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Book Contents

Histopathology and Cytology of
Poultry Diseases
By Ivan Dinev, DVM, PhD


INFECTIOUS BURSAL DISEASE (GUMBORO)

Fig. 1. Almost complete disappearance
of the normal follicular structure
of B. Fabricii, resulting from severe
degenerative necrobiotic lesions
and inflammatory cell infiltration.
H/E, Bar = 70 µm.

Fig. 1. Almost complete disappearance of the normal follicular structure of B. Fabricii, resulting from severe degenerative necrobiotic lesions and inflammatory cell infiltration. H/E, Bar = 70 µm.

 
Fig. 2. Marked interfollicular inflammatory
oedema, haemorrhages and
inflammatory necrotic lesions in the
medullary zone of bursal follicles.
H/E, Bar = 100 µm.

Fig. 2. Marked interfollicular inflammatory oedema, haemorrhages and inflammatory necrotic lesions in the medullary zone of bursal follicles. H/E, Bar = 100 µm.

 
Fig. 3. Fragment of Fig. 2. Inflammatory
necrotic detritus among the B.
Fabricii follicles. H/E, Bar = 50 µm.

Fig. 3. Fragment of Fig. 2. Inflammatory necrotic detritus among the B. Fabricii follicles. H/E, Bar = 50 µm.

 
Fig. 4. Sometimes, in the medullary
zone of follicles, cystic cavities could
be formed that contain exudate, imflammatory
cells and detritus mass.
H/E, Bar = 35 µm.

Fig. 4. Sometimes, in the medullary zone of follicles, cystic cavities could be formed that contain exudate, imflammatory cells and detritus mass. H/E, Bar = 35 µm.

 
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