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    Book Contents

    1. Histopathology and Cytology Associated with Bacterial Diseases
    2. Histopathology and Cytology Associated with Viral Diseases
    3. Histopathology and Cytology Associated with Neoplastic Diseases
    4. Histopathology and Cytology Associated with Parasitic Diseases
    5. Histopathology and Cytology Associated with Mycotic Diseases
    6. Histopathology and Cytology Associated with Deficiency Diseases
    7. Histopathology and Cytology Associated with Other Diseases
    Histopathology and Cytology of
    Poultry Diseases
    By Ivan Dinev, DVM, PhD


    DEEP PECTORAL MYOPATHY

    Fig. 1. The condition is resulting from ischaemic necrosis due to inadequate blood supply of deep pectoral muscle groups of a various size. Initial stage of DPM, characterized with discoid necrosis (arrow) of muscle fibres, manifested by separation of single sarcomeres. H/Е, bar = 25 µm.

    Fig. 1. The condition is resulting from ischaemic necrosis due to inadequate blood supply of deep pectoral muscle groups of a various size. Initial stage of DPM, characterized with discoid necrosis (arrow) of muscle fibres, manifested by separation of single sarcomeres. H/Е, bar = 25 µm.

     
    Fig. 2. Histologically, the altered muscle fibres appear enlarged at a various extent, distinctly eosinophilic with rhexic or absent nuclei. H/E, Bar = 40 µm.

    Fig. 2. Histologically, the altered muscle fibres appear enlarged at a various extent, distinctly eosinophilic with rhexic or absent nuclei. H/E, Bar = 40 µm.

     
    Fig. 3. Degenerative necrobiotic changes from the Zenker’s necrosis type, enhanced acidophilia, heterophil leukocytes and macrophages among the dead muscle tissue. H/Е, bar = 35 µm.

    Fig. 3. Degenerative necrobiotic changes from the Zenker’s necrosis type, enhanced acidophilia, heterophil leukocytes and macrophages among the dead muscle tissue. H/Е, bar = 35 µm.

     
    Fig. 4. Mucoid degeneration and a distinct border between the affected and intact muscle tissue areas. H/Е, bar = 35 µm.

    Fig. 4. Mucoid degeneration and a distinct border between the affected and intact muscle tissue areas. H/Е, bar = 35 µm.

     
    Fig. 5. At a later stage, a substitution of atrophied fibres by adipose tissue could be detected. H/E, Bar = 40 µm.

    Fig. 5. At a later stage, a substitution of atrophied fibres by adipose tissue could be detected. H/E, Bar = 40 µm.

     
    Fig. 6. A late (chronic) lesion. The place of necrotic musculature is occupied by fibrous tissue. H/Е, bar = 50 µm.

    Fig. 6. A late (chronic) lesion. The place of necrotic musculature is occupied by fibrous tissue. H/Е, bar = 50 µm.

     
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