摘要："Introduction: Collagen vascular diseases are group of diseases with specific characteristics. Pulmonary manifestations are commonly present in collagen Vascular Diseases. The research was conducted to study pulmonary manifestations of collagen vascular diseases clinically; to study the demographic incidence in patients with pulmonary manifestations in collagen vascular diseases; to study radiological manifestations in terms of Chest X-Ray & HRCT Thorax; and also to study pulmonary functions tests in collagen vascular diseases. Material & methods: This is a retrospective study on 50 patients of already diagnosed patient collagen vascular diseases. Results: Pulmonary manifestations are present in 40% of patients had scleroderma (SC), 30% of cases of Systemic Lupus Erythematosis (SLE), 20% of patients of Rheumatoid Arthritis while 10% of Patients with Mixed Connective Tissue Disorders. Restrictive pattern is common in all types of collagen vascular diseases on pulmonary function testing. 24% of patients of collagen vascular disease had pulmonary arterial hypertension. On HRCT reticulonodular pattern is more common. Conclusion: Pulmonary manifestations are commonly present in collagen vascular diseases. Broad choice of investigations should be done to prevent early mortality & morbidity."
