A 10-month-old baby is brought to the ED because of irritability and vomiting. His mother states that he has not been well for the past 5 days. She relates that she fell asleep 5 days ago with the baby on the bed with her and that she awakened after hearing a thump on the floor. The baby cried right away. She brought him to the ED the next day because he vomited once and she became worried. After waiting for 3 hours, she left with the baby without being seen by a physician. The next day, the mom brought the baby to the primary care doctor who reassured her that the baby looked fine. Over the next 2 days he became progressively irritable and then started to vomit repeatedly. In the ED, a CT scan was obtained.
A CT scan shows left- and right-sided fluid collections in subdural areas of the frontal lobe region of the brain demonstrated by lighter and darker colors. The left fluid collection measures 5mm and the right measures 2.24 mm.