What is the group staging system of rhabdomyosarcoma?

Updated: Feb 01, 2019
  • Author: Amelia F Drake, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Answer

See the list below:

  • Group I: Thirteen percent of all patients with rhabdomyosarcoma are in group I. This group is defined by localized disease with complete surgical resection and no evidence of regional nodal involvement.

  • Group II: Twenty percent of patients with rhabdomyosarcoma are in group II.

    • Group IIA patients have grossly resected disease with microscopic residual disease and no regional involvement.

    • Group IIB patients have had complete resection with no residual disease, but they also have regional disease with involved nodes.

    • Group IIC is a hybrid of groups IIA and IIB, containing patients with microscopic residual disease and regional nodal involvement.

  • Group III: Approximately 48% of patients with rhabdomyosarcoma are in group III. This group is marked by incomplete resection or biopsy only; therefore, it is characterized as gross residual disease.

  • Group IV: Approximately 18% of patients with rhabdomyosarcoma are in group IV. Individuals in group IV have distant metastasis at the time of diagnosis.


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