外傷性脳梁出血のCT

Computerized Tomography of the Traumatic Hematoma in the Corpus Callosum:Report of two cases

I．はじめに

　重症の頭部外傷において脳梁に出血を伴う症例は少なくないが，脳血管撮影上，脳梁出血の正確な診断は困難であるため，そのほとんどは剖検報告であった^1-4）．CTの導入により頭蓋内出血の診断が容易となったにもかかわらず，脳梁出血のCT所見に関する報告はいまだ数少ない^5,6）．

　今回われわれは，脳梁出血を認めた重症頭部外傷2例を経験したので，そのCTおよび手術所見とともに発生機序について考察を加え報告する．

The value of the computerized tomography (CT) in thediagnosis of the intracerebral hematoma has been welldocumented. However, there is little report about the CTfindings of the hematoma of the corpus callosum. Thisreport presents two cases of the traumatic hematoma in thecorpus callosum and is discussed about their CT findings.

Two patients, 52 year-old male and 40 year-old male,respectively, are the cases of blunt mechanical head traumawhich were accompanied neither by skull fracture nor byscalp injury.