Pulmonary arterial hypertension


This patient has known idiopathic pulmonary hypertension, and her imaging shows well the typical appearances.  

Idiopathic pulmonary arterial hypertension is essentially a diagnosis of exclusion.  The differential is that of causes of secondary pulmonary arterial hypertension and includes among others:

For a more complete list, please refer to the article on causes of pulmonary arterial hypertension.

None of these were present in this patient.

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