title: Primary pulmonary hypertension associated with a "collagen" disorder.
mesh_terms: D002648:Child; D003095:Collagen Diseases / Q000150:complications* / Q000473:pathology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology* / Q000473:pathology; D008297:Male; D009206:Myocardium / Q000473:pathology; D011651:Pulmonary Artery / Q000473:pathology; D013583:Synovial Membrane / Q000473:pathology