Teratoma classification: Difference between revisions
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GCTs arise from primordial germ cells, which migrate during embryogenesis from the yolk sac through the mesentery to the gonads.[4,5] Childhood extracranial GCTs can be divided into the following two types: | |||
Gonadal. | |||
Extragonadal. | |||
Most childhood extragonadal GCTs arise in midline sites (i.e., sacrococcygeal, mediastinal, and retroperitoneal); the midline location may represent aberrant embryonic migration of the primordial germ cells. | |||
Childhood extracranial GCTs are broadly classified as the following: | |||
Mature teratomas. | |||
Immature teratomas. | |||
Malignant GCTs. | |||
GCTs comprise a variety of histologic diagnoses and can also be divided into the following histologic types: | |||
Germinoma. | |||
Germinoma. | |||
Dysgerminoma (ovary). | |||
Seminoma (testis). | |||
Nongerminoma. | |||
Teratoma (mature and immature). | |||
Yolk sac tumor (endodermal sinus tumor). | |||
Choriocarcinoma. | |||
Embryonal carcinoma. | |||
Gonadoblastoma. | |||
Mixed GCT (contains more than one of the histologies above). | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Congenital disorders]] | [[Category:Congenital disorders]] |
Revision as of 18:09, 19 August 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Monalisa Dmello, M.B,B.S., M.D. [2]
GCTs arise from primordial germ cells, which migrate during embryogenesis from the yolk sac through the mesentery to the gonads.[4,5] Childhood extracranial GCTs can be divided into the following two types: Gonadal. Extragonadal. Most childhood extragonadal GCTs arise in midline sites (i.e., sacrococcygeal, mediastinal, and retroperitoneal); the midline location may represent aberrant embryonic migration of the primordial germ cells. Childhood extracranial GCTs are broadly classified as the following: Mature teratomas. Immature teratomas. Malignant GCTs. GCTs comprise a variety of histologic diagnoses and can also be divided into the following histologic types: Germinoma. Germinoma. Dysgerminoma (ovary). Seminoma (testis). Nongerminoma. Teratoma (mature and immature). Yolk sac tumor (endodermal sinus tumor). Choriocarcinoma. Embryonal carcinoma. Gonadoblastoma. Mixed GCT (contains more than one of the histologies above).