Andreina Martinez Amado's research while affiliated with Nueva Granada Military University and other places

Fibrous solitary Tumors/Hemangiopericytomas are tumors of the central nervous system that over the years have been studied more intensely, they have similar findings and behaviors with meningiomas, which presents us with a significant challenge when defining a diagnosis and medical or surgical management. They have a low incidence and their classification is strict according to their degree of cellularity and vascular compromise. Presentation is unusual in young people, the most significant incidence is between the fourth and sixth decade of life with a predominance for males, in this report, we show a patient with 15 years old in which there is evidence of a lesion compatible with an anaplastic hemangiopericytoma or grade III Fibrous solitary Tumor/Hemangiopericytoma according to the WHO classification to whom neurosurgical and adjuvant management was provided with a 100% resection of the lesion.

Down syndrome (DS) occurs when an individual has a full or partial extra copy of chromosome 21 and is the most common of all malformation syndromes. Associating with numerous pathologies like anterior atlantoaxial subluxation (AAAS) which is an increase in the space between the anterior arch of the first cervical vertebra (C1) and the odontoid process of the second vertebra (C2), most of the time its asymptomatic, only 1-2% to all the 30% who may have the AAAS and DS develop clinical symptoms. In this occasion, we present the case of a patient with SD and Juvenile chronic arthritis (JCA) who has atlantoaxial subluxation of approximately 11mm, basilar impression and platybasia with severe medullary compression in 2 points, requiring surgical management by the Neurological Surgery Service in Bucaramanga-Colombia.

Oligodendrogliomas (OGD) are glial tumors, together with mixed oligoastrocytoma constituting 5-20% of all gliomas, which occur predominantly in younger populations and are managed with surgery and chemotherapy with good long-term prognosis after treatment and additionally present with low rates of metastases. We present the case of a 46-year-old patient with intracranial right frontal subcortical OGD [World Health Organisation (WHO) grade II] managed at the Neurosurgery Department in Foscal Clinic, Floridablanca, Colombia. Two years after brain surgery the patient presents with neurological symptomatology suggestive of spinal cord compression and is found to have a neoplastic lesion with extra medullary compressive strength on the conus medullary and wrapping all of the roots with the final report of pathology and immunohistochemistry indicating: OGD (WHO grade III), this lesion was the only one found, the brain studies shows any residual tumor or recurrence in the primary tumor site.