We often encounter injuries caused by pencils or colored pencils in toddlers and young children, but subsequent segmental tumor formation is rare. Here we report the case of a 4-year-old boy who had been stabbed under his left eyebrow with a red pencil. Colored pencil-core granuloma, a foreign body granuloma arising from an injury with a colored pencil, was diagnosed on the basis of intraoperative and histopathologic findings. Because of the severe tissue damage that the colorant causes, this type of tumor grows rapidly within a few days and may be accompanied by resorption of the skull if it occurs on the head or face.
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