Gonadal and extragonadal yolk sac carcinomas. A clinicopathologic study of 14 cases
نویسندگان
چکیده
منابع مشابه
Primary Extragonadal Retroperitoneal Pure Yolk Sac Tumor
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...
متن کاملExperience with the treatment of testicular yolk sac tumor in children: a report of 14 cases.
OBJECTIVE This paper discusses the optimal treatment for testicular yolk sac tumor at stage I in children. PATIENTS AND METHODS Fourteen children with testicular yolk sac tumor (including 10 cases of stage I and 4 cases of stage II) underwent high ligation of internal spermatic cord vein and orchiectomy. Among these, seven cases of stage I were below 1 year of age. Retroperitoneal lymph node ...
متن کاملExtragonadal yolk sac tumor outside of the midline of the body: a case report of a child with a yolk sac tumor of the pontocerebellar angle.
Yolk sac tumor is a rare germ cell neoplasm occurring mainly in the gonads. Extragonadal yolk sac tumor is a very rare malignancy; its main distribution is along the midline of the body at three principal sites: mediastinum, central nervous system and retroperitoneum. Most yolk sac tumors are diagnosed between seven months and three years of age. We report a case of primary yolk sac tumor in a ...
متن کاملTesticular seminoma after the complete remission of extragonadal yolk sac tumor : a case report
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...
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Laryngeal neuroendocrine carcinomas (LNECs) are rare and highly heterogeneous which present a wide spectrum of pathological and clinical manifestations. Fourteen patients with histologically demonstrated LNEC were collected and analyzed retrospectively. The 14 cases were classified into 3 subtypes: typical carcinoid in 2, atypical carcinoid in 5, and small cell neuroendocrine carcinoma in 7. Th...
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ژورنال
عنوان ژورنال: Cancer
سال: 1976
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(197602)37:2<812::aid-cncr2820370229>3.0.co;2-j