title: Primary parenchymal cerebral cystic haemangiopericytoma: a 5-year follow up of disease progression.
abstract: Haemangiopericytoma (HPC) is a rare tumour of the central nervous system. Previously, HPCs were thought to originate from meninges and ventricular walls. Currently, they are accepted as distinctive mesenchymal neoplasms unrelated to meningiomas. Imaging appearances, clinical progression and haemorrhage into a cystic tumour is documented in an 18-year-old man where the final diagnosis, with histopathological verification, proved to be a cystic HPC. This interesting and illustrative case is discussed with the relevant literature.
authors.affiliation: Department of Neurosurgery, Karadeniz Technical University Medical School, Trabzon, Turkey. k_kuzeyli@hotmail.com
authors.forename: Kayhan
authors.initials: K
authors.lastname: Kuzeyli
authors.forename: Ertuğrul
authors.initials: E
authors.lastname: Cakir
authors.forename: Gokalp
authors.initials: G
authors.lastname: Karaarslan
authors.forename: Haydar
authors.initials: H
authors.lastname: Usul
authors.forename: Abdülkadir
authors.initials: A
authors.lastname: Reis
authors.forename: Süleyman
authors.initials: S
authors.lastname: Baykal
authors.forename: Hasan
authors.initials: H
authors.lastname: Dinç
authors.forename: Ahmet
authors.initials: A
authors.lastname: Sari
mesh_terms: D000293:Adolescent; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003560:Cysts / Q000000981:diagnostic imaging; D018450:Disease Progression; D005500:Follow-Up Studies; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011877:Radionuclide Imaging