Spongiform hemangiomas, also known as spongiform vascular malformations, are well-defined vascular misshapen tumors. It consists of irregularly thick sinusoidal vascular luminae without thick blood supplying arteries or draining veins, and blood flow through these vessels is slow. Spongiform hemangiomas can occur anywhere in the central nervous system. The disease occurs in 0.4% of the population, with 18.7% of patients having multiple lesions. Symptoms: Symptoms include seizures, headaches, bleeding or compression of surrounding brain tissue, called the occupancy effect. The occupancy effect may result in progressive neurological deficits, including numbness and weakness, visual impairment, or speech impairment. About 11% of lesions are asymptomatic. Diagnosis: Magnetic resonance imaging (MRI) is the most sensitive test for identifying cavernous hemangioma lesions.MRI scans can show iron-containing heme deposits on the cavernous hemangioma itself as well as around new or old cavernous hemangiomas. These lesions are not visible on cerebral angiography. Treatment: Treatment should be considered on an individual basis. It depends on your symptoms and your specific situation. Treatment options: 1. Incidentally discovered lesions: Asymptomatic, incidentally discovered cavernous hemangiomas can be observed for a while, with multiple scans over time to determine the bleeding or growth pattern of the lesion. 2. Conditions requiring consideration for surgery (indication for surgery): Superficial lesions: Progressive neurological dysfunction Symptomatic bleeding Seizures Deep lesions with recurrent bleeding and progressive neurological deterioration 3. Stereotactic radiosurgery