Primary extragonadal seminoma is relatively rare, which belongs to primary extragonadal germ dell tumor. Up to date, only a small number of literatures have been reported about its Computed Tomography (CT) features. In the present study, we reported 9 cases of primary extragonadal seminoma proved by histopathology. This report aims to demonstrate the CT features of infrequently occurred primary...

The rare 'burned out' phenomenon in germ cell tumors is known as the presence of an extragonadal germ cell tumor without traces of neoplasm in the testis. This condition is different and less common from the primary extragonadal germ cell malignancies. These malignancies are treated surgically with or without adjuvant chemotherapy or radiotherapy and their prognosis is better than that of other...

Extragonadal teratomas are rare and account for only approximately 0.4% of all teratomas. The pathogenesis extragonadal is controversial poorly understood. We report a case an ovarian mature teratoma, which was discovered during autoamputation into omental teratoma.

Primary germ cell tumors of extragonadal origin are rare and exact incidence of this type cancer is unknown. They have been estimated to represent 3-5% of all adult germ cell malignancies (1). The origin of primary extragonadal germ cell tumors (EGGCT) is still a matter of debate. According to widely accepted theory, during embryogenesis, germ cells are misplaced anywhere at the midline. The me...

BACKGROUND The origin of extragonadal retroperitoneal germ cell tumors remains controversial. Whether they develop primarily in the retroperitoneum or whether they are metastases of a primary testicular tumor has long been debated. PATIENTS AND METHODS We retrospectively analyzed 26 patients treated as having primary extragonadal retroperitoneal germ cell tumors based upon the findings of tes...

BACKGROUND Between 2% and 5% of malignant germ-cell tumors in men arise at extragonadal sites. Of extragonadal germ cell tumors, testicular carcinoma in situ (CIS) are present in 31-42% of cases, and CIS are reported to have low sensitivity to chemotherapy in spite of the various morphology and to have a high likelihood of developing into testicular tumors. A testicular biopsy may thus be highl...

Two patients are reported in whom an initial diagnosis of disseminated non small cell bronchogenic carcinoma was subsequently changed into a final diagnosis of extragonadal germ cell tumour. The clinical importance of the differential diagnosis between these two malignancies is highlighted and the management of extragonadal germ cell tumours is discussed.

Extragonadal yolk sac tumor (YST) is a relatively rare entity. We describe here the case of an extragonadal YST that occurred in the pancreas with hepatic metastasis in an adult woman. The contrast enhanced CT images of the abdomen revealed a heterogeneous, solitary mass occupying the pancreatic neck and body with slightly inhomogeneous contrast enhancement. Two low-density lesions in the liver...

We provide updated estimates of survival, incidence, complete prevalence, and proportion cured for patients with testicular/paratesticular and extragonadal germ cell cancers in Europe, grouped according to the new list of cancer types developed by RARECARE. We collected data, archived in European cancer registries, with vital status information available to 31st December 2003. We analysed 26,00...