A 7-year-old with pulmonary hypertension.

Area of Science:

• Cardiology
• Pulmonology
• Pathology

Background:

• Pulmonary arterial hypertension (PAH) can stem from various causes, including rare vascular pathologies.
• Pulmonary capillary haemangiomatosis (PCH) is an uncommon condition leading to severe pulmonary hypertension, often diagnosed late.

Purpose of the Study:

• To present a pediatric case of pulmonary capillary haemangiomatosis (PCH).
• To discuss diagnostic challenges and treatment strategies for PCH.
• To highlight the clinical course and outcome of PCH.

Main Methods:

• Case report of a 7-year-old female with exertional cyanosis and pulmonary hypertension.
• Diagnostic evaluation including assessment of cardiac function, response to vasodilators, and lung biopsy.
• Treatment with interferon α-2a and doxycycline for antiangiogenic effects.

Main Results:

• The patient presented with pulmonary hypertension and pulmonary edema, suggesting vascular pathology.
• Lung biopsy confirmed pulmonary capillary haemangiomatosis (PCH).
• Initial improvement with antiangiogenic therapy was followed by disease progression and fatality.

Conclusions:

• Pulmonary capillary haemangiomatosis (PCH) is a rare but critical diagnosis in pediatric pulmonary hypertension.
• Diagnosis often requires lung biopsy and can be challenging.
• While antiangiogenic therapies show potential, PCH remains a severe condition with a poor prognosis.