<prompt> Stage- II testicular teratoma is treated by-Orchidectomy RPLNDOrchidectomy ChemotherapyOrchidectomyRadiotherapy  <response>: Most common testicular tumor in prepubertal adults: Teratoma Tumor is composed of two or more embryonic germ cell layers that may be both mature and immature. Tumor is very heterogeneous with both solid and cystic components.Teratoma is divided into three subsets1. Mature: well-differentiated ectodermal, mesodermal, or endodermal tissues2. Immature: incompletely differentiated tissues3. Teratoma with areas of malignant transformation: sarcoma, squamous carcinoma, adenocarcinoma Teratomas are potentially malignantClinical Features Age range: first, second, and third decades. Mature and immature forms have metastatic potential in adults but in children are uniformly benign. The primary tumor generally presents as an enlarged testis with both solid and cystic components. The teratoma component of metastatic GCT is resistant to chemotherapy and radiotherapy.Tumor Markers AFP is raised in 20-25 