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Book Contents

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


CARTILAGINOUS LUNG NODULES IN BROILER CHICKENS

Fig. 1. Cartilaginous or osteocartilaginous
lung nodules are most commonly
encountered in broiler chickens after
the age of 3 weeks. They are divided
into hyaline cartilaginous, mineralized
cartilaginous and osseous. Their
localization is in the parenchyma of
pulmonary lobules at a distance from
large air ducts or blood vessels. The
causes are unknown. The condition
is largely prevalent in chickens having
survived an ascites episode. H/E, Bar
= 30 µm.

Fig. 1. Cartilaginous or osteocartilaginous lung nodules are most commonly encountered in broiler chickens after the age of 3 weeks. They are divided into hyaline cartilaginous, mineralized cartilaginous and osseous. Their localization is in the parenchyma of pulmonary lobules at a distance from large air ducts or blood vessels. The causes are unknown. The condition is largely prevalent in chickens having survived an ascites episode. H/E, Bar = 30 µm.

 
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