Mycology - Opportunistic Yeasts

Front 1

All opportunistic yeasts are monomorphic

Back 1

All opportunistic yeasts are monomorphic

Front 2

Sputum was collected from a 65-year-old female patient with an apparent lower respiratory infection and a preliminary report said that yeast-like cells were seen on a PAS stain.
On follow up, flat, white yeast cells were isolated from a culture of the sputum.
A Giemsa stain did not show capsules but pseudohyphae were found.
The infection most likely derived from

Back 2

non-ecapsulated rules out crytococcus which is the only one that is not human flora.

Pseudohyphae indicates candida albicans

Front 3

All opportunistic yeasts are normal flora expect

Back 3

Cryptococcosis which is found in pigeon dung and eucalyptus trees

Front 4

An 80-year-old female is in the hospital has been diagnosed with squamous cell carcinoma of the cervix and is currently on broad-spectrum intravenous antibiotics and has a central venous catheter.
Her temperature has increased to 39 C and she is passing blood in her urine.
A blood culture reveals spherical to elongate cells that reproduce by budding.
What fungal genus is the cause of this disease?

Back 4

ovoid cells reproducing by budding indicates yeast.

Front 5

A 30-year-old female was diagnosed with an HIV infection two years ago, and was given aggressive chemotherapy.
Her CD4+ T cell count dropped below normal.
She developed a pneumonia infection that resulted in the sudden onset of fever, chills and coughing.
X-ray images revealed diffuse interstitial pneumonia.
Examination reveals fever, generalized lymphadeno-pathy, respiratory distress, cyanosis and rales.
The natural reservoir of this disease is

Back 5

Pneumocystosis

Front 6

-spread by rodents
-Lung problems (granulomas, consolidation, pneumonia)
-immunosupressed

Back 6

Pneumocystosis

Front 7

A 10-year-old male and his 6-year-old sister visited their aunt and uncle who lived on a farm during which the uncle let the children play with his pet pigeons that were kept in a large pen behind the house.
A month following the visit, she developed headaches, dizziness and a fever that progressed to seizures.
A CT scan showed inflamed meninges and a preparation of the cerebrospinal fluid showed globose yeast cells with thick polysaccharide capsules.
She most likely was exposed to the organism

Back 7

while playing with the pet pigeons

cryptococcosis

inhale balstosporese from soil or pigeon dung

Front 8

cryptococcosis is a disease that exists in nature in the feces of

Back 8

pigeon

Front 9

Pneumocystosis is a disease that exists in nature in the feces of

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rodents

Front 10

HIV patient with history of chills and dry cough. examination reveals intersital and alveolar granulomas in the lungs. microcopic examination of lung fluid will reveal

Back 10

Pneumoncystosis
thick-walled, crescent shaped cysts with many internal bodies