Cerebral cavernous venous malformation (Zabramski type II)
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Small, about 4 mm left pontine lesion centrally T2 hypointense, with a thin hyperintense rim. Marked SWI blooming, and no pathological contrast enhancement. Findings are in line with a Zabramski type II cavernous malformation.
Other findings: small right nasopharyngeal Tornwaldt cyst and thickened mucosa of the right maxillary sinus.
T2 and SWI key images.
SWI is the most sensitive sequence for the detection of small cavernous malformation.