2015, Cilt 45, Sayı 2, Sayfa(lar) 096-102 |
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A Cryptococcal Meningitidis Case, HIV Negative, with Pigeon Contact |
Feza OTAĞ1, Gülden ERSÖZ2, Nilgün KARABIÇAK3, Elif TAŞDEMİR1, Onur GÜLTEKİN2 |
1Mersin Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Mersin 2Mersin Üniversitesi Tıp Fakültesi, Enfeksiyon Hastalıkları Anabilim Dalı, Mersin 3Türkiye Halk Sağlığı Kurumu, Mikoloji Referans Laboratuvarı, Mersin |
Keywords: Cryptococcus neoformans var. grubii, Cryptococcal meningitis, pigeon breeding |
Cryptococcosis is an infection which gains importance
with the rise of HIV/AIDS pandemic worldwide and its
most common cause is Cryptococcus neoformans. History
of contact with pigeons has an important place in the epidemiology
of C. neoformans that can be seen anywhere in
the world. This report presents an HIV negative, 75-yearold,
female, with cirrhosis due to chronic HBV who applied
to our hospital with complaints of headache, dizziness,
abdominal pain, nausea and diplopia, and papular lesions
on her face. Budding and encapsulated yeast cells were
observed in Gram and negative stainings of the cerebrospinal
fluid samples that were collected on admission from the
patient who was inspected to have bilateral papilledema.
Mucoid colonies of cream color in Sabouraud dextrose
agar and brown color in birdseed (niger seed, Guizotia
abyssinica) agar were grown on the third day of the culture.
Budding and encapsulated yeast cells were detected in
Gram smears of blood culture bottles that were positive 72
hours after admission to the hospital, and similar colonies
were grown. Both of the two isolates were identified as
C. neoformans by conventional methods and Vitek 2
(bioMérieux, France) system and as C. neoformans var.
grubii by DNA sequencing analysis. Minimum inhibitory
concentration values which were performed according to
the “Clinical and Laboratory Standards Institute” M27-A3
document were determined for amphotericin-B (0.5 μg/
ml), fluconazole (0.125 μg/ml), itraconazole (0.5 μg/ml),
posaconazole (0.25 μg/ml), voriconazole (<0.015 μg/ml),
anidilofungin (16 μg/ml) and caspofungin (16 μg/ml).
Papular lesions regressed after amphotericin-B and
flucytosine treatment. Dialysis was implemented due to
increasing creatinine values, however patient was lost due
to emerging complications. Breeding pigeons in her
balcony have been identified as the most important risk
factor for the patient. Systemic spreading of yeast may have
occurred due to prolonged inhalation of airborne pigeon
excretions.
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