title: Colored pencil-core granuloma on the forehead.
abstract: 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.
authors.affiliation: Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Shido
authors.forename: Ikkei
authors.initials: I
authors.lastname: Tamada
mesh_terms: D001707:Biopsy, Needle; D002675:Child, Preschool; D004396:Coloring Agents / Q000032:analysis; D005500:Follow-Up Studies; D005546:Forehead / Q000293:injuries*; D005547:Foreign Bodies / Q000150:complications*; D015745:Granuloma, Foreign-Body / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D018570:Risk Assessment; D014950:Wounds, Penetrating / Q000150:complications* / Q000473:pathology
chemical_list: D004396:Coloring Agents