teratocarcinoma

https://doi.org/10.1351/goldbook.11285

Malignant teratoma, occurring most often in the testis.

Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 811 (https://doi.org/10.1515/pac-2015-1202)