Scedosporium (ex. Pseudoalleschia) boydii
MICROBIOLOGY
- Nomenclature change: Before the era of molecular phylogeny and sequencing, the nomenclature of fungi allowed for the use of names describing sexual and asexual forms. So based on their ability to develop sexual structures on culture media, Pseudoallescheria boydii and Scedosporium apiospermum were considered the same species, as Pseudallescheria is the teleomorph state of Scedosporium.
- Phylogenetic analysis has determined that P. boydii (anamorph or asexual form: Scedosporium boydii) is different from P. apiosperma (anamorph S. apiospermum).
- As dual nomenclature is abandoned, the preferred name to refer to P. boydii has become Scedosporium boydii, for example.
- Scedosporium species include: S. apiospermum, S. boydii, S. aurantiacum
- Filamentous fungus. Thin-walled, septate, branching hyphae; sized 2.5-5 microns.
- Ubiquitous environmental mold; is typically found in soil, sewage, and brackish/polluted water.
- Identification through fungal culture is imperative as histopathology is indistinguishable from Aspergillus.
- Acquisition through inhalation or traumatic inoculation through the skin.
- High concentrations of Scedosporium species can be found near gas stations, urban parks, industrial sites, and agricultural areas (this is related to nitrogen concentration and pH)[9].
There's more to see -- the rest of this topic is available only to subscribers.
Last updated: January 23, 2023
Citation
Fabre, Valeria. "Scedosporium (ex. Pseudoalleschia) Boydii." Johns Hopkins ABX Guide, The Johns Hopkins University, 2023. Pediatrics Central, peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540456/all/Scedosporium__ex__Pseudoalleschia__boydii.
Fabre V. Scedosporium (ex. Pseudoalleschia) boydii. Johns Hopkins ABX Guide. The Johns Hopkins University; 2023. https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540456/all/Scedosporium__ex__Pseudoalleschia__boydii. Accessed October 14, 2024.
Fabre, V. (2023). Scedosporium (ex. Pseudoalleschia) boydii. In Johns Hopkins ABX Guide. The Johns Hopkins University. https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540456/all/Scedosporium__ex__Pseudoalleschia__boydii
Fabre V. Scedosporium (ex. Pseudoalleschia) Boydii [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2023. [cited 2024 October 14]. Available from: https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540456/all/Scedosporium__ex__Pseudoalleschia__boydii.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Scedosporium (ex. Pseudoalleschia) boydii
ID - 540456
A1 - Fabre,Valeria,M.D.
Y1 - 2023/01/23/
BT - Johns Hopkins ABX Guide
UR - https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540456/all/Scedosporium__ex__Pseudoalleschia__boydii
PB - The Johns Hopkins University
DB - Pediatrics Central
DP - Unbound Medicine
ER -