Decryptification of acid phosphatase in arthrospores of Geotrichum species treated with dimethyl sulfoxide and acetone. (1/16)
Decryptification of acid phosphatase in Geotrichum sp. arthrospores was accomplished using acetone or dimethyl sulfoxide treatment. Both dimethyl sulfoxide and acetone irreversibly destroyed the integrity of the spore membranes without solubilizing acid phosphatase. (+info)Mycotic bovine nasal granuloma. (2/16)
A case of mycotic bovine nasal granuloma in a 10 year-old Jersey cow, produced by Drechslera halodes is presented. Histopathological sections showed abundant hyaline and pigmented extra and intracellular fungal structures together with a polymorphic cellular granuloma formed by neutrophils, lymphocytes, plasmocytes, histiocytes and giant cells of the Langhans type. It is the first case of mycotic bovine nasal granuloma recognized in Uruguay although this disease seems to be frequent according to the opinion of veterinarian specialists. Another similar clinical case also in a Jersey cow from the same dairy house with an intense cellular infiltrate rich in eosinophils without granulomatous image, together with extracellular hyaline and fuliginous fungal forms, is also referred for comparative purposes. Geotrichum sp. was isolated. The need of an early diagnosis and treatment of the disease is stressed. (+info)Invasive infections caused by Trichosporon species and Geotrichum capitatum in patients with hematological malignancies: a retrospective multicenter study from Italy and review of the literature. (3/16)
Trichosporonosis is an uncommon but frequently fatal mycosis in immunocompromised patients. A multicenter retrospective study was conducted to characterize cases of proven or probable invasive trichosporonosis diagnosed over the past 20 years in Italian patients with hematological diseases. Of the 52 cases identified, 17 were classified as Trichosporon sp. infections and 35 were attributed to Geotrichum capitatum. Acute myeloid leukemia accounted for 65.4% of the cases. The incidence rates of Trichosporon sp. and G. capitatum infections in acute leukemia patients were 0.4 and 0.5%, respectively. Overall, 76.9% of cases had positive blood cultures. Pulmonary involvement was documented in 26.9% of cases. Death was reported for 57.1% of G. capitatum infections and for 64.7% of Trichosporon sp. infections. A literature review on trichosporonosis in patients with any underlying disease or condition reveals G. capitatum as a predominantly European pathogen, particularly in certain Mediterranean areas, while Trichosporon sp. infections are seen with similar frequencies on all continents. The majority of published Trichosporon sp. and G. capitatum infections occurred in patients with hematological diseases (62.8 and 91.7%, respectively). Well over half of these were suffering from acute leukemia (68 and 84% of patients with Trichosporon sp. and G. capitatum infections, respectively). Crude mortality rates were 77% for Trichosporon spp. and 55.7% for G. capitatum. The optimal therapy for trichosporonosis has yet to be identified; however, in vitro experiences are providing encouraging evidence of the potential role of the new triazoles, in particular, voriconazole. (+info)Aspergillus galactomannan enzyme-linked immunosorbent assay cross-reactivity caused by invasive Geotrichum capitatum. (4/16)
We report three cases of invasive Geotrichum capitatum infection in patients with acute leukemia for which an enzyme-linked immunosorbent assay (ELISA) for Aspergillus galactomannan was positive, with no evidence of aspergillosis. Supernatants obtained from suspensions of 17 G. capitatum strains gave positive reactions with the Aspergillus galactomannan ELISA. These clinical and laboratory data seem to suggest that G. capitatum produces a soluble antigen that is cross-reactive with Aspergillus galactomannan. (+info)Combined therapies in a murine model of blastoschizomycosis. (5/16)
In a murine model of blastoschizomycosis, amphotericin B combined with micafungin, flucytosine or voriconazole did not improve the efficacy of fluconazole. However, such combinations can constitute therapeutic options for those cases where fluconazole fails. (+info)A case of oral geotrichosis caused by Geotrichum capitatum in an old patient. (6/16)
Geotrichosis is an uncommon fungal infection. Geotrichum capitatum is commonly acknowledged as an opportunistic fungal pathogen that causes systemic geotrichosis in immunocompromised patients, especially patients with acute leukemia and severe neutropenia. Here, we report a case of oral geotrichosis caused by G. capitatum in an old patient with no hematological malignancies. Fungal cells were detected in clinical specimens obtained with oral swabs using the KOH technique. Yeast colonies with peripheral hairs were exclusively isolated as fungi from the oral mucosa and feces of the patient. The isolates were identified as G. capitatum by morphological findings, sugar-assimilation tests, and the nucleotide sequences of the ITS regions of the rDNA. Effective treatment of the patient was achieved with amphotericin B syrup in accord with the results of in vitro susceptibility tests. G. capitatum should be recognized as a fungal pathogen involved in superficial infections of older persons, as should Candida spp., even in the absence of hematological malignancies. (+info)Case of fatal Blastoschizomyces capitatus infection occurring in a patient receiving empiric micafungin therapy. (7/16)
(+info)Oral geotrichosis: report of 12 cases. (8/16)
Oral geotrichosis is an uncommon opportunistic infection caused by Geotrichum candidum, a habitual contaminant and component of the flora of various parts of the body. This communication reports both a 20-year retrospective study of clinically and mycologically proven cases of oral geotrichosis, and a prospective study of fungal oral flora in 200 individuals divided into two groups: normal individuals and individuals with associated conditions. Twelve patients with proven oral geotrichosis were included: 9 females and 3 males, with a mean age of 48.5 years; the associated conditions were diabetes mellitus (66.6%), leukemia, Hodgkin's lymphoma and HIV/AIDS infection. The oral geotrichoses showed three clinical varieties: pseudomembranous (75%), hyperplastic, and palatine ulcer. G. candidum was isolated in 11 cases and G. capitatum in one. Positive fungal cultures were obtained from the two groups, and 48% and 78% of cultures were positive, respectively, for Candida spp. In 2.8% and 6.33% of the cases, G. candidum was isolated, respectively, together with one strain of G. capitatum. Oral geotrichosis is an exceptional infection that clinically presents, and is treated, as oral candidiasis. G. candidum may be isolated from the oral flora of a small proportion of patients, either normal individuals or those with associated conditions. (+info)Geotrichosis is a fungal infection caused by the organism Geotrichum capitatum or sometimes Geotrichum candidum. This condition often affects the respiratory system, causing lung infections, but can also cause skin and mucous membrane infections. It is more commonly seen in individuals with weakened immune systems, such as those with HIV/AIDS, cancer, or organ transplants. Symptoms may include cough, shortness of breath, chest pain, fever, and weight loss. In some cases, it can lead to serious complications if left untreated.
Geotrichum is a genus of saprophytic fungi that can be found in various environments, including soil, water, and organic matter. The most common species is Geotrichum candidum, which is often associated with dairy products and is used in the production of certain cheeses. However, G. candidum and other Geotrichum species can also be isolated from human respiratory samples and are occasionally identified as causes of respiratory tract infections or allergic reactions in immunocompromised individuals.
In a medical context, Geotrichum infection is called geotrichosis. It primarily affects the lungs and may present with symptoms such as cough, fever, chest pain, and shortness of breath. In severe cases, the infection can spread to other organs, including the brain, causing meningitis or brain abscesses. Geotrichum infections are typically treated with antifungal medications, such as amphotericin B, fluconazole, or itraconazole.
It is important to note that Geotrichum species are commonly found in the environment and on human skin without causing any harm. Invasive geotrichosis is relatively rare and primarily affects individuals with weakened immune systems due to conditions like HIV/AIDS, cancer, or organ transplantation.
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Pulmonary2
- Pulmonary geotrichosis is the most frequent form of geotrichosis. (wikipedia.org)
- Another symptom of pulmonary geotrichosis includes fine to medium rales. (wikipedia.org)
Fungal2
- Magnusiomyces and Geotrichum species are ascomycetous yeasts that can cause potentially life-threatening invasive fungal infections commonly referred to as geotrichosis. (bvsalud.org)
- Furthermore, we evaluated the suitability of the fungal biomarkers galactomannan (GM) and ß-1,3-d-glucan (BDG), which are both recommended as surrogate markers for Magnusiomyces capitatus infection by the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) and the European Confederation of Medical Mycology (ECMM) joint clinical guidelines for the diagnosis and management of rare invasive yeast infections for detection of invasive geotrichosis. (bvsalud.org)
Infections1
- The laboratory diagnosis of geotrichosis involves collected fungi samples areas of infections without contamination. (wikipedia.org)
Geotrichum2
- Geotrichosis is a mycosis caused by Geotrichum candidum. (wikipedia.org)
- Bennett was able to differentiate infection by Geotrichum candidum from candidiasis, and diagnose the first case of geotrichosis. (wikipedia.org)
Aspergillosis1
- Bronchial geotrichosis is similar to the allergic reaction of aspergillosis. (wikipedia.org)
Lesions1
- Culturing the cylindrical barrel-shaped or elliptical fungi in considerable numbers in oral lesions is an indicator that a patient may have geotrichosis. (wikipedia.org)
Cases1
- Reported cases of geotrichosis have been characterized with symptoms of chronic or acute bronchitis. (wikipedia.org)
Types1
- Cutaneous geotrichosis has two different types of variants which include superficial and deep infection. (wikipedia.org)
Pulmonary geotrichosis2
- Pulmonary geotrichosis is the most frequent form of geotrichosis. (wikipedia.org)
- Another symptom of pulmonary geotrichosis includes fine to medium rales. (wikipedia.org)
Bronchial4
- The fungus can cause an infection known as geotrichosis, affecting the oral, bronchial, skin and bronchopulmonary epithelia. (wikipedia.org)
- Bronchial geotrichosis does not involve the lung instead the disease persists within the bronchial. (wikipedia.org)
- Bronchial geotrichosis is similar to the allergic reaction of aspergillosis. (wikipedia.org)
- Secondary active-evolutive cavitary pulmonary tuberculosis of the apicodorsal segment of the left upper lobe associated with bronchial tuberculosis and bronchial geotrichosis. (dolphinimaging.com.br)
Trichosporonosis2
- In a revision of almost 400 cases previously documented all over the world in patients with any underlying disease, the authors identified 287 cases of trichosporonosis and 99 cases of geotrichosis. (medscape.com)
- conducted the largest retrospective multicenter study on invasive trichosporonosis and geotrichosis in Italian patients suffering from HMs over a 20-year period. (medscape.com)
Candidiasis1
- Bennett was able to differentiate infection by Geotrichum candidum from candidiasis, and diagnose the first case of geotrichosis. (wikipedia.org)
Oral4
- Oral and vaginal geotrichosis is similar to thrush in its appearances and was often confused with this infection. (wikipedia.org)
- The difference between oral and vaginal geotrichosis can be determined using microscope analysis. (wikipedia.org)
- Culturing the cylindrical barrel-shaped or elliptical fungi in considerable numbers in oral lesions is an indicator that a patient may have geotrichosis. (wikipedia.org)
- Oral geotrichosis: report of 12 cases. (medscape.com)