Related Experiment Videos
Pulmonary vascular changes in scleroderma
Abstract:
To determine the incidence and significance of pulmonary vascular changes in scleroderma, all necropsy reports of patients with scleroderma who died at the Massachusetts General Hospital were analyzed and correlated with clinical data. The records of 30 such patients were available. Fourteen had moderate or marked abnormalities in the pulmonary arterial tree. Nine of these 14 patients had predominantly respiratory symptoms. The arterial changes consisted pathologically of intimal and medial hyperplasia affecting pulmonary arteries of all sizes. Of the eight patients with the most severe pathologic changes in the pulmonary arteries, five had slight or no interstitial fibrosis. Three of these five patients had rapidly progressive respiratory failure and severe pulmonary hypertension leading to death. Such cases form a distinct clinicopathologic entity of malignant pulmonary hypertension in scleroderma, comparable to the better recognized entity of malignant renal hypertension in scleroderma.
Insights
Pulmonary vascular changes, including intimal and medial hyperplasia, are significant in scleroderma patients. Some cases present as malignant pulmonary hypertension, a distinct clinicopathologic entity.
Area of Science:
- Cardiovascular Pathology
- Pulmonary Hypertension
- Scleroderma Research
Background:
- Scleroderma (systemic sclerosis) is a complex autoimmune disease.
- Pulmonary vascular complications are a known, yet not fully understood, aspect of scleroderma.
- Assessing the incidence and pathological significance of pulmonary vascular changes is crucial.
Observation:
- A necropsy study analyzed 30 scleroderma patient reports.
- Fourteen patients exhibited moderate to marked pulmonary arterial abnormalities.
- Nine of these patients presented with predominant respiratory symptoms.
Findings:
- Pathological analysis revealed intimal and medial hyperplasia in pulmonary arteries of all sizes.
- Severe arterial changes were observed in eight patients, five with minimal interstitial fibrosis.
- Three patients with severe changes experienced rapidly progressive respiratory failure and fatal pulmonary hypertension.
Implications:
- These findings identify a distinct clinicopathologic entity: malignant pulmonary hypertension in scleroderma.
- This entity is comparable to malignant renal hypertension in scleroderma.
- Understanding these vascular changes is vital for diagnosing and managing scleroderma-related cardiopulmonary disease.