: We report an uncommon, infratentorial localization of adult H3 K27M-altered diffuse midline glioma arising in a particularly rare site (medulla oblongata). In addition to this unusual presentation, the lesion exhibited a substantial contrast enhancement and size decrease after dexamethasone, generating diagnostic dilemmas. Histology, molecular details, advanced Magnetic Resonance imaging features and differential diagnoses are here described and discussed, as well as common misconceptions about steroid-sensitive mass lesions, and practical difficulties for clinicians involved in the process of making diagnosis.

Imaging characterization of an adult H3 K27M-altered diffuse midline glioma of the medulla oblongata with a confounding steroid response / Godi, Claudia; Garofalo, Paolo; Callea, Marcella; Vezzulli, Paolo; Barbera, Maurizio; Mandelli, Carlo; Mazza, Elena; Pollo, Bianca; Terreni, Maria Rosa; Castellano, Antonella; Anzalone, Nicoletta; Falini, Andrea. - In: RADIOLOGY CASE REPORTS. - ISSN 1930-0433. - 18:3(2023), pp. 788-793. [10.1016/j.radcr.2022.10.082]

Imaging characterization of an adult H3 K27M-altered diffuse midline glioma of the medulla oblongata with a confounding steroid response

Castellano, Antonella;Anzalone, Nicoletta;Falini, Andrea
2023-01-01

Abstract

: We report an uncommon, infratentorial localization of adult H3 K27M-altered diffuse midline glioma arising in a particularly rare site (medulla oblongata). In addition to this unusual presentation, the lesion exhibited a substantial contrast enhancement and size decrease after dexamethasone, generating diagnostic dilemmas. Histology, molecular details, advanced Magnetic Resonance imaging features and differential diagnoses are here described and discussed, as well as common misconceptions about steroid-sensitive mass lesions, and practical difficulties for clinicians involved in the process of making diagnosis.
2023
Diffuse midline glioma
High-grade glioma
Magnetic resonance imaging
Medulla
Steroid response
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11768/136178
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