Brain stem cystic astrocytoma presenting with ?pure? parkinsonism

Hemiparkinsonism Secondary to an Infiltrative Astrocytoma

“…However, we found increasing prevalence of intrinsic tumors associated with tumoral parkinsonism in the past 10 years (summarized in the Table 1). 9,[12][13][14][15][16][17][18][19][20][21][22] Five patients were diagnosed with low-grade gliomas based either on histopathologic or radiologic findings. 9,[13][14][15] The disagreement between us might attribute to the development of MRI that shows higher resolution particularly in detecting infiltrative glioma in the brain.…”

“…A pontomesencephalic location and bilateral basal ganglia involvement made tumor resection more difficult. 9,13,14 However, a good prognosis was generally achieved by surgical resection or levodopa therapy only in patients with low-grade gliomas.…”

Levodopa‐Responsive Hemiparkinsonism Secondary to Cystic Expansion from a Coiled Cerebral Aneurysm

“…Aneurysms involving the middle cerebral artery, vertebral artery, or posterior cerebral arteries can cause secondary parkinsonism, but benefit from optimized medical therapy remains unknown. Structural lesions that impair the nigrostriatal pathway rarely produce dopa‐responsive parkinsonism but more commonly this type of parkinsonism has little, if any, response to levodopa . Here, we report a case of levodopa‐responsive hemiparkinsonism resulting from midbrain compression after expansion of a coiled aneurysm with perianeurysmal cyst formation.…”

Headache and Tremor: Co-occurrences and Possible Associations

“…Although brain tumors are a rare cause of hemiparkinsonism, they have been reported in astrocytoma,43,44 meningeoma,45 hemangiopericytomas,46 oligodendroglioma,47 and glioblastoma 48. Other space-occupying lesions, such as cavernomas, can also cause hemiparkinsonism 49…”