title: Occipital diploic cranial fasciitis after radiotherapy for a cerebellar medulloblastoma.
abstract: Radiation-induced cranial fasciitis is a rare complication of radiotherapy, especially in an intradiploic location. The authors report such a case of cranial fasciitis in a 13-year-old girl previously subjected to cranial radiotherapy for a recurrent cerebellar medulloblastoma. The patient had undergone a gross-total removal of a medulloblastoma followed by no radiation therapy at the age of 10 years. The tumor recurred at the original site 2 years later, warranting a repeat operation with a gross-total tumor removal and subsequent radiation therapy. The follow-up MRI sequence demonstrated no abnormal appearance for 1 year, until a new enhancing mass was found within the occipital bone adjacent to the prior bone window. Following its resection, the new lesion was histologically identified as cranial fasciitis. Differential diagnosis of a well-circumscribed bone lesion should include cranial fasciitis, especially in young children with radiotherapy for a previous intracranial malignancy. Radiotherapy should be considered among the inciting factors in the development of cranial fasciitis. The osteolytic lesions of cranial fasciitis, although nontumoral and self-limited in duration, should be eligible candidates for early, total resection to avoid potential intracranial expansion.
authors.affiliation: Departments of Neurosurgery and.
authors.forename: Bo
authors.initials: B
authors.lastname: Wu
authors.forename: Hong
authors.initials: H
authors.lastname: Zhu
authors.forename: Weidong
authors.initials: W
authors.lastname: Liu
authors.forename: Longyi
authors.initials: L
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D002528:Cerebellar Neoplasms / Q000532:radiotherapy* / Q000601:surgery; D002648:Child; D005208:Fasciitis / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008527:Medulloblastoma / Q000532:radiotherapy* / Q000601:surgery; D009364:Neoplasm Recurrence, Local / Q000532:radiotherapy* / Q000601:surgery; D009777:Occipital Bone; D018714:Radiotherapy, Adjuvant / Q000009:adverse effects*; D012086:Reoperation