NOT listed as a prematurity-associated diagnosis?

• A. Periventricular leukomalacia (PVL)
• B. Hydrocephaly
• C. Hypoxic injury
• D. Brain tumor

Answer: (D)

Prematurity lays the groundwork for certain brain injuries because the preterm brain has underdeveloped white matter and fragile blood vessels, making it especially vulnerable to injury around birth. Periventricular leukomalacia is a classic example: the white matter right next to the ventricles is particularly susceptible to hypoxic-ischemic damage in preterm infants, leading to PVL and potential motor and cognitive problems later on. Intraventricular hemorrhage from the fragile germinal matrix is another risk in preemies; when blood disrupts CSF pathways or absorption, hydrocephalus can develop. Hypoxic injury itself is more likely in the context of prematurity due to imbalances in oxygen delivery and the brain’s immature autoregulation, so it’s also considered prematurity-associated.

A brain tumor, by contrast, does not arise from the conditions of prematurity and is not considered a prematurity-associated diagnosis. It has different etiologies and can occur in children across a broad age range independently of being born preterm.