Aspergillus Section Nigri-Associated Calcium Oxalate Crystals in an Eurasian Eagle Owl (Bubo bubo)

Figure 2

Eurasian eagle owl, coelomic cavity. The abdominal air sac (A) thickened by friable tan to grey exudate. The caudal aspect of the thoracic air sacs coated by black fuzzy material (black arrows). Numerous 1-2 mm yellow-tan plaques on the serosal surfaces of the abdomen (grey arrow). The heart (H) and liver (L) are labeled for anatomic orientation.