Editing Germ cell tumor (section)

=== Nongerminomatous ===

{| class="wikitable"
|-
! Tumor
! [[ICD-O]]
! Peak Age (yr)
! [[Benign]] or [[malignant]]
! Histology
! Tumor marker
|-
| [[Embryonal carcinoma]]
| 9070/3
| 20–30
| Malignant
| Poorly differentiated, pleomorphic cells in cords, sheets, or papillary formation
| secrete hCG, [[alpha-fetoprotein|AFP]]
|-
| [[Endodermal sinus tumor]], also known as yolk sac tumor (EST, YST)
| 9071/3
| 3
| Malignant
| Poorly differentiated endothelium-like, cuboidal, or columnar cells
| 100% secrete AFP
|-
| [[Choriocarcinoma]]
| 9100/3
| 20–30
| Malignant
| Cytotrophoblast and syncytiotrophoblast without villus formation
| 100% secrete hCG
|-
| [[Teratoma]] including mature teratoma, [[dermoid cyst]], immature teratoma, teratoma with malignant transformation
| 9080/0-9080/3
| 0–3, 15–30
| Mature teratoma, dermoid cyst usually benign (but [[Watchful waiting|follow-up]] required); others usually malignant
| Very variable, but "normal" tissues are common
| Pure tumors do not secrete hCG, AFP
|-
| [[Polyembryoma]]
| 9072/3
| 15–25
| ?
| ?
| ?
|-
| [[Gonadoblastoma]]
| 9073/1
| ?
| ?
| ?
| ?
|}