Symptoms
Common signs and symptoms of Rhabdomyosarcoma include:
When to see a doctor
If you experience severe or worsening symptoms, seek immediate medical attention. Always consult with a healthcare professional for proper diagnosis and treatment.
Causes & Risk Factors
Several factors can contribute to Rhabdomyosarcoma.
The exact cause of rhabdomyosarcoma remains unknown, but scientists understand it develops when primitive muscle cells undergo genetic changes that cause them to grow uncontrollably.
The exact cause of rhabdomyosarcoma remains unknown, but scientists understand it develops when primitive muscle cells undergo genetic changes that cause them to grow uncontrollably. These cells, called mesenchymal cells, normally develop into various types of connective tissue including muscle, bone, and cartilage during fetal development. When specific genetic mutations occur, these cells can transform into cancer cells instead of healthy muscle tissue.
Researchers have identified several genetic abnormalities associated with different types of rhabdomyosarcoma.
Researchers have identified several genetic abnormalities associated with different types of rhabdomyosarcoma. The alveolar subtype often involves a chromosomal translocation where pieces of chromosomes 2 and 13 or chromosomes 1 and 13 switch places, creating abnormal fusion genes that drive cancer growth. The embryonal subtype typically shows loss of genetic material from chromosome 11, which normally helps control cell growth.
Unlike many adult cancers, rhabdomyosarcoma in children rarely results from environmental exposures or lifestyle factors.
Unlike many adult cancers, rhabdomyosarcoma in children rarely results from environmental exposures or lifestyle factors. Instead, it appears to arise from random genetic events that occur during early development. Some cases may be associated with certain genetic syndromes like Li-Fraumeni syndrome or neurofibromatosis, but the vast majority occur sporadically without any identifiable hereditary pattern.
Risk Factors
- Li-Fraumeni syndrome or other genetic cancer syndromes
- Neurofibromatosis type 1
- Beckwith-Wiedemann syndrome
- Costello syndrome or Noonan syndrome
- Previous radiation therapy treatment
- Family history of soft tissue sarcomas
- Being male (slightly higher risk)
- Age under 10 years old
Diagnosis
How healthcare professionals diagnose Rhabdomyosarcoma:
- 1
Diagnosing rhabdomyosarcoma typically begins when parents notice an unusual lump, swelling, or other concerning symptoms in their child.
Diagnosing rhabdomyosarcoma typically begins when parents notice an unusual lump, swelling, or other concerning symptoms in their child. The pediatrician will perform a thorough physical examination and take a detailed medical history. If the initial evaluation raises suspicion for a serious condition, the doctor will likely refer the family to a pediatric oncologist or arrange for immediate imaging studies.
- 2
Several tests help confirm the diagnosis and determine the extent of disease.
Several tests help confirm the diagnosis and determine the extent of disease. Imaging studies usually start with ultrasound, CT scans, or MRI to visualize the tumor's size and location. A definitive diagnosis requires a tissue biopsy, where surgeons remove a small piece of the tumor for examination under a microscope. Pathologists look for specific cellular features and perform genetic testing to identify the exact subtype of rhabdomyosarcoma.
- 3
Once diagnosed, additional staging tests determine whether cancer has spread to other parts of the body.
Once diagnosed, additional staging tests determine whether cancer has spread to other parts of the body. These may include: - Chest CT scan to check for lung metastases - Bone scan to detect bone involvement - Bone marrow biopsy to look for cancer cells in the bone marrow - PET scan to identify areas of active cancer growth - Lumbar puncture if the tumor is near the brain or spinal cord. The staging process helps doctors develop the most appropriate treatment plan and provides important information about prognosis.
Complications
- Treatment-related complications can affect various body systems, depending on the specific therapies used and the tumor's location.
- Chemotherapy may cause immediate side effects like nausea, hair loss, increased infection risk, and fatigue.
- Some chemotherapy drugs can affect heart function or hearing, requiring ongoing monitoring during and after treatment.
- Growth delays may occur, particularly in younger children receiving intensive treatment.
- Long-term complications can develop years after successful treatment completion.
- Radiation therapy may affect growth and development of treated areas, potentially causing differences in bone or soft tissue development.
- Some survivors may experience learning difficulties, especially if they received radiation to the head or brain area.
- Secondary cancers, though rare, represent a serious long-term risk that requires lifelong surveillance.
- Fertility problems may occur in survivors who received certain chemotherapy drugs or radiation to pelvic areas.
Prevention
- Currently, no proven methods exist to prevent rhabdomyosarcoma since it typically results from random genetic changes that occur during early development.
- Unlike many adult cancers that can be prevented through lifestyle modifications, childhood rhabdomyosarcoma appears unrelated to environmental exposures, diet, or other controllable factors.
- Families with known genetic syndromes that increase rhabdomyosarcoma risk, such as Li-Fraumeni syndrome, may benefit from genetic counseling and enhanced surveillance.
- These families can work with oncologists to develop monitoring plans that might help detect cancers at earlier, more treatable stages.
- However, even in these cases, no specific interventions can prevent cancer from developing.
- The best approach focuses on awareness and early detection rather than prevention.
- Parents should seek medical attention promptly for any unusual lumps, persistent symptoms, or concerning changes in their child's health.
- Early diagnosis and treatment significantly improve outcomes for children with rhabdomyosarcoma.
Treatment for rhabdomyosarcoma always involves a multidisciplinary team approach combining surgery, chemotherapy, and often radiation therapy.
Treatment for rhabdomyosarcoma always involves a multidisciplinary team approach combining surgery, chemotherapy, and often radiation therapy. The specific treatment plan depends on the tumor's location, size, subtype, and whether it has spread to other areas. Most children receive treatment at specialized pediatric cancer centers where teams have extensive experience managing this rare cancer.
Chemotherapy forms the backbone of treatment for nearly all patients with rhabdomyosarcoma.
Chemotherapy forms the backbone of treatment for nearly all patients with rhabdomyosarcoma. Standard regimens typically include combinations of vincristine, actinomycin D, and cyclophosphamide, often abbreviated as VAC. Some higher-risk cases may receive additional drugs like ifosfamide, etoposide, or doxorubicin. Treatment usually continues for about one year, with medications given in cycles to allow the body time to recover between doses.
Surgical treatment aims to remove as much of the tumor as possible while preserving normal function and appearance.
Surgical treatment aims to remove as much of the tumor as possible while preserving normal function and appearance. Complete surgical removal offers the best chance for cure, but this isn't always feasible depending on the tumor's location. For tumors near vital organs or in cosmetically sensitive areas, surgeons may perform a biopsy first and plan definitive surgery after chemotherapy shrinks the tumor. In some cases, surgery may be delayed until after other treatments.
Radiation therapy targets any remaining cancer cells after surgery and chemotherapy.
Radiation therapy targets any remaining cancer cells after surgery and chemotherapy. Doctors carefully plan radiation to maximize cancer control while minimizing effects on growing tissues. Modern techniques like proton beam therapy can deliver more precise radiation doses, reducing long-term side effects. The decision to use radiation depends on factors such as patient age, tumor location, and how completely the tumor was removed surgically.
Living With Rhabdomyosarcoma
Life during rhabdomyosarcoma treatment involves frequent medical appointments, hospital stays, and careful attention to infection prevention. Families often find it helpful to maintain as normal a routine as possible while accommodating treatment schedules. Many children continue some form of schooling during treatment, either through hospital programs or modified home instruction.
Latest Medical Developments
Latest medical developments are being researched.
Frequently Asked Questions
Update History
May 1, 2026v1.0.0
- Published by DiseaseDirectory