Question: Is there a role of proton beam therapy in medulloblastoma treatment?

Context:
All papers directly compared outcomes from protons with photons, five papers included medulloblastoma, four papers each included craniopharyngioma and low grade gliomas and three papers included ependymoma.
There are many indications of protontherapy for paediatric brain tumours in curative intent, either for localized treatment of ependymomas, germ-cell tumours, craniopharyngiomas, low-grade gliomas; or panventricular irradiation of pure non-secreting germinoma; or craniospinal irradiation of medulloblastomas and metastatic pure germinomas.
Cost-effectiveness analysis of cochlear dose reduction by proton beam therapy for medulloblastoma in childhood.
BACKGROUND: The aim of this study is to evaluate the cost-effectiveness of proton beam therapy with cochlear dose reduction compared with conventional X-ray radiotherapy for medulloblastoma in childhood.METHODS: We developed a Markov model to describe health states of 6-year-old children with medulloblastoma after treatment with proton or X-ray radiotherapy.
Evaluation of permanent alopecia in pediatric medulloblastoma patients treated with proton radiation.
BACKGROUND: To precisely calculate skin dose and thus to evaluate the relationship between the skin dose and permanent alopecia for pediatric medulloblastoma patients treated with proton beams.
CONCLUSIONS: Our results based on 12 patients provide a relationship between the skin dose and permanent alopecia for pediatric medulloblastoma patients treated with protons. 
Proton beam craniospinal irradiation reduces acute toxicity for adults with medulloblastoma.
PURPOSE: Efficacy and acute toxicity of proton craniospinal irradiation (p-CSI) were compared with conventional photon CSI (x-CSI) for adults with medulloblastoma.
CONCLUSIONS: This report is the first analysis of clinical outcomes for adult medulloblastoma patients treated with p-CSI. 
Dilemmas concerning dose distribution and the influence of relative biological effect in proton beam therapy of medulloblastoma.
OBJECTIVE: To improve medulloblastoma proton therapy.
The aim of this study is to evaluate the cost-effectiveness of proton beam therapy with cochlear dose reduction compared with conventional X-ray radiotherapy for medulloblastoma in childhood.
The aim of this study is to evaluate the cost-effectiveness of proton beam therapy with cochlear dose reduction compared with conventional X-ray radiotherapy for medulloblastoma in childhood.We developed a Markov model to describe health states of 6-year-old children with medulloblastoma after treatment with proton or X-ray radiotherapy
All patients completed therapy without interruption.Our proton-beam technique for craniospinal irradiation of pediatric medulloblastoma has successfully reduced normal-tissue doses and acute treatment-related sequelae
Potential role of proton therapy in the treatment of pediatric medulloblastoma/primitive neuro-ectodermal tumors: spinal theca irradiation
For 6 MV x-rays > 60% of the dose prescribed to the target was delivered to 44% of the heart volume, while the proton beam was able to completely avoid the heart, the liver, and in all likelihood the thyroid and gonads as well.The present study demonstrates a potential role of proton therapy in decreasing the dose (and toxicity) to the critical structures in the irradiation of the spinal neuraxis in medulloblastoma/PNET
Potential role of proton therapy in the treatment of pediatric medulloblastoma/primitive neuroectodermal tumors: reduction of the supratentorial target volume
This review describes the role of radiation in general and proton therapy in particular for the treatment of medulloblastoma, central nervous system primitive neuroectodermal tumors, atypical teratoid/rhabdoid tumors, and the recently described embryonal tumor with multilayered rosettes
Reducing toxicity from craniospinal irradiation: using proton beams to treat medulloblastoma in young children.
Intensity-modulated radiotherapy did show more bladder dose reduction than the other techniques in pelvic sarcoma irradiation.CONCLUSIONS: In the diseases studied, using various techniques of 3D-CRT, electrons, IMRT, and protons, protons are most optimal in treating retinoblastomas, medulloblastomas (posterior fossa and craniospinal), and pelvic sarcomas.
For 6 MV x-rays>60% of the dose prescribed to the target was delivered to 44% of the heart volume, while the proton beam was able to completely avoid the heart, the liver, and in all likelihood the thyroid and gonads as well.CONCLUSION: The present study demonstrates a potential role of proton therapy in decreasing the dose (and toxicity) to the critical structures in the irradiation of the spinal neuraxis in medulloblastoma/PNET.
In medulloblastoma, three posterior fossa irradiation techniques were analyzed: 3D-CRT, IMRT, and protons.
Potential role of proton therapy in the treatment of pediatric medulloblastoma/primitive neuro-ectodermal tumors: spinal theca irradiation.
Potential role of proton therapy in the treatment of pediatric medulloblastoma/primitive neuroectodermal tumors: reduction of the supratentorial target volume.
The present study demonstrates a potential role of proton therapy in decreasing the dose (and toxicity) to the critical structures in the irradiation of the spinal neuraxis in medulloblastoma/PNET.
Cost-effectiveness analysis of cochlear dose reduction by proton beam therapy for medulloblastoma in childhood.
Dilemmas concerning dose distribution and the influence of relative biological effect in proton beam therapy of medulloblastoma.
To improve medulloblastoma proton therapy.
Our proton-beam technique for craniospinal irradiation of pediatric medulloblastoma has successfully reduced normal-tissue doses and acute treatment-related sequelae.
Treatment planning with protons for pediatric retinoblastoma, medulloblastoma, and pelvic sarcoma: how do protons compare with other conformal techniques?

Answer: Yes, proton beam therapy is used for treatment of medulloblastoma.
Exact answer: yes