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<ul><ul><ul><ul><ul><li>Dr. Prof. TITO’s Unit  </li></ul></ul></ul></ul></ul><ul><li>Dr. Pandichelvan R . </li></ul>
 
 
 
 
<ul><li>Most commonly manifest as  post primary TB  rather than Primary TB in older patients </li></ul><ul><li>Purely Nodu...
Imaging Findings Discrete Distinctive Pin-point opacities  WHY NODULARITY? Nodule size  1 – 2 mm  in diameter  - SPHERICAL...
Differential diagnosis PNEUMOCONIOSIS -  Coal Workers Pneumoconiosis - Silicosis - Siderosis - Stannosis SARCOIDOSIS METAS...
SILICOSIS : Multiple  well circumscribed nodules  Uniform density Upper lobe predominance Mainly posterior lobe Nodular Ca...
COAL WORKERS PNEUMOCONIOSIS: Simple Pneumoconiosis small round nodule 1 – 5mm  granular densities calcifications begin as ...
Metastatic Lung Disease 75% -multiple pulmonary nodules B/L with basal predominance peripheral lesions ( subpleural ) cavi...
SARCOIDOSIS B/L symmetrical diffuse pulmonary disease B/L Hilar lymphadenopathy Upper zone mainly Imaging Patterns : m/c n...
 
 
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X-Ray: Miliary Tuberculosis

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X-Ray: Miliary Tuberculosis

  1. 1. <ul><ul><ul><ul><ul><li>Dr. Prof. TITO’s Unit </li></ul></ul></ul></ul></ul><ul><li>Dr. Pandichelvan R . </li></ul>
  2. 6. <ul><li>Most commonly manifest as post primary TB rather than Primary TB in older patients </li></ul><ul><li>Purely Nodular Pattern in febrile patient with acute presentation suggestive of hematogenous infection, particularly miliary TB. </li></ul><ul><li>Radiological evidence usually takes several weeks to appear. </li></ul>MILIARY TUBERCULOSIS
  3. 7. Imaging Findings Discrete Distinctive Pin-point opacities WHY NODULARITY? Nodule size 1 – 2 mm in diameter - SPHERICAL LESION IN Miliary ( millet seed ) Pattern INTERSTITIUM B/L even distribution - WELL CIRCUMSCRIBED Basal Predominance HOMOGENOUS PATTERN Rare or non-existent calcifications Upto 30 % no radiological signs Thickening of intralobar fissure / interlobular septa Nodular irregularity of vessels HRCT – more sensitive
  4. 8. Differential diagnosis PNEUMOCONIOSIS - Coal Workers Pneumoconiosis - Silicosis - Siderosis - Stannosis SARCOIDOSIS METASTATIC LUNG DISEASES NON TB INFECTIONS - Histoplasmosis - Blastomycosis - Cryptococcosis - Nocardiosis - Coccidiodomycosis BRONCHIOLITIS OBLITERANS
  5. 9. SILICOSIS : Multiple well circumscribed nodules Uniform density Upper lobe predominance Mainly posterior lobe Nodular Calcification seen in 10 – 20 % cases Hilar lymphadenopathy Egg Shell Calcification :
  6. 10. COAL WORKERS PNEUMOCONIOSIS: Simple Pneumoconiosis small round nodule 1 – 5mm granular densities calcifications begin as central dot Complicated Pneumoconiosis large opacities > 1cm upper lung zones start peripherally
  7. 11. Metastatic Lung Disease 75% -multiple pulmonary nodules B/L with basal predominance peripheral lesions ( subpleural ) cavitatory lesions squamous carcinomas sarcomas calcification rare ,except in osteogenic sarcoma chondrosarcoma mucinous adenocarcinoma
  8. 12. SARCOIDOSIS B/L symmetrical diffuse pulmonary disease B/L Hilar lymphadenopathy Upper zone mainly Imaging Patterns : m/c nodular reticulo-nodular reticular pattern (rare) air space consolidaton ground glass opacification

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