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Bescrovaine JDO, Warth JFG, de Souza C, Benoni VW, Baja F, Schneider GX, Vicente VA, de Hoog GS, Queiroz-Telles F. Nannizzia species causing dermatophytosis in cats and dogs: First report of Nannizzia incurvata as an etiological agent in Brazil. Med Mycol 2023; 61:myad105. [PMID: 37804177 DOI: 10.1093/mmy/myad105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/09/2023] Open
Abstract
Dermatophytosis is a superficial cutaneous infection, most commonly caused by fungal species such as Microsporum canis, Nannizzia gypsea (Microsporum gypseum), and Trichophyton mentagrophytes in dogs and cats. The zoonotic potential of these species is concerning, as companion animals are increasingly close to their owners. Therefore, the objectives of the study were to evaluate the current prevalence of Nannizzia-causing canine and feline dermatophytosis in Curitiba and Metropolitan Region, as well as perform phenotypic and phylogenetic characterizations of these isolates. Thus, 241 skin and fur samples from 163 dogs and 78 cats were analyzed from 2020 to 2021. The samples were obtained from animals of three sources: Veterinary Hospital of the Federal University of Paraná, animal shelters, and private clinics. The diagnosis was performed through phenotypic characterization and sequencing ITS rDNA region. Among 97 positive samples for dermatophytes, Nannizzia was identified in 14 (14.4%) samples, while other dermatophyte genera were found in the remaining 83 (85.6%) samples. Among the canine samples, nine (90%) were N. gypsea, and one (10%) was N. incurvata. Whereas in feline samples, three (75%) were N. gypsea, and one (25%) was N. incurvata. It was concluded that among 97 animals infected with dermatophytes, dogs (24.4%; 10/41) were significantly more affected by Nannizzia than cats (7.1%; 4/56) (P < .05). According to molecular analyses, the ITS rDNA region provided satisfactory results for species-level identification of Nannizzia, confirming the first report of N. incurvata as an etiological agent of canine and feline dermatophytosis in Brazil.
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Affiliation(s)
- Jéssica de Oliveira Bescrovaine
- Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba, Brazil
- Laboratory of Immuno-Microbiological Diagnosis of the Veterinary Hospital, Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - José Francisco Ghignatti Warth
- Laboratory of Immuno-Microbiological Diagnosis of the Veterinary Hospital, Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - Cybelle de Souza
- Laboratory of Immuno-Microbiological Diagnosis of the Veterinary Hospital, Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | | | - Franciele Baja
- Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba, Brazil
| | - Gabriela Xavier Schneider
- Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba, Brazil
| | - Vania Aparecida Vicente
- Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba, Brazil
| | - Gerrits Sybren de Hoog
- Centre of Expertise in Mycology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Flavio Queiroz-Telles
- Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba, Brazil
- Department of Public Health, Federal University of Paraná, Curitiba, Brazil
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Zhang F, Feng Y, Wang S, Li D, Shi D. Case Report and Literature Review of Impetigo-Like Tinea Faciei. Infect Drug Resist 2022; 15:2513-2521. [PMID: 35586559 PMCID: PMC9109911 DOI: 10.2147/idr.s359500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/29/2022] [Indexed: 11/25/2022] Open
Abstract
Impetigo, commonly caused by bacteria, is characterized by lesions of pustules, bullae or golden yellow crusts; it is seldom caused by fungi. Here, we report one case of a 17-year-old female patient with a 1-month history of erythematous pustules on her left cheek. She was clinically diagnosed with “impetigo”, but did not respond to 1 week of treatment with topical mupirocin cream (antibacterial agent). We then saw that a fungal colony grew on the culture, which was identified as T. mentagrophytes based on the morphological and molecular characteristics. The patient was then diagnosed with tinea faciei and was topically treated with 0.2% ketoconazole cream twice per day for 7 days. Through a literature review, we found another 18 cases of impetigo-like tinea faciei with similar clinical manifestations and pathogenic characteristics. Among these, the most common causative agent was T. mentagrophytes complex, which frequently occurs in children and adolescents and exhibits no gender preferences. Systemic and topical antifungals such as terbinafine or itraconazole are effective for impetigo-like tinea faciei caused by T. mentagrophytes complex. However, prolonged course of impetigo in more than 50% cases highlights the importance of mycological examination when dealing with apparent antibiotic-resistant impetigo cases in clinical settings.
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Affiliation(s)
- Fangfang Zhang
- College of Clinical Medicine, Jining Medical University, Jining, 272000, People’s Republic of China
- Department of Dermatology, Jining Dermatosis Prevention and Treatment Hospital, Jining, 272000, People’s Republic of China
| | - Yahui Feng
- College of Clinical Medicine, Jining Medical University, Jining, 272000, People’s Republic of China
| | - Sisi Wang
- Laboratory of Medical Mycology, Jining No. 1 People’s Hospital, Jining, 272000, People’s Republic of China
| | - Dongmei Li
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Dongmei Shi
- Laboratory of Medical Mycology, Jining No. 1 People’s Hospital, Jining, 272000, People’s Republic of China
- Department of Dermatology, Jining No. 1 People’s Hospital, Jining, 272000, People’s Republic of China
- Correspondence: Dongmei Shi, Laboratory of Medical Mycology, Jining No. 1 People’s Hospital, Jining, 272000, People’s Republic of China, Tel +86 537-6051008, Email
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Toyosawa Y, Kimura U, Kurihara M, Noguchi H, Matsumoto T, Hiruma M, Nakazawa T, Takamori K, Suga Y. Kerion Celsi Caused by <i>Nannizzia gypsea</i> in a Two-Year-Old Child Who Had Been Hospitalized Since Birth. Med Mycol J 2022; 63:21-23. [DOI: 10.3314/mmj.21-00021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yui Toyosawa
- Department of Dermatology, Juntendo University Urayasu Hospital
| | - Utako Kimura
- Department of Dermatology, Juntendo University Urayasu Hospital
| | - Mana Kurihara
- Department of Dermatology, Juntendo University Urayasu Hospital
| | | | | | | | - Takeshi Nakazawa
- Department of Infection Control Teams, Juntendo University Urayasu Hospital
| | - Kenji Takamori
- Department of Dermatology, Juntendo University Urayasu Hospital
| | - Yasushi Suga
- Department of Dermatology, Juntendo University Urayasu Hospital
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Souza BDS, Sartori DS, Andrade CD, Weisheimer E, Kiszewski AE. Dermatophytosis caused by Microsporum gypseum in infants: report of four cases and review of the literature. An Bras Dermatol 2017; 91:823-825. [PMID: 28099610 PMCID: PMC5193199 DOI: 10.1590/abd1806-4841.20165044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 11/24/2015] [Indexed: 11/29/2022] Open
Abstract
Dermatophytosis caused by Microsporum gypseum is rare,
especially in infants, with few published cases. Diagnosis in this age group is
frequently delayed. We review the literature and report 4 new cases of tinea of
glabrous skin caused by M. gypseum mimicking eczema in infants. Considering new
and previously reported cases, half of patients were exposed to sand,
emphasizing the importance of this transmission vehicle in this age group. In
conclusion, although rare, dermatophytosis by M. gypseum should be part of the
differential diagnosis of inflammatory dermatosis in infants. A clinical
suspicion and the availability of culture are keys to the diagnosis.
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Affiliation(s)
- Beatriz da Silva Souza
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) - Porto Alegre (RS), Brazil
| | | | | | | | - Ana Elisa Kiszewski
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) - Porto Alegre (RS), Brazil
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Abstract
A 7-day-old premature female infant presented with rapidly progressive, erythematous, annular skin lesions from the 5th day of life. She was diagnosed provisionally as a case of neonatal lupus erythematosus and was investigated accordingly. Histopathological examination of the skin biopsy specimen revealed presence of hyphae of dermatophytes in the stratum corneum, and the diagnosis was changed to tinea corporis. Differential diagnosis of the annular erythema of infancy has been discussed and the importance of scraping a scaly lesion for KOH preparation in the diagnostic work-up of such a patient has been highlighted.
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Affiliation(s)
- Aparna Palit
- Department of Dermatology, Venereology and Leprosy, Sri B.M. Patil Medical College, Hospital and Research Center, BLDE University, Bijapur, Karnataka, India
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Abstract
We report a 25-day-old boy who was referred to our dermatology unit for evaluation of extensive annular erythematous lesions on his body. We initially considered the differential diagnoses of candidiasis and neonatal lupus erythematosus but investigations revealed the case as tinea corporis due to a relatively uncommon causative agent, Microsporum gypseum. To the best of our knowledge it is the first case of extensive neonatal dermatophytoses caused by this organism. The possible causes and the role of steroids in producing the clinical picture in our patient are discussed.
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Affiliation(s)
- Amol Metkar
- Department of Dermatology, Rajiv Gandhi Medical College and Chhatrapati Shivaji Maharaj Hospital, Thane Municipal Corporation, Thane, Maharashtra, India.
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Tinea faciei : méconnue car son aspect clinique est trompeur. Presse Med 2009; 38:1230-4. [DOI: 10.1016/j.lpm.2008.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2008] [Revised: 09/21/2008] [Accepted: 10/06/2008] [Indexed: 11/17/2022] Open
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Romano C, Massai L, Gallo A, Fimiani M. Microsporum gypseuminfection in the Siena area in 2005-2006. Mycoses 2009; 52:67-71. [DOI: 10.1111/j.1439-0507.2008.01543.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nenoff P, Mügge C, Herrmann J, Keller U. Tinea faciei incognito due to Trichophyton rubrum as a result of autoinoculation from onychomycosis. Mycoses 2007; 50 Suppl 2:20-5. [PMID: 17681050 DOI: 10.1111/j.1439-0507.2007.01426.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The localisation of a dermatophytosis on the face is rare. Differential diagnoses include a broad range of dermatological disorders, e. g. contact dermatitis, psoriasis vulgaris, seborrhoeic dermatitis, demodicosis, and polymorphic photo eruptions. Two patients suffering from tinea faciei incognito caused by Trichophyton rubrum are presented. Diagnosis was based on mycological diagnostics of skin scrapings using Calcofluor preparation and cultivation of the causative dermatophyte. Both patients were suffering from tinea pedis and tinea unguium caused by the same dermatophyte species. An infection caused by Trichophyton rubrum of the face always occurs following autoinoculation from a pre-existing tinea pedis and tinea unguium of feet and toenails, sometimes of the fingernails.
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Affiliation(s)
- Pietro Nenoff
- Laboratorium für medizinische Mikrobiologie, Mölbis, Germany.
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