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Book Contents

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


STAPHILOCOCCUS AUREUS INFECTIONS

Fig. 1. Widespread coagulative necrosis
(N) in the liver, surrounded
by a haemorrhagic zone as a manifestation
of staphylococcal septicaemia
in a hen. H/E, Bar = 35 µm.

Fig. 1. Widespread coagulative necrosis (N) in the liver, surrounded by a haemorrhagic zone as a manifestation of staphylococcal septicaemia in a hen. H/E, Bar = 35 µm.

 
Fig. 2. Interstitial and parenchymatous
myocarditis in a broiler
chicken. Bacterial colonization
and bacterial thrombi in the myocardium
(arrows) in staphylococcal
septicaemia. H/E, Bar = 25 µm.

Fig. 2. Interstitial and parenchymatous myocarditis in a broiler chicken. Bacterial colonization and bacterial thrombi in the myocardium (arrows) in staphylococcal septicaemia. H/E, Bar = 25 µm.

 
 Fig. 3. Myocardial infarction (I) in a
bird that has survived a staphylococcal
septicaemia. H/E, Bar = 30 µm.

Fig. 3. Myocardial infarction (I) in a bird that has survived a staphylococcal septicaemia. H/E, Bar = 30 µm.

 
Fig. 4. Bacterial emboli obturating
capillary sinusoids and intensive degenerative
necrobiotic lesions of the
liver, resulting from metastasis of a
local focus of staphylococcal infection.
H/E, Bar = 35 µm.

Fig. 4. Bacterial emboli obturating capillary sinusoids and intensive degenerative necrobiotic lesions of the liver, resulting from metastasis of a local focus of staphylococcal infection. H/E, Bar = 35 µm.

 
Fig. 5. Staphylococcal osteomyelitis,
secondary to septicaemia. An inflammatory
necrotic focus, bacterial colonization
and bone marrow congestion.
H/E, Bar = 30 µm.

Fig. 5. Staphylococcal osteomyelitis, secondary to septicaemia. An inflammatory necrotic focus, bacterial colonization and bone marrow congestion. H/E, Bar = 30 µm.

 
Fig. 6. Staphylococcal osteomyelitis.
Bacterial thrombus (arrow) obturating
a bone marrow sinusoid. H/E, Bar
= 25 µm.

Fig. 6. Staphylococcal osteomyelitis. Bacterial thrombus (arrow) obturating a bone marrow sinusoid. H/E, Bar = 25 µm.

 
Fig. 7. Staphylococcal osteomyelitis.
Focal inflammatory necrotic lesions in
the growth plate of the proximal femur
in a broiler chicken. H/E, Bar = 40 µm.

Fig. 7. Staphylococcal osteomyelitis. Focal inflammatory necrotic lesions in the growth plate of the proximal femur in a broiler chicken. H/E, Bar = 40 µm.

 
Fig. 8. Staphylococcal tenosynovitis.
Serofibrinous exudate filling the
synovial space, central necroses, with
clusters of bacterial colonies among
them. H/E, Bar = 25 µm.

Fig. 8. Staphylococcal tenosynovitis. Serofibrinous exudate filling the synovial space, central necroses, with clusters of bacterial colonies among them. H/E, Bar = 25 µm.

 
Fig. 9. Staphylococcal tenosynovitis.
Central caseous necrotic lesions
and clusters of bacterial colonies.
Intensive inflammatory cell reaction
(lymphocytes, granulocytes and
macrophages) affecting the tendon
sheath layers. H/E, Bar = 40 µm.

Fig. 9. Staphylococcal tenosynovitis. Central caseous necrotic lesions and clusters of bacterial colonies. Intensive inflammatory cell reaction (lymphocytes, granulocytes and macrophages) affecting the tendon sheath layers. H/E, Bar = 40 µm.

 
Fig. 10. Staphylococcal arthritis. Degenerative
necrobiotic lesions and
massive bacterial colonization (St) of
the distal femoral articular cartilage
in a growing male broiler breeder.
H/E, Bar = 40 µm.

Fig. 10. Staphylococcal arthritis. Degenerative necrobiotic lesions and massive bacterial colonization (St) of the distal femoral articular cartilage in a growing male broiler breeder. H/E, Bar = 40 µm.

 
Fig. 11. Staphylococcal tenosynovitis.
Axial necrosis (N) of a tendon and
perifocal inflammatory oedema (e).
H/E, Bar = 30 µm.

Fig. 11. Staphylococcal tenosynovitis. Axial necrosis (N) of a tendon and perifocal inflammatory oedema (e). H/E, Bar = 30 µm.

 
This book is protected by the copyright law. The reproduction, imitation or distribution of the book in whole or in part, in any format (electronic, photocopies etc.) without the prior consent, in writing, of copyright holders is strictly prohibited.

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