Spontaneous Parenchymal Haemorrhage

There are a number of causes of spontaneous parenchymal haemorrhages. These include: hypertension, vascular malformations and aneurysms, neoplasm (primary or metastatic), cerebral amyloid angiopathy, use of antiplatelet agents or anti-coagulants, blood dyscrasias and drug abuse (e.g. amphetamine and cocaine use). Parenchymal haemorrhages could also be subdivided into deep versus lobar haemorrhages, where deep haemorrhages (basal ganglia, thalamus, brainstem) are much more often caused by hypertension.