Embryonal Tumours are very rare past childhood and most commonly affect children in the first few years of life.
There are four main types of Embryonal Tumour–
Neuroblastoma in the sympathetic nervous system – This is the second most common solid tumour in children. This type of cancer occurs in infants and young children and it is rarely found in children older than 10. It usually starts in abdomen and is noticed as swelling although It can start around the spinal cord in the chest, neck, or pelvis . It can also cause bone pain and fever.
Retinoblastoma in the eye – Retinoblastoma usually occurs in children around the age of 2, and is seldom found in children older than 6. It affects the retina, a thin membrane in the back of eye that works like a camera, making a picture of what we see. They are usually found because a parent or doctor notices a child’s eye looks unusual. Some children have retinoblastoma that runs in families.
Nephroblastoma otherwise known as Wilms Tumour in the kidney – Wilms tumour starts in one, or sometimes, both kidneys. It is most often found in children about 3 to 4 years old, and is uncommon in children older than age 6. It is the most common type of kidney cancer in children but is very different from kidney cancer in adults.
It can show up as a swelling or lump in the belly (abdomen). Sometimes the child might have other symptoms, like fever, pain, nausea, or poor appetite.