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Invasive pulmonary haemangiomatosis
British Journal of Diseases of the Chest
|July 1, 1985
Summary
Invasive pulmonary haemangiomatosis is a rare vascular lung disease causing pulmonary hypertension. This condition infiltrates lung vessels, leading to respiratory insufficiency and potential hemothorax.
Area of Science:
- Pulmonary Medicine
- Vascular Pathology
Background:
- Invasive pulmonary haemangiomatosis (IPH) is a recently described disease characterized by thin-walled vessel infiltration.
- The obscure origin of these angiomatous vessels leads to infiltration of pulmonary arteries, veins, and venules.
Observation:
- Vessel infiltration causes occlusion of pulmonary veins and venules, triggering reactive intimal fibrosis.
- This process results in pulmonary capillary dilatation, intra-alveolar siderophages, alveolar wall fibrosis, and osseous nodules.
Findings:
- IPH leads to secondary pulmonary veno-occlusive disease, a cause of hypertensive pulmonary vascular disease.
- It is identified as the fourth cause of 'unexplained pulmonary hypertension', alongside other conditions.
Implications:
- Clinical presentation includes recurrent hemoptysis, respiratory insufficiency, and diffuse chest radiograph infiltrates.
- Recognition of these features is crucial for accurate diagnosis of IPH.