Monarch Disease Ontology id MONDO_0009934 (alveolar capillary dysplasia with misalignment of pulmonary veins) is a rare and fatal developmental lung disease characterized by respiratory distress in neonates due to refractory hypoxemia and severe pulmonary arterial hypertension. Also known as: ACDMPV, alveolar capillary dysplasia, alveolar capillary dysplasia with misalignment of pulmonary vessels, congenital alveolar capillary dysplasia, congenital alveolar capillary dysplasia with misalignment of pulmonary veins, fetal circulation, foetal circulation.