Fungal infections in solid organ transplant recipients.

https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-6143.2004.00696.x

Combined Percutaneous Mechanical and Chemical Thrombectomy for Renal Vein Thrombosis in Kidney Transplant Recipients

We report a case of Neocosmospora vasinfecta keratitis in a 55-year-old man. While the patient did not recall any specific trauma or eye injury, he might have sustained a trivial wound during the course of his duties as a farmer. Direct examination of corneal scrapings revealed fungal filaments. As topical treatment with natamycin and econazole and subsequent systemic ketoconazole therapy failed, a full thickness therapeutic keratoplasty was performed. Post-operative treatment with amphotericin B and clotrimazole combined with cyclosporine resulted in a complete cure. The residual corneal infiltration in the recipient cornea became clear in a week. The fungal isolate was initially identified as a Fusarium species, but later reidentified through the use of morphological characteristics and sequence analysis of the internal transcribed spacer region as N. vasinfecta. The latters is a Hypocrealean fungus not hitherto reported as a causative agent of keratomycosis.

Corneal ulcer due to Neocosmospora vasinfecta in an immunocompetent patient

We report Neocosmospora vasinfecta infection following chemotherapy for acute nonlymphocytic leukemia. N. vasinfecta, a plant pathogen, was identified by culture and genetic sequencing. Susceptibility testing revealed in vitro resistance for common antifungals.

Disseminated Neocosmospora vasinfecta infection in a patient with acute nonlymphocytic leukemia.

In this study, eighty isolates of Fusarium were obtained from the uncultivated soils and roots of chickpea plants showing typical black root rot symptoms from different areas of Kermanshah province, west Iran during 2015 to 2017. Based on colony morphology, growth pattern, and micromorphological characteristics, the most prevalent Fusarium species recovered from uncultivated soil were F. redolens, 38 isolates (64%), followed by F. oxysporum, 12 isolates (20%), F. solani, seven isolates (11%) and Neocosmospora vasinfecta, three isolates (5%). All isolates recovered from chickpea plants with black root rot symptom were identified as F. redolens according to macro-micromorphological and molecular characteristics. After grouping, 27 isolates were selected for molecular confirmation by phylogeny of DNA sequence data for the internal transcribed spacer (ITS) rDNA and translation EF1α intergenic regions. The results of the pathogenicity test under greenhouse condition revealed that all isolates of F. redolens obtained from chickpea plants with black root rot symptoms in this study and N. vasinfecta from uncultivated soil are pathogenic to chickpea cultivar Bivanij. Two weeks after inoculation with F. redolens and N. vasinfecta, symptoms developed as black cankers that extended upward and downward of roots of all emerged seedlings. Re-isolation from all inoculated plants after observation of symptoms were performed, and isolates were compared to original cultures thus fulfilling Koch’s postulates. According to the results of canonical correspondence analysis, soil texture, altitude, CaCO3, EC, carbon, organic matter and pH in descending order were recognized as the most important environmental variables for the distribution of Fusarium species in soil. Fusarium redolens reflected a soil with very low sand, carbon, organic matter and intermediate pH, EC and CaCO3. Results of this study suggest that previously reported F. oxysporum in western Iran on chickpea might have been mistaken. This is the first report of pathogenicity of F. redolens and N. vasinfecta on chickpea from Iran.

Molecular characterization and distribution of Fusarium isolates from uncultivated soils and chickpea plants in Iran with special reference to Fusarium redolens

Leg granuloma due to Neocosmospora vasinfecta in a renal graft recipient.

Favorable outcome under simple heparin therapy of recurrent anuria due to graft renal vein thrombosis and subcapsular hematoma.

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Leg granuloma due to Neocosmospora vasinfecta in a renal graft recipient.

Favorable outcome under simple heparin therapy of recurrent anuria due to graft renal vein thrombosis and subcapsular hematoma.