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Pulmonary veno-occlusive disease in siblings: case reports and morphometric study
Human Pathology
|October 1, 1982
Summary
Two siblings rapidly succumbed to severe veno-occlusive disease, characterized by pulmonary venous occlusion. Autopsy revealed significant vascular changes, highlighting the disease
Area of Science:
- Pulmonary Medicine
- Pathology
- Vascular Biology
Background:
- Veno-occlusive disease (VOD) is a rare but severe condition affecting pulmonary vasculature.
- Early diagnosis and understanding of VOD pathogenesis are critical for patient outcomes.
Observation:
- Two pediatric cases of fatal veno-occlusive disease (VOD) in siblings are presented.
- Both patients exhibited rapid disease progression, starting with exertional dyspnea.
- Radiographic findings included diffuse opacities and Kerley lines, indicative of pulmonary congestion.
Findings:
- Autopsies confirmed severe VOD with organized thrombi occluding pulmonary veins.
- Microscopic morphometry revealed medial hypertrophy in pulmonary arteries and a striking reduction in patent veins.
- Arterial filling was extensive, but venous filling was minimal, suggesting venous obstruction.
Implications:
- These cases underscore the aggressive nature of VOD in young individuals.
- Findings suggest a primary venous pathology with secondary arterial changes.
- Further research into the pathogenetic mechanisms of pediatric VOD is warranted.