Unknown 44

Mould identification: a virtual self assessment

Case history

A 69-year-old female presented with a productive cough, chest x-ray demonstrated opacification of pulmonary lesions of the right upper lobe of her lung. Biopsy revealed the presence of encapsulated yeast-like cells and the culture shown below was isolated.

Unknown 44 chest X-ray

Chest X-ray

Unknown 44 histopathology

Histopathology

Unknown 44 culture

Culture

Unknown 44 microscopy

Microscopy

Unknown 44 growth on CGB media

Growth on CGB media

Sugar assimilation results

Assimilation Tests: + Positive, - Negative, V Variable,
Glucose
+
L-Rhamnose
+
Galactose
+
D-Glucosamine
v
L-Sorbose
v
N-A-D-glucosamine
v
Sucrose
+
Glycerol
-
Maltose
+
Erythritol
-
Cellobiose
+,w
Ribitol
v
Trehalose
+
Galactitol
+
Lactose
-
D-Mannitol
+
Melibiose
-
D-Glucitol
+
Raffinose
+,w
∝-M-D-glucoside
+
Melezitose
v
D-Gluconate
+
Soluble Starch
+
DL-Lactate
-
D-Xylose
+
myo-Inositol
+
L-Arabinose
+,w
Nitrate
-
D-Arabinose
+
2-K-D-gluconate
+
D-Ribose
v
D-Glucuronate
+

Urease +, Growth on 0.1% cycloheximide -, growth at 37C +

What is your identification?