Giant Posterior Mediastinal Neuroblastoma with Anterior Mediastinal Extension in an Adolescent: A Case Report

Authors

Mehdi Salmane, Alia Yassine Kassab, Lina Lasri, Lina Belkouchi, Siham El Haddad, Nazik Allali, Latifa Chat

Journal Information

Journal: Medpeer Publisher

ISSN: 3066-2737

Volume: 3

Issue: 6

Date of Publication: 2026/06/03

DOI: 10.70780/medpeer.000QGT4

Abstract

Neuroblastoma is the most common extracranial solid malignancy of childhood but is uncommon in adolescents. We report the case of a 14-year-old boy presenting with progressive dyspnea and chronic dorsal pain. Thoracic MRI revealed a giant right-sided mediastinal mass centered in the posterior mediastinum with extension into the anterior mediastinum. The lesion demonstrated heterogeneous signal intensity with necrotic components and measured 106 × 66 × 80 mm. Imaging findings were highly suggestive of neuroblastoma. This case highlights an unusual presentation of thoracic neuroblastoma in an adolescent and emphasizes the role of MRI in lesion characterization and assessment of local extension.

Keywords

Neuroblastoma, Posterior mediastinum, Mediastinal mass, Adolescent, Pediatric oncology.