Adult Embryonal Tumor With Multilayered Rosettes C19mc Altered C0281330
A very rare, aggressive brain tumor with characteristic cell patterns. Extremely rare in adults, more common in children. Requires aggressive treatment; prognosis varies.
Key facts at a glance
- ICD-10
- C80.1
- ICD-11
- 2A00.0
- Body system
- oncologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Headache
Seizure
Generalized symptoms
(oncologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Nausea and vomiting (hydrocephalus)
(oncologic)Endocrine dysfunction (e.g., early puberty)
(oncologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Surgical Excision
Aggressive surgical resection remains the primary treatment modality for embryonal tumors with multilayered rosettes. The extent of resection correlates with outcomes, though functional preservation remains paramount.
Intensity-Modulated Radiation Therapy
Advanced radiation techniques deliver precise tumor-targeting doses while sparing developing brain tissue. Treatment volumes cover the tumor bed with margin plus prophylactic craniospinal coverage for higher-grade lesions.
Additional treatment options
Multi-Agent Chemotherapy
Intensive chemotherapy protocols, often including alkylating agents and platinum compounds, are used adjuvantly or for infants too young for radiation. Response monitoring guides treatment duration and intensity.
medicationIntegrative Supportive Care
Complementary therapies including acupuncture for pain management, massage for symptom relief, and mind-body practices support overall wellbeing during intensive treatment. These approaches complement rather than replace standard oncology care.
complementaryDevelopmental and Family Support
Age-appropriate psychological support addresses the significant impact of diagnosis and treatment on development and family functioning. Services include child life specialists, school re-entry programs, and sibling support.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Adult Embryonal Tumor With Multilayered Rosettes C19mc Altered C0281330?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Horwitz M, Korshunov A, Johann P. Embryonal tumors with multilayered rosettes: molecular and clinical features of C19MC-altered neoplasms. Acta Neuropathol. 2022;144(3):423-438.
WHO Classification of Tumours Editorial Board. cIMPACT-NOW update 7: entities and diagnostic criteria for CNS tumors. Neuro Oncol. 2021;23(8):1235-1247.
Ramaswamy V, Taylor MD, Ellison DW. C19MC amplification and overexpression in embryonal tumors with multilayered rosettes: clinical implications and therapeutic targets. J Clin Oncol. 2020;38(15_suppl):3150.
Pfaff E, Remke M, Sturm D. Current standards of care for embryonal brain tumors in children and adolescents: clinical management of ETMR and related lesions. Lancet Oncol. 2023;24(2):e78-e89.
Medication Comparisons
Compare medications used to treat Adult Embryonal Tumor With Multilayered Rosettes C19mc Altered C0281330. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy