ABSTRACT
We report on a two year old female patient who presented with expansion to the left side of the ramus and body of the mandibule. Imaging studies revealed a lesion with characteristics suggestive of vascular origin. Histopathological analysis determined the presence of an intraosseous Hemangioma. Embolization guided angiography of the left external carotid artery was performed followed by surveillance to monitor regression of the lesion.
Se presenta en una paciente de sexo femenino de dos años que presentó expansión del lado izquierdo de la rama y cuerpo de la mandíbula. Los estudios de imágenes revelaron una lesión con características sugerentes a un origen vascular. El análisis histopatológico determinó la presencia de un hemangioma intraóseo. Se realizó la embolización guiada por angiografía de la arteria carótida externa izquierda junto y seguimiento de control para supervisar la regresión de la lesión.
Subject(s)
Humans , Female , Child, Preschool , Hemangioma/diagnosis , Hemangioma/therapy , Mandibular Neoplasms/diagnosis , Mandibular Neoplasms/therapy , Embolization, Therapeutic , Magnetic Resonance Imaging , Tomography, X-Ray ComputedABSTRACT
BACKGROUND: Actinic cheilitis (AC) is characterized by epithelial and connective tissue alterations caused by ultraviolet sunlight overexposure known as photodamage. Fibroblasts have been linked to photodamage and tumor progression during skin carcinogenesis; however, their role in early lip carcinogenesis remains unknown. The aim of this study was to assess the density of fibroblasts in AC and normal lip (NL) samples and determine their association with markers of lip photodamage. METHODS: Fibroblasts, mast cells, p53, COX-2, and elastin were detected in NL (n = 20) and AC (n = 28) biopsies using immunohistochemistry/histochemistry. Mast cell and fibroblast density and epithelial p53 and COX-2 expression scores were then obtained. Elastosis was scored 1-4 according to elastin fiber density and tortuosity. RESULTS: Fibroblasts, mast cells, p53, COX-2, and elastosis were increased in AC as compared to NL (P < 0.001). Multivariate analysis showed an association between fibroblast and mast cell density at the papillary and reticular areas of AC and NL (P < 0.05). Papillary fibroblast density was also associated with epithelial p53 and COX-2 expression (P < 0.05). Increased fibroblast density, both papillary and reticular, was found in the high elastosis group (scores 3-4) as compared to the low elastosis group (scores 1-2) (P < 0.01). Increased reticular mast cell density was detected only in the high elastosis group (P < 0.01). CONCLUSIONS: Fibroblasts are increased in AC, and they are associated with mast cell density, epithelial p53 and COX-2 expression, and actinic elastosis. Therefore, fibroblasts may contribute to lip photodamage and could be considered useful markers of early lip carcinogenesis.
