Central nervous system granulocytic sarcoma: Report of 2 cases and review of the literature.

Granulocytic sarcomas are solid, extramedullary-located neoplasms composed of immature myeloid cells, associated with myeloproliferative syndromes. Central nervous system involvement is very rare and may develop either after complete remission, coexist with or precede the systemic disease, being the last one that guides the radiological diagnosis and marks the prognosis. In this work, we report 2 pathologically-verified cases of intracranial granulocytic sarcoma treated by surgical means.

Pure subcutaneous seeding from medulloblastoma.

The authors present a patient with subcutaneous tumors associated with a desmoplastic medulloblastoma. This 6-year-old male who had previously undergone total removal of a cerebellar medulloblastoma was admitted because of new tumoral masses in the abdominal wall and the nuchal area. Ultrasound imaging demonstrated that both lesions were in the subcutaneous tissue.

Pediatric granulomatous cerebral amebiasis: a delayed diagnosis.

We present four cases of cerebral amebae infection treated at our neurosurgical department. Patient 1 was a 12-year-old male with skin lesions of 2 years' progression involving the midface. He received a corticosteroid course, and, after that, he presented a right body hemiparesis.