During a robbery, a 54-year-old local Starbucks owner was hit on the head with a wooden bat and he lost consciousness. Exhibits What would you suspect is going on with this individual?
Explanation & Rationale
Rationale: A. While fractures of the anterior cranial fossa can cause frontal bone or orbital injuries, they do not typically produce clear fluid (CSF) drainage from the ear. CSF rhinorrhea is more characteristic of anterior fossa involvement, but otorrhea (ear drainage of clear fluid) points to a different site. B. Basilar skull fractures involve the base of the skull and can result in CSF leakage from the ear (otorrhea) or nose (rhinorrhea), bruising behind the ears (Battle sign), and periorbital ecchymosis (raccoon eyes). The patient’s clear fluid from the right ear, multiple contusions on the head, and altered orientation are consistent with a basilar skull fracture, likely involving the temporal bone. This type of fracture can occur from blunt trauma to the head, such as being struck with a wooden bat. C. While basilar fractures can injure cranial nerves, cranial nerve entrapment alone would not explain CSF drainage from the ear, contusions, and altered orientation. Cranial nerve deficits are usually specific neurologic deficits (e.g., facial droop, eye movement issues). D. Epidural hematomas often present with a lucid interval, followed by rapid deterioration, and are typically associated with arterial bleeding, not CSF leakage. While this patient could develop an epidural hematoma, the hallmark sign of clear fluid from the ear specifically points to a basilar skull fracture, not an epidural hematoma.Top of FormBottom of Form