Testing & Diagnosis for Alveolar Soft Part Sarcoma in Children

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The first step in treating your child is forming an accurate and complete diagnosis. 

How does my child’s doctor know that it’s alveolar soft part sarcoma?
Here at Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, your child's doctor may use several tests and procedures to determine the exact type of tumor and whether it has spread. These tests may include: 

  • a physical exam, including checking the limb where the tumor is located
  • x-rays, which produce images of internal tissues, bones, and organs onto film
  • magnetic resonance imaging (MR or MRI), which produces detailed images of the area where the tumor is located
  • computerized tomography scan (CT or CAT scan) to capture a detailed view of the body, in some cases
  • biopsy or tissue sample from the tumor to provide definitive information about the type of tumor; this is collected during surgery
  • bone scan to detect bone involvement
  • complete blood count (CBC), which measures size, number and maturity of different blood cells in a specific volume of blood
  • other blood tests, including blood chemistries 

After we complete all necessary tests, our experts meet to review and discuss what they have learned about your child's condition. Then we will meet with you and your family to discuss the results and outline the best treatment options.


We are grateful to have been ranked #1 on U.S. News & World Report's list of the best children's hospitals in the nation for the third year in a row, an honor we could not have achieved without the patients and families who inspire us to do our very best for them. Thanks to you, Boston Children's is a place where we can write the greatest children's stories ever told.”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital 300 Longwood Avenue, Boston, MA 02115 617-355-6000 | 800-355-7944

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