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Macmillan and Cancerbackup merged in 2008. Together we provide free, high quality information for people affected by cancer through our publications, website and phone service. Find out more|.
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Testicular cancers are also called germ cell tumours (GCT). In men germ cells produce sperm and as a result these tumours usually develop in the testicles.
In this section we use the term testicular cancer for all types of testicular tumours.
After your operation to remove the testicle| the tissue is examined under the microscope to find out the type of testicular cancer you have.
There are two main types: seminomas and non-seminomatous germ cell tumours (NSGCTs).
These usually occur in men between 25 and 55 years of age.
We call this group of tumours teratomas. Although this isn’t strictly accurate, it’s a term that was previously used and is still often used. It’s also easier to say.
This group of tumours usually affects younger men – from about 15 to 35 years old. It includes different types of tumours such as teratomas and embryonal tumours. Many are a mixture of these types and other tumours, including seminoma. Most importantly, although there are some minor differences, these tumours behave and are treated in similar ways.
Rare types of testicular cancer
Sometimes a type of cancer called non-Hodgkin lymphoma| can occur in the testicle. This is treated as a non-Hodgkin lymphoma.
Other rare types are Leydig and Sertoli cell tumours. For more information about these tumours you can contact our cancer support specialists|.
For answers, support or just a chat, call the Macmillan Support Line free (Monday to Friday, 9am-8pm)
If you have any questions about cancer, need support or just want someone to talk to, ask Macmillan.