There is cystic change, old hemorrhage, necrosis, and reactive gliosis in the lesion, but no epithelioid granuloma or suppuration is appreciated. For some reason, I don't feel this is an active abscess due to bacterial, fungal or protozoan infection. A chronic abscess caused by parasites (e.g., cysticercosis) should be ruled out. Though blood vessels are not very prominent or abnormal, I would try to make sure this old benign lesion is not associated with a vascular malformation (cavernous hemangioma or AVM). Other possibilities include contusion (old trauma) and hemorrhagic infarct .
There is cystic change, old hemorrhage, necrosis, and reactive gliosis in the lesion, but no epithelioid granuloma or suppuration is appreciated. For some reason, I don't feel this is an active abscess due to bacterial, fungal or protozoan infection. A chronic abscess caused by parasites (e.g., cysticercosis) should be ruled out. Though blood vessels are not very prominent or abnormal, I would try to make sure this old benign lesion is not associated with a vascular malformation (cavernous hemangioma or AVM). Other possibilities include contusion (old trauma) and hemorrhagic infarct .