Extra-adrenal pheochromocytomas are termed paragangliomas. Paragangliomas in the mediastinum, especially the superior mediastinum, are extremely rare. It is known that paragangliomas or pheochromocytomas occur in combination with von Hippel-Lindau syndrome. We present the case of a non-functional superior mediastinal paraganglioma in a patient with von Hippel-Lindau syndrome, without a familial...

We describe herein a rare case of a primary primitive neuroectodermal tumor (PNET) in the mediastinum of a 75-year-old man. Grossly, the tumor was located in the left upper anterior mediastinum. Transcutaneous fine-needle biopsy (TCNB) revealed small round-cell proliferation. The expression immunohistochemical analysis was confirmed the diagnosis of PNET. He was successfully treated with chemot...

malignant germ cell tumors, and it most frequently occurs in the anterior mediastinum in the chest (1). The posterior mediastinum is a rare site of origin for seminoma, and prominent cystic change of a posterior mediastinal seminoma has not been previously described. The present report describes the CT, MR and F-FDG PET/CT findings of a case of a primary posterior mediastinal seminoma that was ...