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☆

10 Neuroblastoma

121

 

 

10.12Therapy

Therapy depends on age, stage, tumor localization, and molecular features at diagnosis.

10.12.1Surgical Procedure

•Initial surgery is for diagnostic tissue, staging, and tumor excision when possible without causing injury to vital structures

•Often radical resection becomes possible after chemotherapy and/or radiotherapy

•Up to 25% of children with neuroblastoma initially have local lymph node involvement

•Complications of surgery:

–Hemorrhage

–In adherent tumors to the kidney, nephrectomy

–Horner syndrome (see above)

10.12.2

Chemotherapy

•

Combinations of chemotherapy: cyclophosphamide/ifosfamide, cisplatin, doxo-

 

rubicin, and epipodophyllotoxin according to international protocols

•

The course of therapy is divided into an induction phase and a consolidation phase

10.12.3

Radiotherapy

•Neuroblastoma is radiosensitive

•Irradiation is limited by:

–Age of the patient

–Adverse long-term sequelae

–Combination with chemotherapy

•Irradiation is indicated:

–To decrease the size of large tumor masses

–To reduce tumor size and decompress intraspinal tumor masses

–For palliative treatment

10.12.4Risk-Adapted Management

10.12.4.1 Low Risk

•Stages I, IIA, IIB, IVS (DNA index more than 1)

•No NMYC amplification

•Favorable histology

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