175 results match your criteria Malassezia Pityrosporum Folliculitis


Clinical differences in pediatric and adult Malassezia folliculitis: Retrospective analysis of 321 cases over 9 years.

J Am Acad Dermatol 2019 Mar 15. Epub 2019 Mar 15.

Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan. Electronic address:

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http://dx.doi.org/10.1016/j.jaad.2019.03.014DOI Listing

[Clinical problems in medical mycology: problem number 53].

Rev Iberoam Micol 2019 Mar 9. Epub 2019 Mar 9.

Unidad de Micología, Hospital de Infecciosas Francisco Javier Muñiz, Buenos Aires, Argentina.

A 21 year-old man, HIV infected, and with poor adherence to antiretroviral treatment, consulted us due to a papular rash on trunk and extremities, showing simultaneously hypochromic stains on his back. He was afebrile and hemodynamically stable. In the mycological study of the clinical samples taken from different lesions, yeasts compatible with Malassezia were observed. Read More

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http://dx.doi.org/10.1016/j.riam.2019.02.001DOI Listing
March 2019
1 Read

Treatment of Selected Canine Dermatological Conditions in Portugal - A Research Survey.

J Vet Res 2018 Dec 31;62(4):563-570. Epub 2018 Dec 31.

Department of Veterinary Sciences, Escola de Ciências Agrárias e Veterinárias, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.

Introduction: and often cause skin diseases in dogs.

Material And Methods: An online survey was e-mailed to veterinary practices nationwide covering demographics, diagnosis methods, and oral and topical treatment options. Of the 740 surveys sent, 100 complete replies were obtained. Read More

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http://dx.doi.org/10.2478/jvetres-2018-0058DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6364160PMC
December 2018
2 Reads

Dermoscopy of pityrosporum folliculitis.

J Am Acad Dermatol 2019 02 20;80(2):e43-e44. Epub 2018 Sep 20.

Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India.

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https://linkinghub.elsevier.com/retrieve/pii/S01909622183259
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http://dx.doi.org/10.1016/j.jaad.2018.08.057DOI Listing
February 2019
24 Reads
4.450 Impact Factor

Malassezia: a case of coexisting pityriasis versicolor and Malassezia folliculitis.

Singapore Med J 2018 Jun 21. Epub 2018 Jun 21.

Department of General Medicine, Sengkang General Hospital, Singapore.

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http://www.smj.org.sg/sites/default/files/LE-2016-381-epub.p
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http://dx.doi.org/10.11622/smedj.2018079DOI Listing
June 2018
11 Reads

The Prevalence of Folliculitis in Patients with Papulopustular/Comedonal Acne, and Their Response to Antifungal Treatment.

Skinmed 2018 1;16(2):99-104. Epub 2018 Apr 1.

Department of Dermatology, Baskent University Faculty of Medicine, Ankara, Turkey.

Because folliculitis (MF) may clinically mimic acne vulgaris (AV), patients usually receive unnecessary and prolonged antibiotic treatment. We aimed to determine the prevalence of MF among patients with AV, and to evaluate its response to antifungal treatment. A total of 217 patients with AV underwent cytologic examination for the presence of yeasts. Read More

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April 2018
27 Reads

In vivo characterization of pustules in Malassezia Folliculitis by reflectance confocal microscopy and optical coherence tomography. A case series study.

Skin Res Technol 2018 Nov 27;24(4):535-541. Epub 2018 Feb 27.

Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.

Background And Objective: Malassezia Folliculitis (MaF) is an inflammatory condition of hair follicles caused by Malassezia yeast. Optical coherence tomography (OCT) and reflectance confocal microscopy (RCM) are imaging technologies enabling in vivo visualization of superficial skin layers. This study explores morphology of pustules in MaF imaged by OCT and RCM. Read More

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http://dx.doi.org/10.1111/srt.12463DOI Listing
November 2018
19 Reads

Atypical clinical presentations of Malassezia folliculitis: a retrospective analysis of 94 biopsy-proven cases.

Int J Dermatol 2018 03 4;57(3):e19-e20. Epub 2018 Jan 4.

Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan.

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http://dx.doi.org/10.1111/ijd.13880DOI Listing
March 2018
18 Reads

Pityrosporum folliculitis: A retrospective review of 110 cases.

J Am Acad Dermatol 2018 03 11;78(3):511-514. Epub 2017 Nov 11.

Department of Dermatology, University of Massachusetts Medical School, Worcester, Massachusetts.

Background: Pityrosporum folliculitis is an under-recognized eruption of the face and upper portion of the trunk that may be confused with, or occur simultaneously with, acne vulgaris.

Objective: We sought to characterize risk factors for Pityrosporum folliculitis, its clinical presentation, and its response to treatment.

Methods: A retrospective chart review was performed on all patients age 0 to 21 years seen at our facility from 2010 to 2015 with Pityrosporum folliculitis confirmed by a potassium hydroxide preparation. Read More

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http://dx.doi.org/10.1016/j.jaad.2017.11.022DOI Listing
March 2018
36 Reads

Utility of Gram staining for diagnosis of Malassezia folliculitis.

J Dermatol 2018 Feb 13;45(2):228-231. Epub 2017 Nov 13.

Department of Dermatology, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan.

Malassezia folliculitis (MalF) mimics acne vulgaris and bacterial folliculitis in clinical presentations. The role of Gram staining in rapid diagnosis of MalF has not been well studied. In our study, 32 patients were included to investigate the utility of Gram staining for MalF diagnosis. Read More

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http://doi.wiley.com/10.1111/1346-8138.14120
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http://dx.doi.org/10.1111/1346-8138.14120DOI Listing
February 2018
11 Reads
2.350 Impact Factor

An unresponsive progressive pustular and crusting dermatitis with acantholysis in nine cats.

Vet Dermatol 2018 Feb 6;29(1):81-e33. Epub 2017 Oct 6.

Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California, One Shields Avenue, Davis, CA, 95616, USA.

Background: Between 2000 and 2012, nine cats were examined with a visually distinctive, progressive crusting dermatitis that was poorly responsive to all attempted therapies.

Objectives: Documentation of clinical and histopathological findings of this disease.

Animals: Nine privately owned cats. Read More

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http://dx.doi.org/10.1111/vde.12501DOI Listing
February 2018
37 Reads

Overexpression of NLRP3, NLRC4 and AIM2 inflammasomes and their priming-associated molecules (TLR2, TLR4, Dectin-1, Dectin-2 and NFκB) in Malassezia folliculitis.

Mycoses 2018 Feb 13;61(2):111-118. Epub 2017 Oct 13.

Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.

The activation of NLRP3, NLRC4 and AIM2 inflammasomes is pivotal for innate immunity against some pathogenic fungi, but their role in the pathogenesis of Malassezia folliculitis (MF) remains unclear. The objective of the study was to determine the expression of 4 canonical inflammasomes (NLRP1, NLRP3, NLRC4 and AIM2) and their priming-associated molecules (TLR2, TLR4, Dectin-1, Dectin-2 and NFκB) in MF lesion. Expression of NLRP1, NLRP3, NLRC4, AIM2, caspase-1, IL-1β, TLR2, TLR4, Dectin-1, Dectin-2 and NFκB was detected by immunohistochemistry in skin lesion of 23 MF patients and normal skin of 12 healthy subjects. Read More

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http://doi.wiley.com/10.1111/myc.12711
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http://dx.doi.org/10.1111/myc.12711DOI Listing
February 2018
59 Reads

Lipid Metabolic Versatility in spp. Yeasts Studied through Metabolic Modeling.

Front Microbiol 2017 14;8:1772. Epub 2017 Sep 14.

Department of Biological Sciences, Universidad de los AndesBogotá, Colombia.

species are lipophilic and lipid-dependent yeasts belonging to the human and animal microbiota. Typically, they are isolated from regions rich in sebaceous glands. They have been associated with dermatological diseases such as seborrheic dermatitis, pityriasis versicolor, atopic dermatitis, and folliculitis. Read More

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http://dx.doi.org/10.3389/fmicb.2017.01772DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5603697PMC
September 2017
27 Reads

Real-Time PCR Identification of Six Malassezia Species.

Curr Microbiol 2017 Jun 22;74(6):671-677. Epub 2017 Mar 22.

Fungal and Parasitic Molecular Biology Laboratory, Faculty of Medicine, University of Sfax, Rue Magida Boulila, Sfax, 3029, Tunisia.

Lipophilic yeast Malassezia species is widely found on the skin surface of humans and other animals. This fungus can cause pityriasis versicolor, Malassezia folliculitis, and seborrheic dermatitis. Still now, there is a problem with species identification of Malassezia with conventional methods. Read More

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http://dx.doi.org/10.1007/s00284-017-1237-7DOI Listing
June 2017
11 Reads

Molecular Identification of Malassezia Species in Patients with Malassezia folliculitis in Sfax, Tunisia.

Mycopathologia 2017 Jun 20;182(5-6):583-589. Epub 2017 Jan 20.

Laboratory of Molecular Biology of Parasite and Fungy, Medical Institute, Sfax University, Sfax, Tunisia.

Aim: Malassezia folliculitis is caused by the invasion of hair follicles by large numbers of Malassezia cells. Several Malassezia researches still use cultures, morphology and biochemical techniques. The aim of this study was to identify Malassezia species isolated from patients diagnosed with folliculitis, at the Parasitology and Mycology Laboratory of Sfax University Hospital, and to explore the genetic diversity of Malassezia by using PCR-RFLP and PCR-sequencing targeting the rDNA region of the Malassezia genome. Read More

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http://dx.doi.org/10.1007/s11046-017-0113-0DOI Listing
June 2017
3 Reads

Treatment Outcomes for Malassezia Folliculitis in theDermatology Department of a University Hospital in Japan.

Med Mycol J 2016 ;57(3):E63-6

Department of Dermatology, Teikyo University Hospital.

Topical or systemic antifungal therapy was administered to patients diagnosed with Malassezia folliculitis during the 5-year period between March 2007 and October 2013. The diagnosis of Malassezia folliculitis was established on the basis of characteristic clinical features and direct microscopic findings (10 or more yeast-like fungi per follicle). Treatment consisted of topical application of 2% ketoconazole cream or 100 mg oral itraconazole based on symptom severity and patients' preferences. Read More

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http://dx.doi.org/10.3314/mmj.16-00003DOI Listing
June 2017
13 Reads

Oral Antifungal Drugs in the Treatment of Dermatomycosis.

Authors:
Yuichiro Tsunemi

Med Mycol J 2016 ;57(2):J71-5

Department of Dermatology, Tokyo Women's Medical University.

Oral antifungal drugs are used primarily to treat tinea unguium; however, they are also useful for other types of tinea. For example, a combination of topical and oral antifungal drugs is effective in hyperkeratotic tinea pedis that is unresponsive to topical monotherapy. In cases of tinea facialis adjacent to the eyes, ears, or mouth, or widespread tinea corporis, or tinea cruris involving the complex skin folds of the external genitalia, it is difficult to apply topical drugs to all the lesions; therefore, oral antifungal drugs are necessary. Read More

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http://dx.doi.org/10.3314/mmj.57.J71DOI Listing
June 2017
23 Reads

When Acne is Not Acne.

Dermatol Clin 2016 Apr;34(2):225-8

Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 East 98 Street, 5th Floor, New York, NY 10029, USA.

Acne vulgaris (AV) is considered a straightforward diagnosis made clinically without specific diagnostic testing. However, certain disorders may simulate AV, such as multiple small epidermal cysts or deep milia, multiple osteoma cutis, multiple small adnexal neoplasms, and follicular and/or infections characterized by multiple small papules and/or pustules such as gram-positive folliculitis, gram-negative folliculitis, Malassezia folliculitis, keratosis pilaris, and flat warts. This can lead to an erroneous diagnosis and improper management. Read More

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http://dx.doi.org/10.1016/j.det.2015.12.002DOI Listing
April 2016
21 Reads

Fungal folliculitis masquerading as acute exanthematous pustulosis.

Cleve Clin J Med 2016 Mar;83(3):179-80

Head, Section of Industrial Dermatology, Department of Dermatology, Cleveland Clinic, Cleveland, OH, USA.

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http://dx.doi.org/10.3949/ccjm.83a.15028DOI Listing
March 2016
3 Reads

Progress in Malassezia Research in Korea.

Ann Dermatol 2015 Dec 7;27(6):647-57. Epub 2015 Dec 7.

Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea.

Yeasts of the genus Malassezia are part of the normal flora of human skin. However, they are also associated with various skin diseases. Since the introduction of Malassezia to the Korean Dermatologic Society two decades ago, remarkable progress has been made in our knowledge of this genus. Read More

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http://dx.doi.org/10.5021/ad.2015.27.6.647DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4695415PMC
December 2015
5 Reads

Malassezia species in healthy skin and in dermatological conditions.

Int J Dermatol 2016 May 29;55(5):494-504. Epub 2015 Dec 29.

Institute of Pathology, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.

The genus Malassezia comprises lipophilic species, the natural habitat of which is the skin of humans and other warm-blooded animals. However, these species have been associated with a diversity of dermatological disorders and even systemic infections. Pityriasis versicolor is the only cutaneous disease etiologically connected to Malassezia yeasts. Read More

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http://dx.doi.org/10.1111/ijd.13116DOI Listing
May 2016
15 Reads

[2011 Epidemiological Survey of Dermatomycoses in Japan].

Authors:
Yoshihiro Sei

Med Mycol J 2015 ;56(4):J129-35

Epidemiological Investigation Committee for Human Mycoses in the Japanese Society for Medical Mycology, Chairman and Reporter.

An epidemiological survey of dermatomycoses and their causative fungus flora in Japan for 2011 was conducted in accordance with methods and criteria of the past four surveys. The survey covered a total number of 36,052 outpatients who visited 12 dermatological clinics throughout Japan. The results were as follows. Read More

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http://dx.doi.org/10.3314/mmj.56.J129DOI Listing
December 2016
13 Reads

Clinical and Laboratory Features of Six Cases of Candida and Dermatophyte Folliculitis and a Review of Published Studies.

Mycopathologia 2016 Feb 4;181(1-2):97-105. Epub 2015 Sep 4.

Department of Medical Microbiology, Radboud UMC, Nijmegen, The Netherlands.

Although some studies have investigated the epidemiological characteristics of Malassezia folliculitis (MF), little is known about the clinical features and laboratory characteristics of folliculitis caused by other fungi. In this prospective study, 158 patients with folliculitis were identified, and cytological and mycological examinations were performed. The positive fungal cultures were confirmed using conventional methods, ITS sequencing and HWP1 analysis. Read More

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http://dx.doi.org/10.1007/s11046-015-9939-5DOI Listing
February 2016
11 Reads

[Cutaneous Malassezia infections and Malassezia associated dermatoses: An update].

Hautarzt 2015 Jun;66(6):465-84; quiz 485-6

Labor für medizinische Mikrobiologie, Partnerschaft Prof. Dr. med. Pietro Nenoff & Dr. med. Constanze Krüger, Straße des Friedens 8, 04579, Mölbis, Deutschland,

The lipophilic yeast fungus Malassezia (M.) spp. is the only fungal genus or species which is part of the physiological human microbiome. Read More

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http://dx.doi.org/10.1007/s00105-015-3631-zDOI Listing
June 2015
1 Read

Malassezia species and their associated skin diseases.

J Dermatol 2015 Mar;42(3):250-7

Department of Dermatology, Tokyo Medical University, Tokyo, Japan.

Malassezia spp. are lipophilic fungi that occur on all skin surfaces of humans and animals as commensal and pathogenic organisms. In the 2000s, several new species were added to the Malassezia genus by Japanese researchers. Read More

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http://doi.wiley.com/10.1111/1346-8138.12700
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http://dx.doi.org/10.1111/1346-8138.12700DOI Listing
March 2015
4 Reads

Comparison between Malassezia Folliculitis and Non-Malassezia Folliculitis.

Ann Dermatol 2014 Oct 26;26(5):598-602. Epub 2014 Sep 26.

Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.

Background: Among the various types of folliculitis, differentiation of Malassezia folliculitis (MF) from other forms of folliculitis is important because it is usually treated with antifungal agents.

Objective: We attempted to find a method to enhance the detection rate of MF, and examined the differences in the clinical manifestation between MF and non-MF (NMF).

Methods: We performed a retrospective study involving patients with folliculitis who were previously diagnosed with MF or NMF on the basis of serial tissue sectioning and diastase-Periodic acid-Schiff (d-PAS) staining findings. Read More

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http://dx.doi.org/10.5021/ad.2014.26.5.598DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4198587PMC
October 2014
4 Reads

Malassezia yeasts activate the NLRP3 inflammasome in antigen-presenting cells via Syk-kinase signalling.

Exp Dermatol 2014 Dec;23(12):884-9

Department of Dermatology, University Hospital, Zürich, Switzerland.

Although being a normal part of the skin flora, yeasts of the genus Malassezia are associated with several common dermatologic conditions including pityriasis versicolour, seborrhoeic dermatitis (SD), folliculitis, atopic eczema/dermatitis (AE/AD) and dandruff. While Malassezia spp. are aetiological agents of pityriasis versicolour, a causal role of Malassezia spp. Read More

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http://dx.doi.org/10.1111/exd.12552DOI Listing
December 2014
9 Reads

Skin Colonization by Malassezia spp. in hospitalized neonates and infants in a tertiary care centre in North India.

Mycopathologia 2014 Oct 19;178(3-4):267-72. Epub 2014 Jul 19.

Mycology Division, Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India.

Malassezia, a skin colonizer, is associated with multiple skin disorders in adults, and cephalic pustulosis and folliculitis in children. It can cause fungemia in infants and neonates. The time and pattern of colonization, risk factors associated with colonization and causing fungemia in children, are not well understood. Read More

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http://dx.doi.org/10.1007/s11046-014-9788-7DOI Listing
October 2014
20 Reads

Malassezia (pityrosporum) folliculitis.

J Clin Aesthet Dermatol 2014 Mar;7(3):37-41

Lake Erie College of Osteopathic Medicine, Bradenton, Florida.

Malassezia (Pityrosporum) folliculitis is a fungal acneiform condition commonly misdiagnosed as acne vulgaris. Although often associated with common acne, this condition may persist for years without complete resolution with typical acne medications. Malassezia folliculitis results from overgrowth of yeast present in the normal cutaneous flora. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3970831PMC
March 2014
4 Reads

An outbreak of Candida albicans folliculitis masquerading as Malassezia folliculitis in a prison population.

J Correct Health Care 2014 Apr;20(2):154-62

1University of Texas Medical Branch, Galveston, TX, USA.

Several inmates from a non-air-conditioned prison were sent to the University of Texas Medical Branch dermatology clinic for unexplained eruptions not responding to various treatments. They were initially diagnosed with Malassezia folliculitis based on clinical examination and histological findings. The patients' cultures from skin scrapings, however, revealed Candida albicans confirmed by growth on Mycosel agar and further by the germ tube production method. Read More

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http://dx.doi.org/10.1177/1078345813518636DOI Listing
April 2014
4 Reads

Chemical organization of the cell wall polysaccharide core of Malassezia restricta.

J Biol Chem 2014 May 13;289(18):12647-56. Epub 2014 Mar 13.

From the Unité des Aspergillus, Institut Pasteur, 25 rue du Docteur Roux, 75724 Paris cedex, France.

Malassezia species are ubiquitous residents of human skin and are associated with several diseases such as seborrheic dermatitis, tinea versicolor, folliculitis, atopic dermatitis, and scalp conditions such as dandruff. Host-Malassezia interactions and mechanisms to evade local immune responses remain largely unknown. Malassezia restricta is one of the most predominant yeasts of the healthy human skin, its cell wall has been investigated in this paper. Read More

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http://www.jbc.org/lookup/doi/10.1074/jbc.M113.547034
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http://dx.doi.org/10.1074/jbc.M113.547034DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4007454PMC
May 2014
24 Reads

Malassezia infections: a medical conundrum.

J Am Acad Dermatol 2014 Jul 22;71(1):170-6. Epub 2014 Feb 22.

Department of Microbiology, Faculty of Medicine, University of Porto, Porto, Portugal.

Malassezia yeasts have long been considered commensal fungi, unable to elicit significant damage. However, they have been associated with a diversity of cutaneous diseases, namely pityriasis versicolor, Malassezia folliculitis, seborrheic dermatitis, atopic dermatitis, psoriasis, and confluent and reticulate papillomatosis. Several hypotheses have been proposed to explain the pathogenic mechanisms of these fungi, but none have been confirmed. Read More

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http://dx.doi.org/10.1016/j.jaad.2013.12.022DOI Listing
July 2014
2 Reads

Evidence-based Danish guidelines for the treatment of Malassezia-related skin diseases.

Acta Derm Venereol 2015 Jan;95(1):12-9

Department of Dermatology, Bispebjerg University Hospital, DK-2400 Copenhagen NV, Denmark.

Internationally approved guidelines for the diagnosis and management of Malassezia-related skin diseases are lacking. Therefore, a panel of experts consisting of dermatologists and a microbiologist under the auspices of the Danish Society of Dermatology undertook a data review and compiled guidelines for the diagnostic procedures and management of pityriasis versicolor, seborrhoeic dermatitis and Malassezia folliculitis. Main recommendations in most cases of pityriasis versicolor and seborrhoeic dermatitis include topical treatment which has been shown to be sufficient. Read More

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http://dx.doi.org/10.2340/00015555-1825DOI Listing
January 2015
6 Reads

Malassezia skin diseases in humans.

G Ital Dermatol Venereol 2013 Dec;148(6):609-19

Division of Dermatology Department of Surgery and Translational Medicine University of Florence, Florence, Italy -

Although Malassezia yeasts are a part of the normal microflora, under certain conditions they can cause superficial skin infection, such as pityriasis versicolor (PV) and Malassezia folliculitis. Moreover the yeasts of the genus Malassezia have been associated with seborrheic dermatitis and dandruff, atopic dermatitis, psoriasis, and, less commonly, with confluent and reticulated papillomatosis, onychomycosis, and transient acantholytic dermatosis. The study of the clinical role of Malassezia species has been surrounded by controversy due to the relative difficulty in isolation, cultivation, and identification. Read More

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December 2013
10 Reads

Malassezia folliculitis in an infant.

Med Mycol Case Rep 2013 Mar 1;2:72-4. Epub 2013 Mar 1.

Department of Dermatology, Charles Nicolle hospital, Tunis, Tunisia.

Malassezia folliculitis commonly affects the adolescents and the young adults. We describe an unusual case of Malassezia folliculitis which is particular in age of patient and scare evolution of lesions. The patient was a three-month-old immuno-competent boy. Read More

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http://dx.doi.org/10.1016/j.mmcr.2013.02.005DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3885948PMC
March 2013
4 Reads

Necrotizing Infundibular Crystalline Folliculitis: A Case Report of an Exceptional Lesion of Unknown Etiology.

Dermatopathology (Basel) 2014 Jan-Jul;1(1):3-6. Epub 2014 Jan 9.

Dermatopathology Unit, Department of Dermatology, University Hospital of Geneva, Geneva, Switzerland.

Necrotizing infundibular crystalline folliculitis is a rare follicular lesion of which the etiology is not well understood. Here we describe the case of a 71-year-old male patient presenting with multiple hyperkeratotic lesions localized on the forehead. Histopathological analysis of one of the lesions revealed a follicular invagination containing cellular debris and keratin lamellae containing filamentous mucinous material and numerous crystals birefringent in polarized light microscopy. Read More

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http://dx.doi.org/10.1159/000357157DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772923PMC
April 2016
8 Reads

Pityrosporum folliculitis in an immunocompetent patient: clinical case description.

Dermatol Online J 2013 Aug 15;19(8):19273. Epub 2013 Aug 15.

Federal University of Rio de Janeiro.

The present report concerns Malassezia-related pityrosporum folliculitis in a patient without any predisposing factor. Once the diagnosis had been confirmed by histopathologic exam, the patient was treated with oral ketoconazole and selenium sulfide shampoo; complete remission of the clinical condition was obtained. Thus it could be concluded that in spite of being routinely associated with immunosuppression, this condition may be present in an immunocompetent patient. Read More

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August 2013
4 Reads

Tinea atypica: report of nine cases.

Wien Med Wochenschr 2013 Dec 15;163(23-24):549-55. Epub 2013 Aug 15.

Dermatology and Venereology Department, Medical University, Plovdiv, Bulgaria,

Fungal infections of the skin are a common condition, usually easy to diagnose and treat. When the infection is clinically mimicking another cutaneous disorder or when the clinical presentation is modified by the use of inappropriate treatment, it is referred to as tinea atypica or tinea incognito.We report a series of nine cases of patients with tinea atypica, imitating and diagnosed initially as different skin diseases. Read More

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http://dx.doi.org/10.1007/s10354-013-0230-4DOI Listing
December 2013
13 Reads
1 Citation

Skin diseases associated with Malassezia yeasts: facts and controversies.

Clin Dermatol 2013 Jul-Aug;31(4):455-463

Department of Skin and Venereal Diseases, University of Ioannina Medical School, Ioannina, Greece.

The implication of the yeast genus Malassezia in skin diseases has been characterized by controversy, since the first description of the fungal nature of pityriasis versicolor in 1846 by Eichstedt. This is underscored by the existence of Malassezia yeasts as commensal but also by their implication in diseases with distinct absence of inflammation despite the heavy fungal load (pityriasis versicolor) or with characteristic inflammation (eg, seborrheic dermatitis, atopic dermatitis, folliculitis, or psoriasis). The description of 14 Malassezia species and subsequent worldwide epidemiologic studies did not reveal pathogenic species but rather disease-associated subtypes within species. Read More

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http://dx.doi.org/10.1016/j.clindermatol.2013.01.012DOI Listing
November 2013
3 Reads

Epidemiological characteristics of Malassezia folliculitis and use of the May-Grünwald-Giemsa stain to diagnose the infection.

Diagn Microbiol Infect Dis 2013 Aug 22;76(4):450-7. Epub 2013 May 22.

Department of Dermatology, Faculty of Medicine, Başkent University Adana Hospital, Adana, Turkey.

Various bacterial, fungal, parasitic, and viral pathogens can cause folliculitis, which is often mistakenly treated with antibiotics for months or even years. A laboratory diagnosis is required before therapy can be planned. Here, we describe the prevalence and risk factors, as well as the clinical, cytological, and mycological characteristics, of patients with Malassezia folliculitis (MF) in Adana, Turkey. Read More

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http://dx.doi.org/10.1016/j.diagmicrobio.2013.04.011DOI Listing
August 2013
6 Reads

[Recent advances in research on Malassezia microbiota in humans].

Med Mycol J 2013 ;54(1):39-44

Department of Microbiology, Meiji Pharmaceutical University.

Malassezia species of lipophilic yeasts account for most fungal microbiota. Although they colonize healthy skin, they are also associated with several skin diseases, including pityriasis versicolor, seborrheic dermatitis, Malassezia folliculitis, and atopic dermatitis. To date, 14 members of the Malassezia genus have been identified. Read More

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April 2014
4 Reads

[2006 Epidemiological survey of dermatomycoses in Japan].

Authors:
Yoshihiro Sei

Med Mycol J 2012 ;53(3):185-92

Epidemiological Investigation Committee for Human Mycoses in the Japanese Society for Medical Mycology, Japan.

An epidemiological survey of dermatomycoses and the causative fungus flora of dermatomycoses in Japan for 2006 was made on a total number of 63,029 outpatients who visited 16 dermatological clinics throughout Japan. The results were as follows. 1) Dermatophytosis was the most prevalent cutaneus fungal infection (7,582 cases) seen in these clinics, followed by candidiasis (842 cases) and then Malassezia infections (283 cases). Read More

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December 2013
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Exuberant clinical presentation of probable Malassezia folliculitis in a young nonimmunosuppressed patient.

An Bras Dermatol 2012 May-Jun;87(3):459-62

Dermatology and Radiotherapy Department, Medical School of Botucatu, Paulista State University Julio de Mesquita Filho, SP, Brazil.

Malassezia folliculitis is an inflammatory disorder observed in both immunocompetent and immunosuppressed patients. The authors describe an unusual and exuberant presumed case affecting the face, trunk and upper limbs of a 12-year-old nonimmunosuppressed patient. Although the agent was not identified by culture, the clinical and histopathological aspects plus the response to specific treatment support the diagnosis of Malassezia folliculitis. Read More

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March 2013
13 Reads

[Malassezia infections].

Authors:
Yoshihiro Sei

Med Mycol J 2012 ;53(1):7-11

Teikyo University School of Medicine Mizonokuchi Hospital Professor, Head of department of Dermatology.

Although Malassezia yeasts are a part of the normal microflora, under certain conditions they can cause superficial skin infection Pityriasis versicolor, Malassezia folliculitis. Lipophilic yeasts are being considered as major opportunistic pathogens for a very long time. Most of the yeasts show an absolute requirement for long fatty acid chains and specific procedures are required for their isolation, conservation and identification. Read More

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March 2013
8 Reads

The Malassezia genus in skin and systemic diseases.

Clin Microbiol Rev 2012 Jan;25(1):106-41

Department of Skin and Venereal Diseases, University of Ioannina Medical School, Greece.

In the last 15 years, the genus Malassezia has been a topic of intense basic research on taxonomy, physiology, biochemistry, ecology, immunology, and metabolomics. Currently, the genus encompasses 14 species. The 1996 revision of the genus resulted in seven accepted taxa: M. Read More

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http://dx.doi.org/10.1128/CMR.00021-11DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3255962PMC
January 2012
1 Read

Malassezia globosa tends to grow actively in summer conditions more than other cutaneous Malassezia species.

J Dermatol 2012 Jul 10;39(7):613-6. Epub 2012 Jan 10.

Departments of Dermatology Applied Cell and Regenerative Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.

Malassezia globosa is a major pathogen of Malassezia folliculitis (MF) and the predominant species on human skin. The aim of this study was to clarify the differences between M. globosa and other cutaneous Malassezia species, M. Read More

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http://dx.doi.org/10.1111/j.1346-8138.2011.01477.xDOI Listing
July 2012
4 Reads

[A study of culture-based easy identification system for Malassezia].

Authors:
Takamasa Kaneko

Med Mycol J 2011 ;52(4):297-303

Department of Microbiology, Kanto Chemical Co., Inc.

Most species of this genus are lipid-dependent yeasts, which colonize the seborrheic part of the skin, and they have been reported to be associated with pityriasis versicolor, Malassezia folliculitis, seborrheic dermatitis, and atopic dermatitis. Malassezia have been re-classified into 7 species based on molecular biological analysis of nuclear ribosomal DNA/RNA and new Malassezia species were reported. As members of the genus Malassezia share similar morphological and biochemical characteristics, it was thought to be difficult to differentiate between them based on phenotypic features. Read More

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April 2012
2 Reads

[Malassezia folliculitis in an immunocompromised patient].

Hautarzt 2011 Oct;62(10):725-7

Hautklinik, Universitätsklinikum Düsseldorf.

Malassezia folliculitis (synonym: Pityrosporum folliculitis) is a polymorphic dermatomycosis characterized by the development of small papules and pustules. In severe cases, molluscoid comedonal papules are typical. The disease occurs mainly in sebum-rich areas of the face, back and chest, frequently affecting patients under immunosuppressive therapy. Read More

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http://dx.doi.org/10.1007/s00105-011-2238-2DOI Listing
October 2011
3 Reads

Folliculitis et perifolliculitis capitis abscedens et suffodiens controlled with a combination therapy: systemic antibiosis (metronidazole plus clindamycin), dermatosurgical approach, and high-dose isotretinoin.

Authors:
Georgi Tchernev

Indian J Dermatol 2011 May;56(3):318-20

Department of Dermatology and Venerology, Trakian University, Medical Faculty, Stara Zagora, Bulgaria.

Folliculitis et perifolliculitis capitis abscedens et suffodiens is a rare disease of unknown etiology. It is a suppurative process that involves the scalp, eventually resulting in extensive scarring and irreversible alopecia. The condition is also known as 'acne necrotica miliaris' or 'Proprionibacterium' folliculitis. Read More

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http://www.e-ijd.org/text.asp?2011/56/3/318/82492
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http://dx.doi.org/10.4103/0019-5154.82492DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132914PMC
May 2011
18 Reads
6 Citations

Epidemiologic Study of Malassezia Yeasts in Patients with Malassezia Folliculitis by 26S rDNA PCR-RFLP Analysis.

Ann Dermatol 2011 May 27;23(2):177-84. Epub 2011 May 27.

Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea.

Background: So far, studies on the inter-relationship between Malassezia and Malassezia folliculitis have been rather scarce.

Objective: We sought to analyze the differences in body sites, gender and age groups, and to determine whether there is a relationship between certain types of Malassezia species and Malassezia folliculitis.

Methods: Specimens were taken from the forehead, cheek and chest of 60 patients with Malassezia folliculitis and from the normal skin of 60 age- and gender-matched healthy controls by 26S rDNA PCR-RFLP. Read More

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http://dx.doi.org/10.5021/ad.2011.23.2.177DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130860PMC
May 2011
5 Reads