What is a Germ Cell Tumor?

A germ cell tumor is a growth that starts from germ cells, which are the cells that develop into:

Eggs in women
Sperm in men

Because of this, germ cell tumors most commonly develop in:

Ovaries (in females)
Testicles (in males)

Sometimes, germ cell tumors can grow in other parts of the body, such as the abdomen, chest, lower back, tailbone, or brain. These are called extragonadal germ cell tumors.

Germ cell tumors are seen most often in children, teenagers, and young adults.

Types of Germ Cell Tumors

Germ cell tumors can be:

Benign (non-cancerous) – do not spread
Malignant (cancerous) – can spread to other parts of the body

Common types include:

Teratomas

Contain tissues like hair, teeth, muscle, or bone
Mature teratomas (dermoid cysts): Usually benign and the most common ovarian germ cell tumor
Immature teratomas: Cancerous and fast-growing

Yolk Sac Tumors

Cancerous and fast-spreading
Most common malignant germ cell tumor in children

Germinomas

Cancerous tumors
Called dysgerminoma in ovaries and seminoma in testicles
Often found in the brain or spinal cord

Embryonal Cell Carcinoma

Rare and aggressive cancer
Often found along with other germ cell tumor types

Polyembryoma

Very rare and fast-growing cancer
Usually part of a mixed tumor

Choriocarcinoma

Rare cancer made of placenta-like cells
Can occur in ovaries, testicles, or uterus
May affect both the parent and fetus during pregnancy

Mixed Germ Cell Tumors

Contain two or more cancerous germ cell tumor types
Many germ cell cancers are mixed tumors

Seminomas vs. Non-Seminomatous Germ Cell Tumors (in men)

Male germ cell tumors are grouped into two types:

Seminomas:
- Grow and spread slowly
- Usually respond well to treatment
Non-seminomas:
- Grow and spread faster
- Include yolk sac tumors, embryonal carcinoma, choriocarcinoma, and teratomas

Both types are cancerous and affect the testicles.

Who is affected by Germ Cell Tumors?

Germ cell tumors can occur at any age but are most common in:

Infants and young children
Teenagers
Young adults (15–35 years)
Ovarian germ cell tumors: Common in ages 10–30
Testicular germ cell tumors: Make up most testicular cancers
Extragonadal tumors: Common in young children and adolescents

Symptoms of Germ Cell Tumors

Symptoms depend on where the tumor is located and how large it is.

Ovarian Germ Cell Tumors

Pelvic or lower abdominal pain
Abdominal swelling or bloating
Painful ovarian mass
Nausea
Irregular vaginal bleeding

Some ovarian tumors cause no symptoms and are found during scans.

Testicular Germ Cell Tumors

Lump or swelling in a testicle
Pain or heaviness in the scrotum
Change in testicle size or shape
Groin, abdominal, or back pain

Extragonadal Germ Cell Tumors

Symptoms depend on location:

Breathing problems (chest)
Leg weakness (lower back)
Difficulty passing urine or stool (pelvis)
Abdominal pain or swelling
Lump near tailbone in children

Some tumors release hormones and may cause early puberty or abnormal sexual development in children.

What causes Germ Cell Tumors?

Germ cells form early in pregnancy and normally move to the ovaries or testicles.

In germ cell tumors, these cells do not mature normally and grow into tumors instead.

In extragonadal tumors, germ cells settle in unusual places like the chest, brain, or abdomen.

The exact cause is not clearly known.

Risk Factors for Germ Cell Tumors

Risk may be higher in people with:

Family history of germ cell tumors
Undescended testicles (cryptorchidism)
Genetic conditions such as:
- Turner syndrome
- Klinefelter syndrome

How are Germ Cell Tumors Diagnosed?

Doctors may use:

Physical examination
Ultrasound
CT scan or MRI
PET scan (to see spread)
Blood tests (AFP, hCG, LDH tumor markers)
Biopsy (tissue test)

In some cases, the affected ovary or testicle is removed to confirm diagnosis and begin treatment.

How are Germ Cell Tumors Treated?

Germ cell tumors Treatment depends on the tumor type, size, and spread.

Treatment options include:

Surgery:Main treatment to remove the tumor, ovary, or testicle if needed
Chemotherapy:
Uses medicines to kill cancer cells
Very effective for most germ cell tumors
Radiation Therapy:
Uses high-energy rays to destroy cancer cells
Used for certain tumor types

Are Germ Cell Tumors Curable?

Yes. Most germ cell tumors are highly curable, especially when detected early.

Testicular germ cell tumors: ~95% survival rate
Ovarian germ cell tumors: ~93% survival rate
Childhood germ cell tumors: 82–90% survival rate

Outcomes depend on:

Age
Tumor type
Tumor size and location
Spread of cancer
Response to treatment

When to See a Doctor?

See a doctor if you notice:

A lump in the testicle or abdomen
Persistent pelvic or abdominal pain
Swelling, bloating, or unexplained symptoms

Early diagnosis greatly improves treatment success.

Why choose Tender Palm Super-Speciality Hospital for Germ Cell Tumor treatment in Lucknow, India?

Tender Palm Super-Speciality Hospital offers advanced Germ Cell Tumor treatment in Lucknow, India, at an affordable cost. We have a team of experienced oncologists and organ-specific specialists, known as some of the best doctors for cancer care. We provide accurate diagnosis with advanced imaging and biopsy tests, personalized treatment including surgery, chemotherapy, and long-term follow-up care. Our team has decades of experience in successfully treating Germ Cell Tumor in Lucknow, India.