Clinical presentation, diagnosis and management of Cryptococcus gattii cases: Lessons learned from British Columbia
E Galanis, L Hoang, P Kibsey, M Morshed, P Phillips
The environmental fungus Cryptococcus gattii emerged on Vancouver
Island, British Columbia (BC), in 1999. By the end of 2006, it led to
176 cases and eight deaths - one of the highest burdens of C gattii
disease worldwide. The present paper describes three cases, and the
BC experience in the diagnosis and management of this infection.
All three cases presented with pulmonary findings, including cryptococcomas
and infiltrates. One also presented with brain cryptococcomas.
Cases were diagnosed by chest and brain imaging, and
laboratory evidence including serum or cerebrospinal fluid cryptococcal
antigen detection and culture of respiratory or cerebrospinal
fluid specimens. Genotyping of fungal isolates confirmed infection
with C gattii VGIIa. Pulmonary cases were treated with fluconazole.
One patient with central nervous system disease was treated with
amphotericin B followed by fluconazole. Although this infection
remains rare, clinicians should be aware of it in patients with a compatible
clinical presentation who are either living in or returning
from a trip to BC.
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