A yolk sac tumor is a malignant germ cell tumor that can arise in the ovaries, testes, or other sites and often affects younger patients.
Symptoms depend on where the tumour is. They may include a painless testicular lump, lower abdominal swelling or pain, a pelvic mass, changes in periods, or symptoms from a mass in the chest or abdomen.
Imaging helps show where the tumour is, how large it is, and whether it has spread to nearby structures or other parts of the body.
Ultrasound, CT, and MRI can help show the mass and assess its extent, while imaging is also important for treatment follow-up.
Management usually involves specialist cancer care, often including surgery and chemotherapy depending on the site and stage.
This entry explains the condition. The next step is having a radiologist interpret your specific scan, not a general definition.
