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Article Synopsis
  • Actinomycosis is a rare, chronic infection caused by specific anaerobic bacteria, which can complicate diagnosis, especially when it affects the central nervous system.
  • A case study highlights a 29-year-old farmer with a dura-based mass that resembled a brain tumor, confirmed as actinomycosis through histopathology after surgical intervention.
  • Early diagnosis is crucial, especially in at-risk individuals, to ensure effective treatment and better recovery outcomes.
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Histopathology in the Diagnosis of Tinea Capitis: When to Do, How to Interpret?

Mycopathologia

October 2023

Department of Dermatology, Faculty of Medicine, Adana Dr. Turgut Noyan Application and Research Center, Başkent University, Adana, Turkey.

The diagnosis of tinea capitis is usually made by clinical signs and direct microscopic examination. Early diagnosis of this dermatophytic infection, which may cause permanent hair loss if not treated appropriately, is very crucial. In recent years, the use of dermoscopy has helped with early diagnosis.

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Objectives: Although the foot remains the main localization of mycetomas, extrapodal attacks, which are rarely studied, are also possible and occur either initially or following an extension. The objectives were to describe the epidemiological, clinical and etiological features of extrapodal mycetomas in Senegal.

Methodology: Cross-sectional and retrospective study with multicentric enrollment in four reference department, two of which are in dermatology and two in orthopedics and traumatology.

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Pseudomycetoma of the scalp caused by Microsporum canis.

An Bras Dermatol

June 2020

Clinic of Dermatology, Faculdade de Ciências Médicas, Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil. Electronic address:

Pseudomycetoma is an extremely rare deep mycosis, caused by dermatophytic fungi that penetrate the tissue from infected follicles of tinea capitis. Both clinically and histopathology are similar to eumycetoma, being distinguished through the isolation of the fungus, which in the case of pseudomycetoma can be Microsporum spp. or Trichophyton spp.

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Classically, dermatophytes are identified by phenotypic methods even if these methods, sometimes, remain difficult or uncertain. On the other hand, nucleotide sequence analysis of internal transcribed spacers (ITS) of rDNA has proved to be a useful method for identification of dermatophytes. The objective of this study was to compare the phenotypic method with DNA sequencing of the ITS regions for identification of dermatophyte species isolated in Dakar, Senegal.

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