Table 2

Prevalence of histopathological features found in endoluminal pulmonary thromboendarterectomy material from patients with chronic thromboembolic pulmonary hypertension (n=32), and in the pulmonary arteries of lungs excised at transplantation from patients with thromboembolic (n=7) and plexogenic pulmonary hypertension (n=31)

FeatureCTEPHPPHESES with thrombus
Values are n (%).
CTEPH, chronic thromboembolic pulmonary hypertension; ES, Eisenmenger syndrome; PPH, primary pulmonary hypertension.
Fibrocellular tissue 139 (100)9 (100)19 (100)All
Organising thrombus34 (87)00All
Recent thrombotic material33 (84.6)00All
Calcification18 (46.1)001/3
Vascular neogenesis37 (94.8)002/3
Macrophages and foam cells33 (84.6)9 (100)18 (94.7)All
Lymphocytes34 (87)9 (100)18 (94.7)All
Pultaceous material24 (61.5)00All
Cholesterol clefts24 (61.5)1 (11.1)1 (5.2)All
Cholesterol clefts in thrombus12 (30.7)002/3