In Situ Thrombosis of Small Pulmonary Arteries in Pulmonary Hypertension Developing after Chemotherapy for Malignancy

Figure 3

Histopathological findings in small pulmonary arteries and pulmonary veins of case 3. (a) Almost all small pulmonary arteries have mildly thickened media and are occluded by thrombi. (b) Peripheral small pulmonary artery showing almost completely occluded by a newly formed thrombus. Most thrombi shown in small pulmonary arteries are in the process of being formed.

(a)

(b)