Retinoblastoma (malignant tumor of the retina)

Retinoblastoma of the eye is a rare but serious disease in young children. The tumor develops from immature retinal cells and requires diagnosis.

K+31 specialists approach each case individually, involving ophthalmologists, oncologists, and geneticists specializing in ocular oncology.

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What is retinoblastoma?

What is retinoblastoma?

This is a malignant tumor of the retina that arises from immature precursor cells of the visual epithelium. Retinoblastoma of the eye is most often detected in children under five years of age. Essentially, it is an intraocular tumor. It grows inside the eyeball and, if left untreated, threatens the child's vision and life.

Experts classify this as ophthalmic oncology—a crossroad between ophthalmology and pediatric oncology.

Causes of the disease

Causes of the disease

The exact causes are not fully understood, but retinal cancer in children is associated with changes in the RB1 gene, which is responsible for retinal cell division. Depending on the mutation, two forms of the disease are distinguished.

Hereditary Retinoblastoma

Hereditary retinoblastoma occurs when the RB1 gene mutation is present in all cells of the body and is often passed from parent to child. This form often affects both eyes and manifests earlier, so families with a history of the disease are recommended to undergo genetic counseling before birth.

Sporadic Retinoblastoma

The sporadic form is more common and is associated with a random mutation in a single retinal cell after conception. It usually affects one eye, and the risk for siblings is low. Genetic testing can help differentiate between the two forms.

Symptoms of retinoblastoma

The clinical presentation depends on the size and location of the tumor. Only an ophthalmologist can detect an eye tumor in a child at an early stage, while parents themselves can notice later signs. This is why the symptoms of retinoblastoma should not be underestimated.

White pupillary reflex

The most well-known sign is a white pupil in photographs with a flash, instead of a red gleam. In the literature, this is called leukocoria: light reflects off the tumor inside the eye. Parents often notice this feature in photographs.

Strabismus

If the tumor affects the central area of the retina, visual acuity in one eye is impaired, and the brain stops using it as well as the other eye. The eye deviates to the side—this is what causes strabismus, sometimes the only early sign of the disease.

Vision Decreased

A child rarely complains of poor vision, so the decrease in visual acuity may go unnoticed for a long time. Awkwardness when playing and a reluctance to look out of one eye should be cause for concern.

Eye Pain and Redness

In the later stages, when the tumor blocks fluid drainage, pressure in the eye increases, causing redness, tearing, and pain. This requires an urgent visit to an ophthalmologist.

General information

Retinoblastoma Diagnosis

An examination confirms the diagnosis and determines its extent. Retinoblastoma diagnosis combines physical examination, imaging techniques, and laboratory tests, and helps confirm a malignant retinal tumor. It follows the following sequence:

  1. Consultation with a pediatric ophthalmologist and medical history collection
  2. Ophthalmological examination with pupil dilation
  3. Ultrasound of the eyeball
  4. MRI of the orbits and brain
  5. Genetic testing of the RB1 gene

This procedure helps determine the size and location of the tumor and plan treatment.

Specialist Consultation

The appointment begins with a discussion: the doctor clarifies the patient's complaints and family history. If a hereditary form of the disease is suspected, a consultation with an oncologist and geneticist is prescribed.

Ophthalmological examination

The main method is a fundus examination under medically dilated pupils. The doctor examines the fundus and assesses the tumor, including its size and location. Any retinal tumor detected during examination requires clarification of its boundaries.

Ultrasound diagnostics

Ultrasound of the eyeball clarifies the structure of the tumor and helps distinguish a tumor from other causes of leukocoria, such as hemorrhage. This method is safe and usually does not require anesthesia.

MRI and other imaging techniques

MRI of the orbits and brain is necessary for large tumors or suspected spread beyond the eye. Imaging helps rule out combined brain tumors in the hereditary form of the disease.

Genetic Testing

Genetic diagnostics identifies the RB1 gene mutation in the child's blood and in the parents. The results determine the monitoring strategy for the other eye and allow for genetic counseling for the family.

"In our practice, we regularly encounter situations where timely screening allows us to detect retinoblastoma at an early stage. A comprehensive approach, modern diagnostics, and collaborative work between specialists help us choose the most effective treatment strategy for each patient."

Retinoblastoma Diagnosis

Tumor Stages and Spread

The stage of a retinal tumor is determined by its size and signs of extension beyond the eye. This determines the extent of the examination and the chances of organ-preserving treatment. The table shows the differences between the stages.

Criteria Early stage Advanced process
Tumor size Small Significant
Presence of symptoms Often minimal Severe
Scope of diagnostics Basic Advanced
Organ-preserving Treatment High Limited
Prognostic factors Favorable Serious

The earlier the tumor is detected, the wider the choice of gentle treatments and the higher the chance of saving the eye.

Tumor Stages and Spread

Modern Methods of Retinoblastoma Treatment

There is no single treatment plan: it is tailored to the individual, combining approaches. Retinoblastoma treatment is aimed not only at stopping tumor growth but also at preserving the child's vision. The main methods are listed below.

Local Treatments

For small tumors, laser coagulation or cryotherapy are used—targeted destruction of the tumor with cold or a beam of light without extensive intervention. These methods are valuable when the goal is to preserve the eye and visual function.

Chemotherapy

Chemotherapy reduces tumor volume before local treatment or inhibits tumor growth in advanced cases. A pediatric oncologist selects medications based on the patient's age and stage of the disease.

Radiation Therapy

Radiation therapy is used less frequently if other methods have been ineffective. Modern radiation technologies target the tumor more precisely and reduce stress on the tissues around the eye.

Surgical Treatment

For large tumors and those at risk of spreading beyond the eye, surgical intervention, including removal of the eyeball, is necessary. The decision is made after an examination and discussion with the family.

Modern Methods of Retinoblastoma Treatment

How is treatment performed at a specialized center?

Pediatric ocular oncology requires specialized experience and a well-coordinated team. Treatment of retinoblastoma of the eye is almost always a team effort: an ophthalmologist, oncologist, and geneticist work together to determine the appropriate treatment strategy. We use modern treatment for eye tumors, based on clinical guidelines.

How is treatment performed at a specialized center?

Prognosis for retinoblastoma

Retinal cancer in children is more treatable with early treatment. The outcome depends on several factors.

Factors Affecting Prognosis

The outcome is influenced by the size and location of the tumor, its spread beyond the eye, the type of disease, and the time of initiation of therapy. Bilateral disease and advanced stages require intensive treatment.

The Importance of Early Detection

Early tumor detection increases the chances of preserving the eye and vision, not just the child's life. Timely diagnosis of retinoblastoma reduces the risk of spread beyond the orbit, so we recommend prompt examination.

Prognosis for retinoblastoma

Post-Treatment Monitoring

After treatment, the child remains under the care of an ophthalmologist and oncologist for several years. Regular monitoring includes:

  • Fundus examination, taking into account the child's age
  • Ultrasound and, if necessary, MRI of the orbits according to a schedule
  • Visual function assessment of each eye
  • Genetic counseling when planning children
  • Monitoring of the child's general condition and development

The frequency of examinations decreases as the child ages, but monitoring continues for years.

Benefits of an integrated approach

Treating this type of tumor requires experience and a well-coordinated organization. By contacting our center, patients and their families receive:

  • An interdisciplinary team of oncologists, ophthalmologists, and geneticists
  • A personalized examination program for each child
  • Modern imaging techniques and treatment effectiveness monitoring
  • Availability to obtain a second medical opinion
  • Support at all stages of treatment and monitoring
  • Adherence to clinical guidelines and evidence-based medicine

This approach speeds up and improves the accuracy of decisions when time is of the essence.

Answers to frequently asked questions

Here we have collected frequently asked questions from parents.

What is retinoblastoma?

Retinoblastoma is a malignant tumor of the retina that most often develops in childhood and requires prompt diagnosis and treatment.

What symptoms may indicate retinoblastoma?

Most commonly, these include a white pupil in photographs, strabismus, blurred vision, redness of the eye, and other changes that require a specialist examination.

Can retinoblastoma be cured?

With early detection, modern treatment methods can be highly effective and, in some cases, preserve vision.

Is follow-up necessary after treatment?

Yes, regular follow-up examinations help promptly detect changes and evaluate the results of treatment.
Conclusion

Conclusion

Retinoblastoma of the eye is a serious but treatable diagnosis if treated early. We strive to guide families through the diagnosis and treatment of retinoblastoma without anxiety. If you notice a white pupil, crossed eyes, or other alarming signs in your child, schedule a consultation at K+31. Our specialists will conduct an examination and offer a clear action plan.

References

Our doctors

Merkulov Igor Alexandrovich
Experience 34 years
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Merkulov
Igor Alexandrovich
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Ershova Ksenia Igorevna
Experience 23 years
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Ksenia Igorevna
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Abashin Sergey Yuryevich
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Balkarov Beslan Khasenovich
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Beslan Khasenovich
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Morozova Albina Soslanovna
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Chudnykh Sergey Mikhaylovich
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Sergey Mikhaylovich
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Olga Vladimirovna
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Magdiev Arslan Khulatdaevich
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Arslan Khulatdaevich
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Iluridze Georgy Davidovich
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Alferov Anton Sergeevich
Experience 16 years
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Anton Sergeevich
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Experience 13 years
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Nemenov Alexander Alexandrovich
Experience 7 years
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Lia Eduardovna
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Sokorutov Vasily Ivanovich
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Vasily Ivanovich
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Ivanov Alexey Mikhailovich
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Alexey Mikhailovich
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Experience 5 years
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