Abstract. We report the first case of fungemia caused by Paracoccidioides lutzii in a 51-year-old male farm worker from the central-west region of Brazil. The fungus was isolated from blood cultures and the species was confirmed by phylogenetic identification. Despite specific treatment and intensive care, the patient died 39 days after admission.

Clinical Paracoccidioides spp. isolates from patients with paracoccidioidomycosis (PCM) in Mato Grosso, Brazil exhibit different patterns of serologic reactivity. The results observed for reactions of radial immunodiffusion against the commonly used exoantigens containing a 43-kDa glycoprotein (gp43) suggest that this fungus exhibits major antigenic variability by geographic region. There is a phylogenetic gap between Paracoccidioides spp. isolates among different regions of Latin America. In particular, those from the central region of Brazil (i.e. Mato Grosso state) exhibit a lower rate of genetic similarity. We aimed at investigating the phylogenetic classification of clinical isolates of Paracoccidioides spp. in Central Brazil and the different antigenic profiles that produce. Exoantigens were obtained from five clinical isolates: two P. brasiliensis (Pb166 and Pb2880) and three P. lutzii (PL2875, PL9840, and PL2912). The protein/glycoprotein profiles of P. lutzii exoantigens were different from each other. Isolate PL9840 exhibited the most distinct bands, and isolates PL2875 and PL2912 exhibited more diffuse bands and a very intense band between 50 and 60 kDa. P. brasiliensis isolates had similar protein profiles, exhibiting a low-intensity band at 220 kDa and a diffuse band between 50 and 60 kDa. P. lutzii isolates exhibit high species-specific antigen variability, which we have already been assessed in proteomic studies.

Introduction: The knowledge about fungal diversity in Mato Grosso, central Brazil records unknown and scattered information, some related to taxonomy, ecology and description of species listed for the geographic region, consisting of three main biomes: Cerrado, Amazon and Pantanal.  Aims: To present fungi related to the Mato Grosso region, aspects and species cataloged for central region of Brazil, reported through an extensive review of integrative scientific literature in publications in databases from 1979-2021. Results: We identified 190 articles included in the review, of which 69 (36.3%) were highlighted, due to their fungal aspects for the Midwest region of Brazil, medical mycology shows a strong relationship in publications to pathogenic, mycelial and yeast fungi. The Cerrado of Mato Grosso is the main biome in the Brazilian Midwest, with the largest number of records, with 88.6% of the findings, followed by the Amazon biome with 8.6% and the Pantanal with 5.7%. The capital of Mato Grosso, Cuiabá (67.1%), contributes with most publications relevant to fungi for the Midwest region, showing a wealth and variety. The phylum Ascomycota (56%) had the highest number of records in research, the class of Eurotiomycetes (21.5%) had the highest number of records and the most expressive order was that of Onygenales (30%). Researches with human clinical material (66.3%) were the most representative. Conclusion: Assessing the results presented in this study, we can observe that the medical and clinical mycology, including systemic fungi, mainly from the genera Cryptococcus, Candida and Paracoccidioides, were the most studied for the Mato Grosso region, as they present characteristics of pathogenic fungal entities that cause infections in immunocompetents and immunocompromised patients.