Cranial bone deformity after forehead tissue expansion.

The expanded forehead flap is frequently used for nasal reconstruction. When expanding the forehead tissue, the underlying cranial bones are compressed by the inserted expander. Many effects of tissue expansion on the bone have been reported including bone remolding, erosion, displacement, and so forth. In this work, we report a peculiar patient of cranial bone deformity after forehead tissue expansion, which demanded a surgical revision.