title: Computed tomography in intracranial supratentorial osteochondroma.
abstract: A case of a huge intracranial frontoparietal osteochondroma in a 20-year-old man is reported. The presenting symptoms were headache, vomiting, and blurred vision. Apart from papilledema, no other abnormal neurological signs were present. A specific preoperative diagnosis could not be reached from the information provided by plain skull films, angiography, and radionuclide scan. The findings on computed tomography were those of a high density mass interspersed with small foci of lower densities, producing a honeycomb appearance, and surrounded by deposits of nodular calcification. The postcontrast scan showed a moderate degree of enhancement with preservation of the precontrast honeycomb pattern. These particular features may enable a correct preoperative histological diagnosis to be offered with a high degree of probability.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D002812:Chondroma / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D013667:Technetium; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed
chemical_list: D013667:Technetium