Plasmacytoma of the trachea: a surprising diagnosis

Radiol Bras. 2017 Jan/Fev;50(1):62–68 66 http://dx.doi.org/10.1590/0100-3984.2015.0186 the arterial and venous systems, without intervening capillary beds, account for less than 10% of all cerebral vascular malformations. The most common place of occurrence is the transverse sinus, and there have been no reports of bilateral arterial supply. The two principal forms of presentation are hemorrhagic and non-hemorrhagic, both typically occurring as a consequence of intracranial venous hypertension, which appears as the best predictor of poor prognosis. Cerebral angiography continues to be the gold standard for the diagnosis of DAVF, in which the nidus represents the arteriovenous shunt itself and collateral vessels develop in order to drain the venous congestion. Injury due to venous congestion is an example of a severe non-hemorrhagic manifestation, which can be prevented through the early diagnosis of DAVF, the treatment of choice being endovascular therapy, with the objective of interrupting the arterial supply to the venous system.