Also found in: Wikipedia.
linear skull fracture in a young child which increases in size, usually as the result of an associated dural tear and arachnoid cyst formation within the fracture line.
Etymology: AS, growan + L, fractura, to break
a fracture, usually linear, in which consecutive radiographic images show a gradual separation of the fracture edges over time. The separation is often caused by the pressure of soft tissues, as when arachnoid tissues expand through the edges of a skull fracture.