It’s time to “stirrup” a new
#CaseStudySaturday! A 20-year-old female with a lower back rash & burning pain after being stepped on by a horse. Routine aerobic cultures surprisingly yielded the pathogen… Comment your guess below.
asm.social/36s
#ASMClinMicro
ALT A 20-year-old female with lower back rash (circular lesions) & burning pain for 1 week, after being stepped on by a horse. The rash consisted of multiple circular lesions with honey-colored discharge that were slightly scabbed over. An aerobic/anaerobic culture was ordered. A colony Gram stain was performed, which demonstrated septate hyphae, arthroconidia and chlamydospores. A colony tape prep with Lactophenol Aniline Blue demonstrated these same structures plus macroconidia. Subsequently, MALDI-TOF MS
was performed using an alternative library, which led to this
surprising organism identification.
What's the diagnosis?
A. Nocardia.
B. Dermatophyte.
C. Fusarium.
D. Blastomyces.