Late CT manifestations in spontaneous lobar hematoma

Purpose: The purpose of this work was to determine the late CT manifestations of spontaneous lobar hematoma. Method: Serial CT studies were performed in 75 cases. The initial study was done during the acute stage of stroke, and the subsequent one was performed at least 6 months later. Results: There were 20 cases (27%) with no trace of previous hemorrhage, 14 (19%) with a slit cavity, 11 (15%) with a small round cavity, 20 (27%) with pseudoinfarct, 8 (11%) with ventricular deformity but no residual cavity, and 2 (3%) with only calcification at the site of the hemorrhage. Conclusion: Our data show that the typical residual slit was relatively uncommon in lobar hematomas and that, depending on their size, hematomas would disappear, reduce to a small cavity, or form a pseudoinfarct.