Meduloblastoma desmoplásico en adulto joven / Desmoplastic medulloblastoma in a young adult

Objective. We report a case of a medulloblastoma; a cerebellar malignant tumor, very frequent in childhood and whose presentation is rare in adults; the are few papers published of adult medulloblastoma. Description. Young adult, whith right hemisphere cerebellar tumor, with perilesional edema, local mass effect ant supratentorial hydrocephalus. Intervention. Suboccipital craniectomy, intraoperative biopsy diagnosis of medulloblastoma, planning and achieving total tumor resection. Conclusion. It should be highlighted the importance of tumor resection as extensive as possible, supplemented by radiation therapyto the whole craniospinal axis with the help of an exhautive, clinical and imaging serial follow-up.