Congenital anomalies of the pulmonary system are developmental abnormalities of the lungs. Examples of congenital anomalies of the pulmonary system include: Table showing congenital anomalies of the pulmonary system AgentsDiseasesCoalSimple coal-workers’ pneumoconiosisProgressive massive fibrosisCaplan’s syndromeSilicaSilicosisCaplan’s syndromeAsbestosAsbestosis Pleural diseasesTumorsBerylliumBerylliosisMouldy hayFarmer’s lung