Unknown 23

Mould identification: a virtual self assessment

Case history

A 29 year old male with a past history of treated pulmonary tuberculosis presented with general fatigue, tiredness, weight loss, a productive cough, especially at night, and numbness in his fingertips and toes. A chest x-ray and a computed tomography(CT) scan showed the presence of a "fungal ball" in the right and left apical regions. A Grocott’s methenamine silver (GMS) stained tissue section of lung showed fungal balls of hyphae and the fungus shown below was isolated.