PNEUMOCONIOSIS

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PNEUMOCONIOSIS

• VINEETHA SUDHEESH

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• Definition
• Types
• Pathogenesis
• Signs and symptoms
• Complications
• Diagnosis
• Treatment
• Prevention

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Definition

• Fibrosis and scarring of the lungs secondary to
  repeated inhalation of dust associated with some
  occupation

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Types

• Silicosis
• Anthracosis
• Asbestosis
• Byssinosis
• Bagassosis
• Farmers lung

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Pathogenesis
Dust particles
Lungs
Inflammation
chronic
Elastic tissue
Fibrous tissue
Scarring of lungs
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Signs and symptoms

• Pulmonary symptoms
• Dyspnoea
• Cough with expectoration
• Chest discomfort
• Haemoptysis

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• General symptoms
• Ill health
• Restless sleep
• Loss of appetite
• Loss of weight
• Nails pale and bluish

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Complications

• Lung fibrosis
• Lung cancer
• Pleurisy
• CHF
• Cor pulmonale

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Diagnosis

• History
• Exposure
• Years of exposure
• Protective clothing used or not
• Clinical examination

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• Investigations
• Chest X ray
• Pulmonary function test
• CT scan
• Bronchoscopy with lung biopsy

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Silicosis
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Anthracosis
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Asbestosis pl. calcification
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Asbestosis Mesothelioma
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Treatment

• Avoid further exposure
• Medical treatment
• Oxygen inhalation
• Immunization
• Antibiotics
• Surgical treatment
• Lung transplantation

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Prevention

• Dust control
• Isolation and enclosure
• Hydroblasting
• Personal protection
• Periodic examination
• Legal measures

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Thank you