Reversible "hemiparkinsonism" following surgery for a lateral ventricle liponeurocytoma in a 24-year old student

Histopathological examination of the tumor revealed a highly cellular neoplasm composed of small monomorphic neuronal cells with oval- to carrot-shaped hyperchromatic nuclei surrounded by scanty cytoplasm along with focal areas of cells with distinct cellular outlines, a large vacuole, and an eccentrically displaced or compressed nucleus resembling mature adipose tissue. The immediate resolution observed in our patient's hemiparkinsonism features after surgical resection supports this notion that local compression due to edema or mass effect could lead to a functional disorder in the basal ganglia, producing reversible contralateral Parkinsonism. In their article, the diagnosis of liponeurocytoma was also not considered preoperatively. [...]a thorough histological evaluation of the tissue is crucial for establishing an accurate diagnosis. [...]liponeurocytoma of the lateral ventricle can affect young individuals and can present with hemiparkinsonism.