Final answer:
Facial fractures should be suspected in an elderly patient who experiences swelling and hematoma under the left eye after a fall. A strong blow to the head can cause fractures around the pterion, leading to bleeding and hematoma formation. Urgent medical attention is needed to prevent further complications.
Step-by-step explanation:
Based on the symptoms described, it is important to consider the possibility of facial fractures in the elderly patient who tripped and fell on her face. A strong blow to the lateral side of the head can cause fractures around the pterion, a clinical landmark located deep to the area where the patient experienced swelling.
The pterion is closely associated with a major branch of an artery that supplies the skull and brain's covering layers. If the underlying artery is damaged, bleeding can lead to the formation of a hematoma between the brain and interior of the skull. This accumulation of blood can exert pressure on the brain and, if left untreated, may even result in death.