Pulmonary tumor thrombotic microangiopathy (PTTM) is an under-recognized cause of pulmonary hypertension and fulminant right ventricle failure. It is associated with a high mortality due to delay in diagnosis. We present two cases of PTTM, both diagnosed postmortem, highlighting the importance of timely identification and initiation of treatment for this near-fatal condition.
Keywords: cancer; metastasis; pulmonary hypertension; right heart catheterization; right ventricle.
© 2023 The Authors. Pulmonary Circulation published by John Wiley & Sons Ltd on behalf of Pulmonary Vascular Research Institute.