This case illustrates a typical incident that can happen with inpatients, especially among the elderly, and that is usually targeted by numerous institutional prevention campaigns. Unfortunately, even with all the prevention measures, it is not uncommon to receive requests for CT scans similar to this case. 

First CT scan demonstrated a right-sided subdural tentorial hematoma, hematomas like this one may sometimes be really thin and just identified by a subtle hyperattention of the tentorium. The follow-up scan performed one day later has demonstrated progression over the hematoma, but no further mass effect or other complications.