A novel pathology of a mediastinal neoplasm

Abstract

Primary extragonadal malignant germ cell tumors (EMGCTs) are rare and account for only 2–5% of malignant germ cell tumors. Vascular tumors are uncommon mediastinal masses making up < 1% of all mediastinal masses. We report the case of a 20-year-old man presenting with a germ cell seminoma as well as an atypical hemangioma encapsulated in one mass within the mediastinum. This clinical report focuses on a 20-year-old man who presented with both a germ cell seminoma as well as an atypical hemangioma within one encapsulated mass, a unique case not presented before in literature to our knowledge. The histological analysis is essential in correctly diagnosing a neoplasm. Combining the unique histology of this case with the clinical and scientific knowledge of several specialties allowed the clinicians to successfully develop a treatment for this patient.

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