I am feeling pain in left arm since a one month...

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Regarding your question
what's the meaning of prominent hilar bronchovascular markings
Bronchovascular markings represent vessels in the lungs. Those fine vessels are visible in chest x-ray as fine white lines. These are abnormal or increased if they are too much and reach till the periphery of lung. Increased bronchovascular markings is a broad tem and can be seen in normal individuals also.
Common causes of increased bronchovascular markings are
1. chronic bronchitis : caused by long term cigarettee smoking eventually damaging the lung and also causing COPD ( chronic obstructive pulmonary disease).
2.asthma : due to hyperinflation in lung caused due to air trapping
3. bronchopneumonia : patchy lung infection
4. heart failure causing increased stagnation of blood
5. interstitial lung disease due to allergens causing gradual inflammation in the lung.
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