Massive mediastinal seminoma post-orchidectomy--late relapse with skip-metastases or new primary?

Scandinavian journal of urology and nephrology

PubMedID: 11771873

Brown RS, Hayne D, Burcombe RJ, Harbin LJ, Coulter CA. Massive mediastinal seminoma post-orchidectomy--late relapse with skip-metastases or new primary?. Scand J Urol Nephrol. 2001;35(5):422-4.
A case of a massive, biopsy-proven, advanced seminoma in the mediastinum 12 years after orchidectomy for a malignant right-sided testicular tumour of unknown histology is presented. The highly unusual nature of this presentation is discussed and may represent either late relapse from skip-metastases or metachronous gonadal and extragonadal tumour development. Immunohistochemical staining was unable to distinguish the site of origin of the lesion.