Hello, The central broncho vascular markings prominence do indicate underlying respiratory tract infection via some sort of bacteria or virus most likely. If the associated symptoms are also narrated, better guidelines can be figured out ahead. However, inference can be obtained that there is nothing serious matter in this regard and the control of basic infection matters most to clear the issue: - Walk in fresh air for getting enough amount of pure ozone - Deep breathing exercises - Inhalation of vapors of boiled water with added tincture Benzoin - Avoid exposure to atmospheric pollen, fumes of automobiles - Avoid active or passive smoking - Gargles with salted lukewarm water added peppermint oil - Prescription of antibiotic, anti viral, decongestant medications with or without steroids as per the choice of your primary care Remain in regular follow up with your doc for best results. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Bhagyesh V. Patel, General Surgeon