Fig. 3

Histological findings of pulmonary vasculature at post mortem. Post mortem examination of the sections taken from both lungs revealed widespread tumour emboli in small and medium sized arterial vessels including sub-segmental branches of the pulmonary arterial tree. This finding was associated with florid intimal fibrocellular proliferation and muscular hyperplasia of the pulmonary vasculature leading to luminal narrowing and stenosis with extensive intra-luminal thrombosis. The pathological conclusion of PTTM is substantiated by the clinical history of the patient's presentation and clinical outcome of the case