title: Nasal glial heterotopia or congenital hemangioma? A case report.
abstract: Nasal glial heterotopia (NGH) is a rare benign tumor of the median line. We describe the case of a child presenting a lateral nasal mass. The characteristics of the prenatal ultrasound and the postnatal clinical examination argued in favor of a congenital hemangioma (CH). The MRI performed at 6 weeks of life suggested glial heterotopia. This diagnosis was confirmed by the pathological analysis. Congenital hemangiomas and nasal glial heterotopies have similar clinical presentations. Prenatal ultrasound diagnosis between NGH and CH is difficult. Fetal MRI is not yet highly specific for these two lesions, but it can eliminate an intracerebral connection in cases of NGH. Postnatal exams are more specific. Flow on the Doppler exam is rapid for CH and slow for NGH. On MRI, these two lesions appear as a hypersignal on T2-weighted sequences, but less intense for NGH than for CH. Distinguishing between NGH and CH can be difficult. This does not have a direct incidence on treatment because it is surgical in both cases.
authors.affiliation: Grenoble University Hospital, Department of Maxillo-facial Surgery, Avenue Maquis du Grésivaudan, 38700 La Tronche, France. Electronic address: Rodolphe.lartizien@gmail.com.
authors.forename: R
authors.initials: R
authors.lastname: Lartizien
authors.affiliation: Grenoble University Hospital, Department of Pediatric Radiology, Avenue Maquis du Grésivaudan, 38700 La Tronche, France.
authors.forename: C
authors.initials: C
authors.lastname: Durand
authors.affiliation: Grenoble University Hospital, Department of Vascular Medicine, Avenue Maquis du Grésivaudan, 38700 La Tronche, France.
authors.forename: S
authors.initials: S
authors.lastname: Blaise
authors.affiliation: Grenoble University Hospital, Department of Maxillo-facial Surgery, Avenue Maquis du Grésivaudan, 38700 La Tronche, France.
authors.forename: B
authors.initials: B
authors.lastname: Morand
mesh_terms: D000328:Adult; D002828:Choristoma / Q000151:congenital / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006391:Hemangioma / Q000151:congenital / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging / Q000379:methods; D009457:Neuroglia; D009668:Nose Diseases / Q000151:congenital / Q000175:diagnosis* / Q000601:surgery; D009669:Nose Neoplasms / Q000151:congenital / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods; D016216:Ultrasonography, Prenatal
keywords: Hemangioma; MRI; Nasal glial heterotopia; Prenatal diagnosis; Ultrasound