Cerebellopontine angle hemangioblastoma diagnosis
A Cerebellopontine angle hemangioblastoma looks like an extra-axial lesion, such as a vestibular schwannoma (VS) or a cerebellopontine angle meningioma, on a radiological image. Seventy to 75% of HBMs have cystic or multi-cystic forms.
The characteristics of solid variants of HBMs are similar to those of intracranial arteriovenous malformations (AVMs).
Although it is rare, cerebellopontine angle hemangioblastoma should be one of the differential diagnoses when dealing with solid cerebellopontine angle lesions with high contrast enhancement and heterogeneity on T2-weighted MRI. Analysis of the radiological characteristics allows a greater chance of confirmation and is one of the main tools for surgical planning 1).
A case of hemangioblastoma of the CPA evaluated by pseudocontinuous arterial spin labeling (pCASL). The high rate of tumor blood flow determined using pCASL provided additional useful information for the differential diagnosis of the CPA tumors in this patient 2).