A malignant germ cell neoplasm arising from the testis. It is composed of primitive epithelial cells arranged in solid, papillary, and glandular configurations. Most patients present with a testicular mass, which may be associated with pain. More than half of the patients have metastatic disease at diagnosis. The form of treatment following radical orchiectomy is stage dependent. The disease is Monarch Disease Ontology id MONDO_0006446 (testicular embryonal carcinoma). Also known as: embryonal carcinoma of testis, embryonal carcinoma of the testis, embryonal testis carcinoma, testis embryonal carcinoma.