Somatic PIK3CA Activating Mutation in a Plexiform Lesion of a Patient With HHT and PAH

Puntos clave

• This research aims to explore the role of somatic mutations in the formation of plexiform lesions in patients with pulmonary arterial hypertension (PAH) and hereditary hemorrhagic telangiectasia (HHT).
• Case analysis of a patient with combined PAH and HHT.
• Examination of somatic mutations in the lesion.
• Investigation of endothelial cell behavior in the plexiform lesion.
• Identification of a somatic PIK3CA activating mutation in the plexiform lesion.
• Evidence that somatic mutations contribute to endothelial cell proliferation.
• Demonstration of a potential linkage between mutation presence and lesion development.