UIP is not a disease but a histopathologic and radiologic pattern of interstitial lung disease. Diagnosis requires multidisciplinary team approach involving chest physicians, radiologists, and pathologists. Honeycombing, involving more than 5% of lung volume, is almost 100% specific
NSIP is second most common interstitial lung disease after UIP. Typically affects middle-aged adults (40-50 years). More common in women due to collagen vascular disease association. Smoking is neither protective nor risk factor
ILD affects lung tissue and space around alveoli, disrupting normal healing. Main symptoms include shortness of breath, coughing, fatigue, and weight loss. Average survival is between three and five years
Cor pulmonale is right ventricle enlargement due to increased lung pressure. Chronic disease causes right ventricular hypertrophy, acute causes dilatation. Disease must originate in pulmonary circulation system
Bronchi are two large tubes carrying air from trachea to lungs. Begin at carina at fifth thoracic vertebra, dividing into right and left bronchi. Right bronchus is 1 inch long, left bronchus 1.5 inches long. Bronchi branch into bronchioles ending at alveoli for oxygen exchange
Pneumonitis is noninfectious lung inflammation caused by various factors. Pneumonia is infectious lung infection caused by germs. Pneumonitis can result from environmental substances, medications, or radiation