Concomitant giant purely intradiploic cavernous haemangioma and multifocal neurotoxoplasmosis

Purely calvarial or intradiploic cavernous haemangiomas (PICHs) are rare benign tumours accounting for 0.2% of all bone tumours and 10% of benign skull tumours. They are generally small, slow-growing and asymptomatic lesions. Here the authors described an immunocompromised patient with concomitant giant intradiploic ossified globular cavernous angioma and multifocal neurotoxoplasmosis that underwent a combined approach to treat both lesions with an en-bloc resection of the right parietal intradiploic lesion and biopsy of the left occipital subcortical lesion. Indeed, it is essential to exclude the presence of metastases by making a timely differential diagnosis. En-bloc surgical resection of purely intradiploic ossified cavernous angioma is the gold standard treatment and the prognosis after a complete excision is usually excellent with rarer recurrence rate.