pulmonary tumor thrombotic microangiopathy

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Pulmonary tumor thrombotic microangiopathy (PTTM) occurs when there are tumor cell microemboli ("non-occlusive" microscopic tumor emboli) with "occlusive" fibrointimal remodeling in small pulmonary arteries, veins and lymphatics. It is considered one of the processes of microsopic pulmonary tumor embolism. It can be a rare cause of pulmonary hypertension.

History and etymology

It was first described in 1990 by Von Herbay et al.

See also