It is estimated that the worldwide incidence rate for<unk>  lies around 9% to 17%, based on the region of diagnosis. However, the baseline incidence rate of<unk>  were found to increase with improvements to brain imaging technology. Approximately 5 - 11% of<unk>  were found to be deadly at 30 days, and 14 - 23% were found to be deadly at three months. More cases of<unk>  were found in adults, compared to children. 67% to 80% of all cancer patients were found to develop<unk> , as of 2012. Lung cancer, breast cancer and melanoma patients were found to be at the highest risk of developing<unk> . However, recent trends in<unk>  epidemiology have shown an increase in incidence for patients with renal, colorectal or ovarian cancers.<unk>  are most commonly diagnosed within multiple intracranial areas within the context of extracranial diseases. Both population studies and autopsy studies have historically been used to calculate the incidence of<unk> . However, many researchers have stated that population studies may express inaccurate data for<unk> , given that surgeons have, in the past, been hesitant to take in patients with the condition. As a result, population studies regarding<unk>  have historically been inaccurate and incomplete. Recent advances in systemic treatments of<unk> , such as radiosurgery, whole-brain radiotherapy and surgical resection has led to an increase in median survival rate of<unk>  patients.
Brain metastasis
Brain abscess
Leptomeningeal cancer
Central nervous system cavernous hemangioma
Coma
Brainstem glioma
Subdural empyema
Brain tumor