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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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