Which is not a feature of battered baby syndrome
**Core Concept:** Battered baby syndrome (also known as Shaken Baby Syndrome) is a severe form of child abuse characterized by a combination of head injuries, retinal hemorrhages, and subdural hematomas in infants. This condition is mainly caused by violent shaking or striking of infants.
**Why the Correct Answer is Right:** The correct answer is **D.**, which states "evidence of fracture." Battered baby syndrome typically involves non-accidental trauma to the infant, with the primary injuries being head injuries (subdural hematomas, retinal hemorrhages, and cerebral edema). Fractures are uncommon in this condition and usually occur due to direct trauma or falls, which is less likely in the context of a shaken baby syndrome.
**Why Each Wrong Option is Incorrect:**
A. **Subdural Hematoma:** Subdural hematomas are a common finding in battered baby syndrome, caused by the rapid deceleration forces during shaking leading to rupture of the bridging veins connecting the two hemispheres of the brain.
B. **Retinal Hemorrhage:** Retinal hemorrhages are also a common feature of battered baby syndrome due to the rapid acceleration and deceleration forces causing damage to the blood vessels in the retina.
C. **Intracranial Hemorrhage:** Intracranial hemorrhages can occur in battered baby syndrome due to the violent shaking, which puts excessive stress on the skull and weakens blood vessels, leading to rupture.
D. **Fractures:** As explained above, fractures are less common in battered baby syndrome and usually result from direct trauma or falls, which are less likely in the context of shaking.
**Clinical Pearl:** The presence of fractures in a child with a history of shaking is highly suspicious for non-battered cause and should prompt further investigation to rule out alternative explanations for the fractures, such as a fall from a height or abuse by another means.
**Correct Answer:** D. Fractures.