title: A Gray-purple Mass on the Floor of the Mouth: Gigantic Mucogingival Pyogenic Granuloma in a Teenage Patient.
abstract: Pyogenic granuloma is defined as a benign neoplasm of vascular phenotype. This case describes the clinical and histopathological features of a gigantic mucogingival pyogenic granuloma, in a 14-year-old healthy black boy. This exophytic gray-purple mass, related to a toothpick injury, had more than twelve-month evolution on the anterior mandible involving lingual area besides to the floor of the mouth pressing the right salivary duct. Conservative excision was performed, followed by uncomplicated healing with no recurrence in two years. The histopathological examination reported a pyogenic granuloma (lobular capillary haemangioma). The authors provide a discussion of the presurgical differential diagnosis of the lesion. This case report presents an extremely uncommon location of a gigantic pyogenic granuloma, involving mucogingival complex and affecting the salivary outflow. This clinical manuscript may shed light on the controversies about possible mechanisms inducing oral pyogenic granuloma.
authors.affiliation: Servei d'Odontopediatria, Hospital Universitari Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Lluís
authors.initials: L
authors.lastname: Brunet-LLobet
authors.affiliation: Departament d'Odontostomatologia, Facultat d'Odontologia, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Jaume
authors.initials: J
authors.lastname: Miranda-Rius
authors.affiliation: Departament d'Odontostomatologia, Facultat d'Odontologia, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Eduard
authors.initials: E
authors.lastname: Lahor-Soler
authors.affiliation: Dental & Oral Department, Soweto General Hospital, Arusha, United Republic of Tanzania.
authors.forename: Ombeni
authors.initials: O
authors.lastname: Mrina
authors.affiliation: Servei d'Anatomia Patològica, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Alfons
authors.initials: A
authors.lastname: Nadal
keywords: Inflammatory gingival hyperplasia; lobular capillary haemangioma; mucogingival complex; pyogenic granuloma.