Alveolar Soft Part Sarcoma

National Organization for Rare Disorders, Inc.

It is possible that the main title of the report Alveolar Soft Part Sarcoma is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.


  • ASPS
  • Alveolar sarcoma of soft parts
  • ASP sarcoma

Disorder Subdivisions

  • None

General Discussion

Alveolar soft part sarcoma (ASPS) is a rare sarcoma (malignant tumor of connective tissue) of an unclear cause. It is among the least common sarcomas, representing 0.2-1 percent of large studies of soft tissue sarcomas. Since there are approximately 8000 soft-tissue sarcomas per year that arise in the United States, this means there are on the order of 15 to 80 cases nationwide each year. It is characterized by a painless mass in the leg or buttock, with a particular affinity to travel to the lungs as multiple nodules, presumably while the sarcoma itself is still small. ASPS, is very rare, because it involves a specific breaking and joining event between two chromosomes, called an "unbalanced translocation". This finding is observed in essentially all ASPS examined so far. This finding cannot be passed on to children, however, as the finding occurs only in the tumor, not in the normal cells, in addition, there are no families in which multiple family members have ASPS.

Treatment is with surgery and radiation for the primary place where the sarcoma arises. For disease that travels to the lungs, sometimes surgery is possible to remove nodules, but more typically chemotherapy is the only option for treatment. This tumor tends to be resistant to standard chemotherapy, so new treatments involving new chemotherapy drugs are also a reasonable option for treatment. Interferon-alfa showed benefit in one person from Japan with ASPS. There is little other data on possible helpful chemotherapy for this tumor.


American Cancer Society, Inc.
250 Williams NW St
Ste 6000
Atlanta, GA 30303
Tel: (404)320-3333
Tel: (800)227-2345
TDD: (866)228-4327

National Cancer Institute
6116 Executive Blvd Suite 300
Bethesda, MD 20892-8322
Tel: (301)435-3848
Tel: (800)422-6237
TDD: (800)332-8615

National Coalition for Cancer Survivorship
1010 Wayne Avenue
7th Floor
Silver Spring, MD 20910
Tel: (301)650-9127
Fax: (301)565-9670
Tel: (888)650-9127

Sarcoma Foundation of America
9899 Main Street Ste 204
Damascus, MD 20872
Tel: (301)253-8687
Fax: (301)253-8690

Sarcoma Alliance
775 East Blithedale 334
Mill Valley, CA 94941
Tel: (415)381-7236
Fax: (415)381-7235

Rare Cancer Alliance
1649 North Pacana Way
Green Valley, AZ 85614

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223

Cure Alveolar Soft Part Sarcoma International
260 Tappan St.
Brookline, MA 02445
Tel: (617)731-1143

Friends of Cancer Research
1800 M Street NW
Suite 1050 South
Washington, DC 22202
Tel: (202)944-6700

American Society of Clinical Oncology
2318 Mill Road Suite 800
Alexandria, VA 22314
Tel: (571)483-1780
Fax: (571)366-9537
Tel: (888)651-3038

Cancer Support Community
1050 17th St NW Suite 500
Washington, DC 20036
Tel: (202)659-9709
Fax: (202)974-7999
Tel: (888)793-9355

Livestrong Foundation
2201 E. Sixth Street
Austin, TX 78702
Tel: (512)236-8820
Fax: (512)236-8482
Tel: (877)236-8820

76 Ellsworth Street
San Francisco, CA 94110
Tel: (415)826-0474

Northwest Sarcoma Foundation
P.O. Box 91460
Portland, OR 97291
Tel: (503)954-5740

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site or email

Last Updated:  5/9/2008
Copyright  2002 National Organization for Rare Disorders, Inc.