title: Disappearing cystic cerebellar medulloblastoma: the ghost tumour.
abstract: A case of medulloblastoma, which disappeared following steroid administration and a single sitting of radiotherapy (8Gy) is presented. At surgical exploration tumour was not found, multiple biopsies were negative. Post operative CT scan too did not show the tumour. Five months later, tumour reappeared in left cerebellar lobe in cystic and solid form. Patient was reoperated and tumour was decompressed. The biopsy showed medulloblastoma. To our knowledge, medulloblastomas are not known to be completely responsive to either of these modalities.
authors.affiliation: Department of Neurosurgery, Gobind Ballabh Pant Hospital, Jawahar Lal Nehru Marg, New Delhi-110 002, India. vgupta@gbpant.org
authors.forename: V
authors.initials: V
authors.lastname: Gupta
authors.forename: S
authors.initials: S
authors.lastname: Kumar
authors.forename: M
authors.initials: M
authors.lastname: Tatke
authors.forename: A K
authors.initials: AK
authors.lastname: Singh
authors.forename: S
authors.initials: S
authors.lastname: Sinha
authors.forename: D
authors.initials: D
authors.lastname: Singh
mesh_terms: D000293:Adolescent; D018931:Antineoplastic Agents, Hormonal / Q000627:therapeutic use*; D002528:Cerebellar Neoplasms / Q000188:drug therapy* / Q000532:radiotherapy*; D003388:Cranial Fossa, Posterior; D003907:Dexamethasone / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008527:Medulloblastoma / Q000188:drug therapy* / Q000532:radiotherapy*
chemical_list: D018931:Antineoplastic Agents, Hormonal; D003907:Dexamethasone