Which germ cell tumor often presents as a large, heterogeneous mass with calcifications and cysts?

Which germ cell tumor often presents as a large, heterogeneous mass with calcifications and cysts?

• A. Yolk Sac Tumor
• B. Embryonal Cell Carcinoma
• C. Choriocarcinoma
• D. Teratoma

Answer: (D)

Teratoma often presents as a large, heterogeneous germ cell tumor because it can contain a mix of tissue types from multiple germ layers, such as bone or teeth (calcifications) and cystic, sebaceous, or fatty components. This combination creates a mass with both solid and cystic areas on ultrasound, and the calcifications appear as bright echogenic foci. The presence of fat and hair can contribute to complex, heterogeneous imaging and may produce fat-fluid levels on other modalities. Other germ cell tumors tend to be more uniformly solid or highly vascular and do not characteristically show the combination of calcifications with cystic components as teratomas do. Therefore, this imaging pattern most strongly points to a teratoma.

Teratoma often presents as a large, heterogeneous germ cell tumor because it can contain a mix of tissue types from multiple germ layers, such as bone or teeth (calcifications) and cystic, sebaceous, or fatty components. This combination creates a mass with both solid and cystic areas on ultrasound, and the calcifications appear as bright echogenic foci. The presence of fat and hair can contribute to complex, heterogeneous imaging and may produce fat-fluid levels on other modalities. Other germ cell tumors tend to be more uniformly solid or highly vascular and do not characteristically show the combination of calcifications with cystic components as teratomas do. Therefore, this imaging pattern most strongly points to a teratoma.