1
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Shimizu T, Sawamura M, Kondoh A, Yarita K, Kamei K, Mabuchi T. A rare case of deep cutaneous fungal infection caused by a Didymellaceae species. J Dermatol 2023; 50:e375-e376. [PMID: 37424099 DOI: 10.1111/1346-8138.16882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 05/19/2023] [Accepted: 06/19/2023] [Indexed: 07/11/2023]
Affiliation(s)
- Tomomichi Shimizu
- Department of Dermatology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Miho Sawamura
- Department of Dermatology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Akio Kondoh
- Department of Dermatology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Kyoko Yarita
- Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan
| | - Katsuhiko Kamei
- Medical Mycology Research Center, Chiba University, Chuo-ku, Chiba, Japan
| | - Tomotaka Mabuchi
- Department of Dermatology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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2
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Doh JY, Rintarhat P, Jung WH, Kim HS. Truncal acne following JAK inhibitor use in vitiligo with rare opportunistic fungal infections: Two case reports. JAAD Case Rep 2023; 37:123-127. [PMID: 37405176 PMCID: PMC10315772 DOI: 10.1016/j.jdcr.2023.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023] Open
Affiliation(s)
- Jee Yun Doh
- Department of Dermatology, Seoul St. Mary`s Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Piyapat Rintarhat
- Department of Systems Biotechnology, Chung-Ang University, Anseong, Republic of Korea
| | - Won Hee Jung
- Department of Systems Biotechnology, Chung-Ang University, Anseong, Republic of Korea
| | - Hei Sung Kim
- Department of Dermatology, Incheon St. Mary’s Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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3
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Faccin M, Rodrigues Hoffmann A. Paraconiothyrium cyclothyrioides, a novel cutaneous fungal pathogen in a dog and a cat. Vet Dermatol 2023. [PMID: 36919229 DOI: 10.1111/vde.13155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 03/16/2023]
Abstract
A dog and a cat presented with pyogranulomatous mycotic pododermatitis. Panfungal PCR and next-generation sequencing identified Paraconiothyrium cyclothyrioides with 100% identity. Paraconiothyrium cyclothyrioides can rarely cause cutaneous infection and systemic disease in immunocompromised humans. This is the first report of infections in domestic animal species.
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Affiliation(s)
- Mayane Faccin
- Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Aline Rodrigues Hoffmann
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
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4
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Malaure C, Hoang S, Bagny K, Tauziède-Espariat A, Garcia-Hermoso D, Kamus L, Traversier N, Miltgen G, Garrigos T. Multifocal cutaneous phaeohyphomycosis caused by Paraconiothyrium cyclothyrioides in an immunocompromised patient: A case report. J Dermatol 2023. [PMID: 36601708 DOI: 10.1111/1346-8138.16706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023]
Affiliation(s)
- Célie Malaure
- Department of Bacteriology, University Hospital Centre Félix Guyon, Saint-Denis, France
| | - Stella Hoang
- Department of Infectious Diseases, University Hospital Centre Félix Guyon, Saint-Denis, France
| | - Kelly Bagny
- Department of Dermatology, CHU Félix Guyon, Saint-Denis, France
| | - Arnault Tauziède-Espariat
- Department of Neuropathology, GHU Paris Psychiatry and Neurosciences, Sainte-Anne Hospital, Paris, France
| | - Dea Garcia-Hermoso
- Centre National de la Recherche Scientifique, Centre National de Référence Mycoses Invasives et Antifongiques, Unité de Mycologie Moléculaire, UMR2000, Paris, France
| | - Laure Kamus
- Department of Bacteriology, University Hospital Centre Félix Guyon, Saint-Denis, France.,UMR Processus Infectieux en Milieu Insulaire Tropical, CNRS 9192, INSERM U1187, IRD 249, University of La Réunion, Sainte-Clotilde, France
| | - Nicolas Traversier
- Department of Bacteriology, University Hospital Centre Félix Guyon, Saint-Denis, France
| | - Guillaume Miltgen
- Department of Bacteriology, University Hospital Centre Félix Guyon, Saint-Denis, France.,UMR Processus Infectieux en Milieu Insulaire Tropical, CNRS 9192, INSERM U1187, IRD 249, University of La Réunion, Sainte-Clotilde, France.,Centre Régional en Antibiothérapie (CRATb) de La Réunion, Saint-Denis, France
| | - Thomas Garrigos
- Department of Bacteriology, University Hospital Centre Félix Guyon, Saint-Denis, France.,UMR Processus Infectieux en Milieu Insulaire Tropical, CNRS 9192, INSERM U1187, IRD 249, University of La Réunion, Sainte-Clotilde, France
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5
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First Report of Neocucurbitaria unguis- hominis Keratitis. J Fungi (Basel) 2022; 9:jof9010008. [PMID: 36675829 PMCID: PMC9866073 DOI: 10.3390/jof9010008] [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: 11/23/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Coelomycetous fungi are among the emerging causes of infections and have been involved in many kinds of infections, including keratitis and endophtalmitis. Here, we present the first case of keratitis caused by Neocucurbitaria unguis-hominis, a coelomycetous fungus belonging to the family Cucurbitariaceae. In this case report, we describe the clinical presentation of a 56-year-old woman, a regular contact lens wearer, who was treated for pain in her right eye and fixed spot vision after an injury with plant debris. On examination, a corneal ulcer was observed, the foreign body was removed, and topical eye-drop therapy was started. After an initial improvement, the patient returned three weeks later due to a recurrence of discomfort in her right eye, observing the persistence of the corneal ulcer. Corneal scrapings were taken for culture, growing a filamentous fungus after seven days, which was identified by sequencing the fungal internal transcribed spacer region. It should be noted that microbiological identification of the coelomycetes in the clinical laboratory is not easy because of their difficulty in sporulating, making molecular techniques based on the amplification and sequencing of appropriate phylogenetic markers essential. Identification of these fungi is mandatory in order to optimise treatment due to the difficulty in eradicating them with antifungal treatment, requiring surgery in 50% of cases.
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6
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Aljundi M, Brun S, Akhoundi M, Didier M, Jabbour R, Izri A, Caux F, Bohelay G. Recurrent Subcutaneous Phaeohyphomycosis Due to Medicopsis romeroi: A Case Report in a Dermatomyositis Patient and Review of the Literature. Microorganisms 2022; 11:microorganisms11010003. [PMID: 36677294 PMCID: PMC9867221 DOI: 10.3390/microorganisms11010003] [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: 11/29/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Medicopsis romeroi phaeohyphomycosis is increasingly reported in immunocompromised patients living in or originating from tropical and subtropical areas. We report a case of subcutaneous phaeohyphomycosis caused by M. romeroi in a 56-year-old Malian woman residing in France for 20 years. She developed a small nodule on her dominant hand's ring finger 15 months after starting immunosuppressive medications for paraneoplastic dermatomyositis. A first surgical debridement was followed by a local recurrence. Despite a second surgical excision combined with posaconazole treatment, the infection recurred one year after antifungal therapy discontinuation. A wide excision was performed again, and antifungal therapy was resumed and maintained for six months, resulting in the absence of relapse during the 18 months following the surgery. This case highlighted the high risk of relapse in immunocompromised patients, suggesting the need for long-term follow-up and prolonged antifungal treatment following surgical excision in cases with sustained immunosuppression. The literature review was performed according to PRISMA guidelines and included 51 scientific publications. A noteworthy predominance of the subcutaneous phaeohyphomycosis presentation was found in immunocompromised patients, whereas eumycetoma had been reported in apparently healthy individuals. A combination of complete excision with antifungal treatment seemed to confer the best outcome.
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Affiliation(s)
- Mohanad Aljundi
- Department of Dermatology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
- Correspondence: ; Tel.: +33-1-48-95-51-89; Fax: +33-1-48-95-51-87
| | - Sophie Brun
- Department of Parasitology-Mycology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
- Inserm UMR 1125 Li2P, UFR SMBH Léonard de Vinci, Université Sorbonne Paris Nord (USPN), 93000 Bobigny, France
| | - Mohammad Akhoundi
- Department of Parasitology-Mycology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
| | - Morgane Didier
- Department of Pneumology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), 93000 Bobigny, France
| | - Roula Jabbour
- Department of Pathology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), 93000 Bobigny, France
| | - Arezki Izri
- Department of Parasitology-Mycology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
- Inserm UMR 1125 Li2P, UFR SMBH Léonard de Vinci, Université Sorbonne Paris Nord (USPN), 93000 Bobigny, France
| | - Frédéric Caux
- Department of Dermatology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
- Inserm UMR 1125 Li2P, UFR SMBH Léonard de Vinci, Université Sorbonne Paris Nord (USPN), 93000 Bobigny, France
| | - Gérôme Bohelay
- Department of Dermatology, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), 93000 Bobigny, France
- Inserm UMR 1125 Li2P, UFR SMBH Léonard de Vinci, Université Sorbonne Paris Nord (USPN), 93000 Bobigny, France
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7
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Nissan S, Boelens J, Lagrou K, Roels D. Pyrenocheata unguis-hominis: A new cause of fungal keratitis in a contact lens wearer. Am J Ophthalmol Case Rep 2022; 28:101731. [PMCID: PMC9614820 DOI: 10.1016/j.ajoc.2022.101731] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/12/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose Observations Conclusions
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Affiliation(s)
- Sima Nissan
- Department of Ophthalmology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium,Corresponding author.
| | - Jerina Boelens
- Department of Clinical Biology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Katrien Lagrou
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Herestraat 49, 3000, Leuven, Belgium,National Reference Centre for Mycosis, Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Dimitri Roels
- Department of Ophthalmology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
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8
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Mori H, Hayashi S, Okamoto M, Nagaoka S, Suzuki T, Igawa K. Paraconiothyrium cyclothyrioides infected on the sole of a healthy person: A case report. J Dermatol 2022; 49:e278-e279. [PMID: 35466465 DOI: 10.1111/1346-8138.16403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/11/2022] [Accepted: 04/05/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Hitomi Mori
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Shujiro Hayashi
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Maki Okamoto
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Sayuko Nagaoka
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Toshihiro Suzuki
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Ken Igawa
- Department of Dermatology, Dokkyo Medical University School of Medicine, Tochigi, Japan
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9
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Ahmed SA, Engel T, Zoll J, Godschalk PCR, Klaasen R, Moreno L, van der Lee H, Verweij PE, de Hoog S. Meanderella rijsii, a new opportunist in the fungal order Pleosporales. Microbes Infect 2022; 24:104932. [PMID: 35032673 DOI: 10.1016/j.micinf.2022.104932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/03/2022] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
Subcutaneous phaeohyphomycosis is an implantation disease caused by melanized fungi and affect both immunocompetent as well as immunocompromised individuals. Diagnosis and treatment require proper isolation and accurate identification of the causative pathogen. We isolated a novel fungus from a case of subcutaneous phaeohyphomycosis in an immunocompetent patient. The 56-year-old patient suffered from a slowly progressive swelling on the metatarsophalangeal join of the left food. The isolated fungus lacked sporulation and sequences of the ribosomal operon did not match with any known species. In a multi-locus phylogenetic analysis involving five markers, the fungus formed a unique lineage in the order Pleosporales, family Trematosphaeriaceae. A new genus, Meanderella and a new species, M. rijsii are here proposed to accommodate the clinical isolate. Whole genome analysis of M. rijsii revealed a number of genes that can be linked to pathogenicity and virulence. Further studies are however needed to understand the role of each gene in the pathogenic process and to determine the origin of pathogenicity in the family of Trematosphaeriaceae.
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Affiliation(s)
- Sarah A Ahmed
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc - CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands; Foundation Atlas of Clinical Fungi, Hilversum, the Netherlands.
| | - Tobias Engel
- Laboratory for Medical Microbiology and Public Health, Hengelo, the Netherlands
| | - Jan Zoll
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc - CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands
| | - Peggy C R Godschalk
- Department of Medical Microbiology and Medical Immunology, Meander Medical Center, Amersfoort, the Netherlands
| | - Ruth Klaasen
- Department of Rheumatology, Meander Medical Center, Amersfoort, the Netherlands
| | | | - Henrich van der Lee
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc - CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands
| | - Paul E Verweij
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc - CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands
| | - Sybren de Hoog
- Department of Medical Microbiology, Radboud University Medical Center and Radboudumc - CWZ Center of Expertise for Mycology, Nijmegen, the Netherlands; Foundation Atlas of Clinical Fungi, Hilversum, the Netherlands; Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education of Guizhou & Guizhou Talent Base for Microbiology and Human Health, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
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10
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Valenzuela-Lopez N, Martin-Gomez MT, Los-Arcos I, Stchigel AM, Guarro J, Cano-Lira JF. A new pleosporalean fungus isolated from superficial to deep human clinical specimens. Med Mycol 2021; 59:278-288. [PMID: 32717745 DOI: 10.1093/mmy/myaa055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 12/22/2022] Open
Abstract
Human infections by pleosporalean fungi (class Dothideomycetes, phylum Ascomycota) are rarely reported. Because their identification is challenging using morphological characterization, several phylogenetic markers must be sequenced for an accurate identification and taxonomical placement of the isolates. Three isolates of clinical origin were phenotypically characterized, but due to the absence of relevant morphological traits, D1-D2 domains of the 28S nrRNA gene (LSU), the internal transcribed spacer region (ITS) of the nrRNA, and fragments of the RNA polymerase II subunit 2 (rpb2) and translation elongation factor 1-alpha (tef1) genes were sequenced to allow a phylogenetic analysis that would solve their phylogenetic placement. That analysis revealed that these isolates did not match any previously known pleosporalean genera, and they are proposed here as the new fungal genus, Gambiomyces. Unfortunately, the isolates remained sterile, which, consequently, made the morphological description of the reproductive structures impossible. Future studies should try to understand the behaviour of this fungus in nature as well as its characteristics as an opportunistic fungal pathogen. Molecular identification is becoming an essential tool for proper identification of Dothideomycetes of clinical origin. LAY ABSTRACT We describe a new pleosporalen pathogenic fungus, Gambiomyces profunda, found in superficial to deep samples from a human patient. Because all strains remained sterile, the fungus was finally identified following a phylogenetic analysis by using four different molecular markers.
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Affiliation(s)
- Nicomedes Valenzuela-Lopez
- Universitat Rovira i Virgili, Medical School, Mycology Unit, and IISPV, C/ Sant Llorenç 21, 43201 Reus, Spain.,Unidad de Microbiología, Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Antofagasta, Antofagasta, Chile
| | | | - Ibai Los-Arcos
- Infectious Diseases Department, Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | - Alberto M Stchigel
- Universitat Rovira i Virgili, Medical School, Mycology Unit, and IISPV, C/ Sant Llorenç 21, 43201 Reus, Spain
| | - Josep Guarro
- Universitat Rovira i Virgili, Medical School, Mycology Unit, and IISPV, C/ Sant Llorenç 21, 43201 Reus, Spain
| | - José F Cano-Lira
- Universitat Rovira i Virgili, Medical School, Mycology Unit, and IISPV, C/ Sant Llorenç 21, 43201 Reus, Spain
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11
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Do mangrove habitats serve as a reservoir for Medicopsis romeroi, a clinically important fungus. Mycol Prog 2020. [DOI: 10.1007/s11557-020-01623-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Danion F, Duréault A, Gautier C, Senechal A, Persat F, Bougnoux ME, Givel C, Couderc LJ, Lortholary O, Garcia-Hermoso D, Lanternier F. Emergence of azole resistant- Aspergillus fumigatus infections during STAT3-deficiency. J Med Microbiol 2020; 69:844-849. [PMID: 32459615 DOI: 10.1099/jmm.0.001200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Signal transducer and activator of transcription 3 (STAT3) deficiency is a rare primary immunodeficiency associated with increased susceptibility to bacterial and fungal infections, notably pulmonary aspergillosis.Aim. We describe the emergence of azole-resistant Aspergillus fumigatus infections in STAT3-deficient patients.Methodology. During a retrospective study of 13 pulmonary aspergillosis cases in STAT3-deficient patients conducted in France, we identified patients infected with azole-resistant A. fumigatus isolates.Results. Two out of the 13 STAT3-deficient patients with aspergillosis had azole-resistant A. fumigatus infection, indicating an unexpectedly high prevalence of resistance. The first patient with STAT3 deficiency presented several flares of allergic bronchopulmonary aspergillosis-like episodes. He was chronically infected with two azole-resistant A. fumigatus isolates (TR34/L98). Despite prolonged antifungal treatment, including caspofungin and amphotericin B, the patient was not able to clear the azole-resistant A. fumigatus. The second patient had chronic cavitary pulmonary aspergillosis (CCPA). The A. fumigatus isolate was initially azole susceptible but harboured three F46Y, M172V and E427K point mutations. Despite prolonged antifungal therapies, lesions worsened and the isolate became resistant to all azoles. Surgery and caspofungin treatments were then required to cure CCPA. Resistance was probably acquired from the environment (TR34/L98) in the first case whereas resistance developed under antifungal treatments in the second case. These infections required long-term antifungal treatments and surgery.Conclusions. The emergence of azole-resistant A. fumigatus infections in STAT3-deficiency dramatically impacts both curative and prophylactic antifungal strategies. Physicians following patients with primary immune-deficiencies should be aware of this emerging problem as it complicates management of the patient.
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Affiliation(s)
- François Danion
- Present address: Unite de Neuropathologie expérimentale, Institut Pasteur, Paris, France
- Aspergillus Unit, Institut Pasteur, Paris, France
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Amélie Duréault
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Cécile Gautier
- Institut Pasteur, CNRS, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Molecular Mycology Unit, UMR2000, Paris, France
| | | | - Florence Persat
- Hospices Civils de Lyon, Institut des Agents Infectieux, Service de Parasitologie et Mycologie Médicale, Université Lyon 1, Lyon, France
| | - Marie-Elisabeth Bougnoux
- Fungal Biology and Pathogenicity Unit, Department of Mycology, Institut Pasteur, INRA, Paris, France
- Université de Paris, Unité de Parasitologie-Mycologie service de Microbiologie, Hôpital Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Claire Givel
- UPRES EA 220, Suresnes, France
- Faculté des Sciences de la Santé Simone Veil, Université Versailles-Saint-Quentin-en-Yvelines, Versailles, France
- Service de Pneumologie, Hôpital Foch, Suresnes, France
| | - Louis-Jean Couderc
- Faculté des Sciences de la Santé Simone Veil, Université Versailles-Saint-Quentin-en-Yvelines, Versailles, France
- UPRES EA 220, Suresnes, France
- Service de Pneumologie, Hôpital Foch, Suresnes, France
| | - Olivier Lortholary
- Institut Pasteur, CNRS, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Molecular Mycology Unit, UMR2000, Paris, France
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Dea Garcia-Hermoso
- Institut Pasteur, CNRS, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Molecular Mycology Unit, UMR2000, Paris, France
| | - Fanny Lanternier
- Université de Paris, Centre d'Infectiologie Necker Pasteur, IHU Imagine, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Institut Pasteur, CNRS, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Molecular Mycology Unit, UMR2000, Paris, France
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Řehulka J, Kubátová A, Hubka V. Swim bladder mycosis in farmed rainbow trout Oncorhynchus mykiss caused by Phoma herbarum and experimental verification of pathogenicity. DISEASES OF AQUATIC ORGANISMS 2020; 138:237-246. [PMID: 32270764 DOI: 10.3354/dao03464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, spontaneous swim bladder mycosis was documented in a farmed fingerling rainbow trout from a raceway culture system. At necropsy, the gross lesions included a thickened swim bladder wall, and the posterior portion of the swim bladder was enlarged due to massive hyperplasia of muscle. A microscopic wet mount examination of the swim bladder contents revealed abundant septate hyphae, and histopathological examination showed periodic acid-Schiff-positive mycelia in the lumen and wall of the swim bladder. Histopathological examination of the thickened posterior swim bladder revealed muscle hyperplasia with expansion by inflammatory cells. The causative agent was identified as Phoma herbarum through morphological analysis and DNA sequencing. The disease was reproduced in rainbow trout fingerlings using intraperitoneal injection of a spore suspension. Necropsy in dead and moribund fish revealed extensive congestion and haemorrhages in the serosa of visceral organs and in liver and abdominal serosanguinous fluid. Histopathological examination showed severe hepatic congestion, sinusoidal dilatation, Kupffer cell reactivity, leukostasis and degenerative changes. Fungi were disseminated to the liver, pyloric caeca, kidney, spleen and heart. Although infections caused by Phoma spp. have been repeatedly reported in fish, species identification has been hampered by extensive taxonomic changes. The results of this study confirmed the pathogenicity of P. herbarum in salmonids by using a reliably identified strain during experimental fish infection and provides new knowledge regarding the course of infection.
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Affiliation(s)
- J Řehulka
- Department of Zoology, Silesian Museum, 746 01 Opava, Czech Republic
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Valenzuela-Lopez N, Magaña-Dueñas V, Cano-Lira JF, Wiederhold N, Guarro J, Stchigel AM. Two new species of Gloniopsis (Hysteriales, Ascomycota) from clinical specimens: Morphological and molecular characterisation. Mycoses 2019; 62:1164-1173. [PMID: 31529527 DOI: 10.1111/myc.13006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND The coelomycetes comprise a wide range of fungal species distributed in at least three different classes of the phylum Ascomycota. These are morphologically characterised by producing their conidia inside of fruiting bodies called pycnidia or acervuli, and only a reduced number of species are able to cause human infections. However, their identification in the clinical laboratory is often difficult, due to their few morphological features or because they remain sterile. MATERIALS AND METHODS In the present study, three isolates of coelomycetes of clinical origin were phenotypically and molecularly studied, by sequencing the D1-D2 fragment of the 28S nuclear ribosomal RNA (nrRNA) (LSU), the internal transcribed spacer region (ITS1-5.8S-ITS2) and a fragment of the translation elongation factor 1-alpha (tef1) genes. RESULTS AND CONCLUSIONS As result of the molecular analysis, the isolates were identified as belonging to the genus Gloniopsis (order Hysteriales, Dothideomycetes) but without the characteristics of any of the species described so far. Therefore, we propose the new species Gloniopsis percutanea and Gloniopsis pneumoniae. Furthermore, this study revealed that some isolates from clinical specimens identified previously as Rhytidhysteron spp. were misidentified, and considering the few studies in the order Hysteriales and the scarce number of sequences of phylogenetic markers, future revisions of this order should be performed to clarify their taxonomy and obtain a better identification from isolates involved in human mycoses.
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Affiliation(s)
- Nicomedes Valenzuela-Lopez
- Mycology Unit, Medical School and IISPV, University Rovira i Virgili, Reus, Spain.,Microbiology Unit, Medical Technology Department, Faculty of Health Science, University of Antofagasta, Antofagasta, Chile
| | | | - José F Cano-Lira
- Mycology Unit, Medical School and IISPV, University Rovira i Virgili, Reus, Spain
| | - Nathan Wiederhold
- Fungus Testing Laboratory, University of Texas Health Science Center, San Antonio, TX, USA
| | - Josep Guarro
- Mycology Unit, Medical School and IISPV, University Rovira i Virgili, Reus, Spain
| | - Alberto M Stchigel
- Mycology Unit, Medical School and IISPV, University Rovira i Virgili, Reus, Spain
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Lieberman JA, Fiorito J, Ichikawa D, Fang FC, Rakita RM, Bourassa L. Long-Term Carriage of Medicopsis romeroi, an Agent of Black-Grain Mycetoma, Presenting as Phaeohyphomycosis in a Renal Transplant Patient. Mycopathologia 2019; 184:671-676. [PMID: 31502092 DOI: 10.1007/s11046-019-00379-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 08/26/2019] [Indexed: 10/26/2022]
Abstract
Medicopsis species are rare fungal pathogens that frequently resist common antifungal therapies and are difficult to identify morphologically as conidia are produced in pycnidia, a key feature of coelomycetes. Immunocompromised patients are at risk of these infections, even after remote exposure, and typically present with phaeohyphomycoses without dissemination. We present the case of a renal transplant recipient 6.5 years post-transplant who developed a slowly progressive soft tissue infection mimicking a synovial cyst. A cultured isolate was identified as Medicopsis romeroi by sequencing of multiple ribosomal loci. The patient responded well to debridement and posaconazole therapy. Solid-organ transplant patients are at risk of opportunistic fungal infection long after transplant, and molecular methods are often required for definitive identification.
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Affiliation(s)
- Joshua A Lieberman
- Division of Clinical Microbiology, Department of Laboratory Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA.,Department of Pathology, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Joseph Fiorito
- Department of Podiatry, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Doug Ichikawa
- Department of Podiatry, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Ferric C Fang
- Division of Clinical Microbiology, Department of Laboratory Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA.,Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Robert M Rakita
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Lori Bourassa
- Division of Clinical Microbiology, Department of Laboratory Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Seattle, WA, 98195, USA.
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