal agents are responsible for FRS, but Aspergillus sp. appears to be one of the most common organisms in patients with FRS.
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Woods CM, Hooper DN, Ooi EH, Tan LW, Carney AS. Human lysozyme has fungicidal activity against nasal fungi. Am J Rhinol Allergy 2011; 25:236-40. [PMID: 21639997 DOI: 10.2500/ajra.2011.25.3631] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The cationic antimicrobial peptide lysozyme is the most prevalent innate immune protein in nasal secretions but there is a paucity of research regarding its role in paranasal sinus disease. Lysozyme is generally regarded as an antibacterial agent; however, some data suggest activity toward yeast. This study was designed to determine if lysozyme displays fungicidal activity toward fungi commonly identified in patients with chronic rhinosinusitis (CRS) or fungal sinusitis. METHODS Using a colony-forming unit assay the fungicidal activity of lysozyme (0, 0.5, 5, and 50 micromolar; 0- to 7-hour treatment) was tested against strains of Aspergillus fumigatus, the yeast Candida albicans, and other fungi commonly identified in mucin of patients with CRS. Fungi cultured directly from the mucin of two CRS patients were also tested to determine if they were resistant to the fungicidal activity of lysozyme. RESULTS The fungicidal effect of lysozyme was both concentration and time dependent. After 7-hour treatment lysozyme (5 micromolar) had >80% fungicidal activity against A. fumigatus, Penicillium sp., Acremonium sp., C. albicans, and Candida parapsilosis. The fungicidal activity of lysozyme toward Alternaria alternata could not be determined. Lysozyme was also fungicidal toward the clinical isolates A. fumigatus and Aspergillus terreus cultured from the mucin of CRS patients. CONCLUSION Lysozyme displays fungicidal activity toward many fungi commonly identified in patients with CRS, as well as clinical fungi isolates cultured from the mucin of CRS patients. Additional studies are required to determine the regulation of lysozyme in CRS.
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Affiliation(s)
- Charmaine M Woods
- Flinders ENT, Department of Surgery, Flinders University and Flinders Medical Centre, Adelaide, Australia
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Montone KT, LiVolsi VA, Lanza DC, Kennedy DW, Palmer J, Chiu AG, Feldman MD, Loevner LA, Nachamkin I. In situ hybridization for specific fungal organisms in acute invasive fungal rhinosinusitis. Am J Clin Pathol 2011; 135:190-9. [PMID: 21228359 DOI: 10.1309/ajcpqlyzbdf30htm] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Acute invasive fungal rhinosinusitis (AIFRS) most commonly occurs in immunosuppressed patients. The identification of fungal subtypes is important for management, and cultures can be negative. We studied 55 specimens from 23 patients with AIFRS (Rhizopus sp, 6; Aspergillus sp, 8; Fusarium sp, 1; Alternaria sp, 1; and culture negative, 7) using in situ hybridization (ISH) with biotin-labeled oligonucleotide probes targeting Aspergillus sp, Fusarium sp, Rhizopus sp, and a sequence identified in dematiaceous fungi. Ribosomal RNA preservation was established by using a pan-fungal probe. Nucleic acid preservation was seen in 18 patients (33 specimens [60%]). ISH using the specific fungal probes highlighted the respective fungal organisms in all culture-positive cases with adequate negative controls. Of the 7 culture-negative AIFRS cases, 4 had preserved fungal sequences. Of these cases, 2 additional cases of Aspergillus and 1 additional case of dematiaceous species were identified. In our study, 60% of AIFRS cases had fungal nucleic acid preservation. ISH can effectively identify fungi in AIFRS. ISH for specific fungal pathogens may aid in species identification in specimens with negative cultures.
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Affiliation(s)
- Kathleen T. Montone
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Virginia A. LiVolsi
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA
| | | | - David W. Kennedy
- Department of Otorhinolaryngology, University of Pennsylvania Medical Center, Philadelphia, PA
| | - James Palmer
- Department of Otorhinolaryngology, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Alexander G. Chiu
- Department of Otorhinolaryngology, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Michael D. Feldman
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Laurie A. Loevner
- Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Irving Nachamkin
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA
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Chakrabarti A, Chatterjee SS, Das A, Shivaprakash MR. Invasive aspergillosis in developing countries. Med Mycol 2010; 49 Suppl 1:S35-47. [PMID: 20718613 DOI: 10.3109/13693786.2010.505206] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To review invasive aspergillosis (IA) in developing countries, we included those countries, which are mentioned in the document of the International Monetary Fund (IMF), called the Emerging and Developing Economies List, 2009. A PubMed/Medline literature search was performed for studies concerning IA reported during 1970 through March 2010 from these countries. IA is an important cause of morbidity and mortality of hospitalized patients of developing countries, though the exact frequency of the disease is not known due to inadequate reporting and facilities to diagnose. Only a handful of centers from India, China, Thailand, Pakistan, Bangladesh, Sri Lanka, Malaysia, Iran, Iraq, Saudi Arabia, Egypt, Sudan, South Africa, Turkey, Hungary, Brazil, Chile, Colombia, and Argentina had reported case series of IA. As sub-optimum hospital care practice, hospital renovation work in the vicinity of immunocompromised patients, overuse or misuse of steroids and broad-spectrum antibiotics, use of contaminated infusion sets/fluid, and increase in intravenous drug abusers have been reported from those countries, it is expected to find a high rate of IA among patients with high risk, though hard data is missing in most situations. Besides classical risk factors for IA, liver failure, chronic obstructive pulmonary disease, diabetes, and tuberculosis are the newly recognized underlying diseases associated with IA. In Asia, Africa and Middle East sino-orbital or cerebral aspergillosis, and Aspergillus endophthalmitis are emerging diseases and Aspergillus flavus is the predominant species isolated from these infections. The high frequency of A. flavus isolation from these patients may be due to higher prevalence of the fungus in the environment. Cerebral aspergillosis cases are largely due to an extension of the lesion from invasive Aspergillus sinusitis. The majority of the centers rely on conventional techniques including direct microscopy, histopathology, and culture to diagnose IA. Galactomannan, β-D glucan test, and DNA detection in IA are available only in a few centers. Mortality of the patients with IA is very high due to delays in diagnosis and therapy. Antifungal use is largely restricted to amphotericin B deoxycholate and itraconazole, though other anti-Aspergillus antifungal agents are available in those countries. Clinicians are aware of good outcome after use of voriconazole/liposomal amphotericin B/caspofungin, but they are forced to use amphotericin B deoxycholate or itraconazole in public-sector hospitals due to economic reasons.
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Affiliation(s)
- Arunaloke Chakrabarti
- Department of Medical Microbiology, Postgraduate Institute of Medical Education & Research, Chandigarh, India.
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Abstract
Inflammatory diseases of the nose and paranasal sinus are commonly encountered in diagnostic histopathology. This review describes the possible manifestations of the common diseases as well as highlighting some of the uncommon causes of sinonasal inflammation which may have importance for treatment and prognosis. The diagnosis of fungal sinusitis is primarily histological. It is important to distinguish between invasive and non-invasive fungal sinusitis, the latter including allergic fungal sinusitis characterized by 'allergic mucin' and scanty fungal hyphae. Nasal eosinophilia is a feature of both allergic and non-allergic rhinosinusitis and a wide range of secondary changes in inflammatory polyps may lead to diagnostic confusion. Nasal biopsies are often taken from perforations or inflammatory masses to confirm or exclude granulomatous diseases. There is a broad differential diagnosis for granulomatous sinonasal disease and pathologists should appreciate the diagnostic histological and clinical features of these conditions.
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Affiliation(s)
- Tim Helliwell
- is a Reader in the Division of Pathology, University of Liverpool, Liverpool, UK. Conflicts of interest: none
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Abstract
Abstract
Fungal rhinosinusitis (FRS) refers to a spectrum of disease ranging from benign colonization of the nose and sinuses by pathogenic fungi to acute invasive and fatal inflammation extending to the orbit and brain. FRS is classified into two categories: invasive and noninvasive. Invasive FRS may again be subcategorized into acute invasive (fulminant) FRS, granulomatous invasive FRS, and chronic invasive FRS; while noninvasive FRS is subcategorized into localized fungal colonization, sinus fungal ball and eosinophil related FRS (including allergic fungal rhinosinusitis, eosinophilic fungal rhinosinusitis). This classification is not without controversies, and intermediate and semi-invasive forms may also exist in particular patients. Acute invasive FRS is an increasingly common disease worldwide among the immunocompromised patients and caused most frequently by Rhizopus oryzae, and Aspergillus spp. Granulomatous invasive FRS has mostly been reported from Sudan, India, and Pakistan and is characterized by noncaseating granuloma formation, vascular proliferation, vasculitis, perivascular fibrosis, sparse hyphae in tissue, and isolation of A. flavus from sinus contents. Chronic invasive FRS is an emerging entity occurring commonly in diabetics and patients on corticosteroid therapy, and is characterized by dense accumulation of hyphae, occasional presence of vascular invasion, sparse inflammatory reaction, involvement of local structures, and isolation of A. fumigatus. While localized fungal colonization describes the most benign of all fungal sinusitis in the superficial nasal crusts, sinus fungal ball is a dense mycetoma like aggregate of fungal hyphae in diseased sinuses. Common in southern Europe, especially France, majority of them are sterile on culture while 30-50% may yield Aspergillus spp. The definitions and pathogenesis of the group of syndromes in eosinophil related FRS (AFRS, EFRS) are contentious and a matter of intense research among otolaryngologists, pathologists, immunologists and microbiologists. While dematiaceous fungi are the foremost initiators of these syndromes in the west, Aspergillus flavus is the predominant pathogen in India and the Middle-East.
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