Subcutaneous Mycoses

Author(s):  
Vikram Mahajan
Keyword(s):  
1992 ◽  
Vol 31 (10) ◽  
pp. 725-729 ◽  
Author(s):  
LILIANA FRANCO ◽  
IVAN GOMEZ ◽  
ANGELA RESTREPO
Keyword(s):  

Author(s):  
Fengming Hu ◽  
Chong Wang ◽  
Peng Wang ◽  
Lei Zhang ◽  
Qing Jiang ◽  
...  

ObjectiveDirkmeia churashimaensis, belonging to Ustilaginales fungi, has never been reported as clinical pathogenic until very recently. In this study, we report an unusual subcutaneous infection with Dirkmeia churashimaensis and reviewed all human Ustilaginales infections. The aim is to better understand their epidemiology, infection type, risk factors, and the sensitivity to antifungal agents.MethodsAn 80-year-old female farmer developed extensive plaques and nodules on her left arm within 2 years. Pathological and microbiological examinations identified a new pathological agent, Dirkmeia churashimaensis, as the cause of this infection. The patient was successfully cured by oral itraconazole. We reviewed a total of 31 cases of Ustilaginales cases, among of which only three were skin infections.ResultsLocal barrier damage (i.e., surgery, trauma, and basic dermatosis) and systemic immunodeficiency (i.e., preterm and low birthweight, Crohn’s disease, malignant cancer, and chemotherapy) are risk factors for Ustilaginales infection. The D1/D2 and ITS regions are the frequently used loci for identifying the pathogens together with phenotype. Most patients could survive due to antifungal treatment, whereas seven patients died. Amphotericin B, posaconazole, itraconazole, and voriconazole showed good activity against these reported strains, whereas fluconazole, 5-flucytosine, and echinocandins usually showed low susceptibility. Itraconazole had good efficiency for subcutaneous infections.ConclusionsThe present case study and literature review reveal that Ustilaginales can be opportunistic pathogenic normally in immunocompromised and barrier damage people. A proper identification of fungi can be crucial for clinical treatment, and more data of antifungal are needed for choice of medication against this kind of infections.


Author(s):  
Sivayogana R. ◽  
Madhu R. ◽  
Ramesh A. ◽  
Dhanalakshmi U. R.

<p class="abstract"><strong>Background:</strong> Deep mycoses which<strong> </strong>includes subcutaneous mycoses and systemic mycoses, accounts for about 1% of the all the fungal infections seen in human beings. Though rare, these infections assume significance due to the increased morbidity and mortality associated with them. The objective of the study was to study the incidence, clinical presentation, aetiological agents and histopathological findings of deep mycoses in patients attending the mycology section, department of dermatology of a tertiary centre in Chennai.</p><p class="abstract"><strong>Methods:</strong> All Patients with clinical suspicion of deep mycoses who presented to mycology section during the period from November 2015 to September 2016 were screened. The samples from these patients were subjected to direct microscopy by potassium hydroxide wet mount, culture and histopathology.<strong></strong></p><p class="abstract"><strong>Results:</strong> Among the 8250 patients who attended mycology OPD, 41 patients (0.5%) had deep mycoses. The commonly affected age group was 41-50 yrs (29.7%). Males (73.2%) were predominantly affected. Of the 41 patients, 26.8% were immunocompromised. 37 patients (90.2%) had subcutaneous infection and 4 (9.8%) had opportunistic mycoses. Mycetoma (43.2%) was the most common subcutaneous mycoses. Mucormycosis (75%) and aspergillosis (25%) were the opportunistic mycoses observed. KOH positivity was 100%, while culture positivity was 65.7%. <em>Madurella mycetomatis,</em> <em>Phialophora verrucosa</em>, <em>Rhizopus arrhizus</em> and <em>Aspergillus fumigatus</em> were the common organisms isolated in this study.</p><p class="abstract"><strong>Conclusions:</strong> Mycetoma is the most common subcutaneous mycoses in this part of India. Eumycetoma is more common than actinomycetoma. Phaeohyphomycosis is on the rise. Simple KOH examination would pave way for an early diagnosis and prompt treatment of deep mycoses.</p>


2020 ◽  
Vol 7 (4) ◽  
pp. 141-152
Author(s):  
Andrés Tirado-Sánchez ◽  
Carlos Franco-Paredes ◽  
Alexandro Bonifaz
Keyword(s):  

Author(s):  
Conchita Toriello ◽  
Carolina Brunner-Mendoza ◽  
Estela Ruiz-Baca ◽  
Esperanza Duarte-Escalante ◽  
Amelia Pérez-Mejía ◽  
...  

Abstract Sporotrichosis is an endemic mycosis caused by the species of the Sporothrix genus, and it is considered one of the most frequent subcutaneous mycoses in Mexico. This mycosis has become a relevant fungal infection in the last two decades. Today, much is known of its epidemiology and distribution, and its taxonomy has undergone revisions. New clinical species have been identified and classified through molecular tools, and they now include Sporothrix schenckii sensu stricto, Sporothrix brasiliensis, Sporothrix globosa, and Sporothrix luriei. In this article, we present a systematic review of sporotrichosis in Mexico that analyzes its epidemiology, geographic distribution, and diagnosis. The results show that the most common clinical presentation of sporotrichosis in Mexico is the lymphocutaneous form, with a higher incidence in the 0–15 age range, mainly in males, and for which trauma with plants is the most frequent source of infection. In Mexico, the laboratory diagnosis of sporotrichosis is mainly carried out using conventional methods, but in recent years, several researchers have used molecular methods to identify the Sporothrix species. The treatment of choice depends mainly on the clinical form of the disease, the host’s immunological status, and the species of Sporothrix involved. Despite the significance of this mycosis in Mexico, public information about sporotrichosis is scarce, and it is not considered reportable according to Mexico’s epidemiological national system, the “Sistema Nacional de Vigilancia Epidemiológica.” Due to the lack of data in Mexico regarding the epidemiology of this disease, we present a systematic review of sporotrichosis in Mexico, between 1914 and 2019, that analyzes its epidemiology, geographic distribution, and diagnosis.


1994 ◽  
Vol 32 (s1) ◽  
pp. 299-307 ◽  
Author(s):  
H.S. Randhawa ◽  
U. Budimulja ◽  
G. Bazaz-Malik ◽  
K. Bramono ◽  
M. Hiruma ◽  
...  

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