Cavernous angioma

-Size: few mm to few cm.

-Sub acute&chronic blood clots.

-NCCT: Focal hyperdense lesion+/- calcification.

 No edema, no mass effect.

-CECT: Mild enhancement.

-D.D.:Oligodendroglioma.Can be differentiated easly by MRI.

-MRI:

*Focal area of mixed signal intensity.

*Hypo intense rim(hemosiderin).

*Enhancement similar to CT.

*Angiography---negative findings.

A lesion hyper intense with inside black foci(pop corn) in T1&T2 with jet black border.

Why it is not a hematoma--- due to pop corn appearance of cavernous angioma.

43-year-old woman with worsening left-sided headaches. Axial T2W images demonstrate typical features of a cavernous angioma with a mixed signal core, complete haemosiderin rim, and blooming susceptibility effect.