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Journal of Korean Neurosurgical Society 1995;24(1): 67-72.
Subfrontal Recurrence of Medulloblastoma after Postoperative Whole Neuroaxis Irradiation.
In Ho Park, Shin Jung, Jae Hyoo Kim, Soo Han Kim, Sam Suk Kang, Je Hyuk Lee
Department of Neurosurgery, Chonnam University Medical School, Kwangju, Korea.
The authors report a 12-year-old boy who had developed subfrontal recurrence of a medulloblastoma followed by postoperative whole neuroaxis irradiation. The remission persisted for about 3 years after posterior fossa surgery and radiotherapy. Then the tumor recurred in the frontal base, but local recurrence in the posterior fossa was not observed. Operative removal of the metastasis was carried out and the pathological finding was same as medulloblastoma in the posterior fossa. A pitfall of conventional whole brain radiation port is the base of the anterior cranial fossa. Then the entire subarachnoid space should be included in the postoperative radiation field for the treatment of medulloblstoma.
Key Words: Medulloblastoma; Metastasis; Radiation field
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