<unk>  is a phenomenon wherein intense intracranial pressure disfigures the internal surface of the<unk> . The name comes from the fact that the inner<unk>  has the appearance of having been<unk>  with a ball-peen hammer, such as is often used by<unk> smiths. The condition is most common in children with hydrocephalus and is due to abnormal collagen development and ossification.
Copper beaten skull
Perryville Tree engravings
Hutchinson's teeth
Omphalolith
Leonine facies
Smoker's face
Elfin facies
Paul of Aegina