Rhabdomyosarcoma epidemiology and demographics: Difference between revisions
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*Undifferentiated sarcoma: Infants younger than 1 year have a higher incidence of undifferentiated sarcoma. | *Undifferentiated sarcoma: Infants younger than 1 year have a higher incidence of undifferentiated sarcoma. | ||
===Age=== | ===Age=== | ||
In general they are found in young patients | In general, they are found in young patients less than 45 years of age. | ||
*Rhabdomyosarcoma is most commonly seen in children aged one to five years old. Overall, 65% of all rhabdomyosarcomas are diagnosed in patients under 10 years old. | *Rhabdomyosarcoma is most commonly seen in children aged one to five years old. Overall, 65% of all rhabdomyosarcomas are diagnosed in patients under 10 years old. | ||
*Less commonly, it can also present in teens aged 15 to 19, and can even develop in adulthood, though this is even more rare. | *Less commonly, it can also present in teens aged 15 to 19, and can even develop in adulthood, though this is even more rare. | ||
Revision as of 19:26, 1 September 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Epidemiology and Demographics
Rhabdomyosarcoma is a relatively rare form of cancer. It is most common soft tissue sarcoma in children. It accounts for 5-8% of childhood cancers and and 19% of all pediatric soft tissue sarcomas.
Incidence
The overall incidence of rhabdomyosarcoma in children is 0.45 cases for 100,000 children and 50% of cases are seen in the first decade of life. Incidence may depend on the histologic subtype of rhabdomyosarcoma:
- Embryonal rhabdomyosarcoma: Embryonal rhabdomyosarcoma peaks in 0 to 4 year age group at approximately 0.4 cases per 100,000 children, with a lower rate in adolescents, approximately 0.15 cases per 100,000 adolescents.
- Alveolar rhabdomyosarcoma: The incidence of alveolar rhabdomyosarcoma does not vary by gender and is constant from ages 0 to 19 years at approximately 0.1 case per 100,000 children and adolescents.
- Undifferentiated sarcoma: Infants younger than 1 year have a higher incidence of undifferentiated sarcoma.
Age
In general, they are found in young patients less than 45 years of age.
- Rhabdomyosarcoma is most commonly seen in children aged one to five years old. Overall, 65% of all rhabdomyosarcomas are diagnosed in patients under 10 years old.
- Less commonly, it can also present in teens aged 15 to 19, and can even develop in adulthood, though this is even more rare.