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Salah H, Houbraken J, Boekhout T, Almaslamani M, Taj-Aldeen SJ. Molecular epidemiology of clinical filamentous fungi in Qatar beyond Aspergillus and Fusarium with notes on the rare species. Med Mycol 2023; 61:6967136. [PMID: 36592959 PMCID: PMC9874029 DOI: 10.1093/mmy/myac098] [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] [Received: 09/09/2022] [Revised: 12/12/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023] Open
Abstract
Due to an increasing number of patients at risk (i.e., those with a highly compromised immune system and/or receiving aggressive chemotherapy treatment), invasive fungal infections (IFI) are increasingly being reported and associated with high mortality rates. Aspergillus spp., particularly A. fumigatus, is the major cause of IFI caused by filamentous fungi around the world followed by Fusarium spp., however, other fungi are emerging as human pathogens. The aim of this study was to explore the epidemiology and prevalence of the non-Aspergillus and non-Fusarium filamentous fungi in human clinical samples over an 11-year period in Qatar using molecular techniques. We recovered 53 filamentous fungal isolates from patients with various clinical conditions. Most patients were males (75.5%), 9.4% were immunocompromised, 20.7% had IFI, and 11.3% died within 30 days of diagnosis. The fungal isolates were recovered from a variety of clinical samples, including the nasal cavity, wounds, respiratory samples, body fluids, eye, ear, tissue, abscess, and blood specimens. Among the fungi isolated, 49% were dematiaceous fungi, followed by Mucorales (30%), with the latter group Mucorales being the major cause of IFI (5/11, 45.5%). The current study highlights the epidemiology and spectrum of filamentous fungal genera, other than Aspergillus and Fusarium, recovered from human clinical samples in Qatar, excluding superficial infections, which can aid in the surveillance of uncommon and emerging mycoses.
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Affiliation(s)
- Husam Salah
- To whom correspondence should be addressed. Husam Salah, M.Sc. Division
of Microbiology, Department of Laboratory Medicine and Pathology, Hamad Medical
Corporation, Doha, Qatar, PO Box 3050. Tel: +97-444-391-047. E-mail: ;
| | - Jos Houbraken
- Applied and Industrial Mycology, Westerdijk Fungal Biodiversity
Institute, Utrecht, Netherlands
| | - Teun Boekhout
- Yeast Research, Westerdijk Fungal Biodiversity Institute,
Utrecht, Netherlands,Institute of Biodiversity and Ecosystem Dynamics (IBED), University of
Amsterdam, Amsterdam, The
Netherlands
| | | | - Saad J Taj-Aldeen
- Division of Microbiology, Department of Laboratory Medicine and
Pathology, Hamad Medical Corporation, Doha,
Qatar,Department of Biology, College of Science, University of
Babylon, Hilla, Iraq
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Tovmasyan AS, Shadrin GB, Kolbanova IG, Ramazanov SR, Mosin VV, Filina EV. [Chronic fungal sinusitis caused by Schizophyllum commune]. Vestn Otorinolaringol 2023; 88:89-92. [PMID: 37184561 DOI: 10.17116/otorino20228802189] [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: 05/16/2023]
Abstract
Treatment of patients with fungal sinusitis, in some cases, does not lead to complete sinus sanitation, which may be due to insufficient surgical intervention and/or incorrectly selected antimycotic therapy. Treatment of such patients must necessarily include the complete removal of fungal masses from the affected sinus and the further use of antimycotics that ensure complete elimination of the pathogen. A clinical case of chronic fungal operated isolated sphenoiditis caused by the fungus Schizophyllum commune is presented. For extensive drainage of the sphenoid sinus, the patient underwent translamellar sphenoidotomy on the right with further antifungal therapy.
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Affiliation(s)
- A S Tovmasyan
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
| | - G B Shadrin
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
| | - I G Kolbanova
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
| | - S R Ramazanov
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
| | - V V Mosin
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
| | - E V Filina
- Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow, Russia
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Itoh N, Akazawa N, Murakami H, Ishibana Y, Takahashi Y, Hosoda W, Yaguchi T, Kamei K. A Schizophyllum commune fungus ball in a lung cancer cavity: a case report. BMC Infect Dis 2021; 21:1052. [PMID: 34627188 PMCID: PMC8502358 DOI: 10.1186/s12879-021-06739-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/27/2021] [Indexed: 11/21/2022] Open
Abstract
Background Schizophyllum commune is a basidiomycete that lives in the environment and can cause infections, mainly those of the respiratory system. Although S. commune is increasingly reported as a cause of allergic bronchopulmonary mycosis and sinusitis, cases of fungal ball formation are extremely uncommon. Identification of S. commune is difficult using routine mycological diagnostic methods, and in clinically suspicious cases, internal transcribed spacer sequencing should be used for diagnosis. Here, we report a first case of lung cancer with a fungal ball formation of S. commune, confirmed by analyzing the internal transcribed spacer. Case presentation A 76-year-old man with diabetes and hypertension was admitted to the hospital with a chief complaint of hemosputum, which he had for about 19 months. A computed tomography image of the patient’s chest showed a cavity and internal nodule in the left upper lobe of his lung. A left upper lobectomy was performed, and histopathological examination revealed squamous cell carcinoma of the lung and a fungal ball. The isolate from the surgical specimen was identified as S. commune by analyzing the internal transcribed spacer. The patient had no recurrence of the infection during 5 months of follow-up. Conclusions Only three cases of lung fungal balls caused by S. commune have been previously reported, and this is the first case of lung cancer cavity with a fungal ball formation. In cases of fungal ball formation in the lung, S. commune should be considered a possible causative microorganism.
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Affiliation(s)
- Naoya Itoh
- Division of Infectious Diseases, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan. .,Collaborative Chairs Emerging and Reemerging Infectious Diseases, National Center for Global Health and Medicine, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Nana Akazawa
- Division of Infectious Diseases, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan
| | - Hiromi Murakami
- Division of Infectious Diseases, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan
| | - Yuichi Ishibana
- Division of Infectious Diseases, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan
| | - Yusuke Takahashi
- Department of Thoracic Surgery, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan
| | - Waki Hosoda
- Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan
| | - Takashi Yaguchi
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chiba, 260-8673, Japan
| | - Katsuhiko Kamei
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chiba, 260-8673, Japan
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