Background: Hemangioblastomas are vascular tumors, of benign behavior, that originate in the central nervous system. Supratentorial hemangioblastomas are extremely rare and are generally associated with Von Hippel-Lindau disease (VHL). The involvement of structures by contiguity, such as blood vessels or meninges, is something exceptional. There are few references in the literature of supratentorial hemangioblastomas with meningeal involvement and most of them are described in reports or small case series. Methods: We performed a systematic review of the literature to observe the characteristics of patients with supratentorial hemangioblastomas with meningeal involvement. In addition, we present the case of a 43-year-old male patient with a sporadic supratentorial hemangioblastoma with both, meningeal and vascular involvement that recurred years after treatment. Results: The patients presented supratentorial tumors with meningeal involvement, we had a 1.2:1 ratio male-female distribution. The mean age was 50 years. Most tumors were located in the cerebral hemispheres, the lobe affected most frequently was the frontal lobe. About 67% of the cases were sporadic and only 21% were related to VHL disease. There were three cases of recurrence after surgery. Conclusion: Supratentorial hemangioblastomas are extremely rare lesions. It is rare for supratentorial hemangioblastomas to invade adjacent structures such as blood vessels or meninges, however, when this happens, it is recommended a preoperative vascular imaging study, especially in parasagittal hemangioblastomas where superior longitudinal sinus may be involved. In these cases, en bloc surgical resection is difficult and the probability of recurrence is higher. Although clinical trials and studies with a greater casuistry are necessary to establish guidelines for the management of supratentorial hemangioblastomas, nowadays, contribution of new cases is useful for understanding this pathology.

Introduction Traumatic upper cervical spine injuries are frequently associated with high-energy trauma. The potential injuries to vital organs associated to a possible neurological damage marks the severity of this pathology. The neurological structures can be affected by a primary injury, spinal cord, cranial nerves and spinal nerves; or secondary to a vascular compromise, mainly the vertebral arteries. The dislocation of the atlantoaxial joint causes an unstable cervical spine that could be often associated with fracture of the Atlas and Axis. Evidently, these have a high morbimortality rate. Case presentation A young woman who suffered a severe polytrauma secondary to a motor vehicle collision was diagnosed with a sagittal plane atlantoaxial joint dislocation associated with a type III odontoid fracture, despite an adequate initial polytrauma management, the neurological damage was too critical, ultimately the decease of the patient. Discussion The atlantoaxial joint dislocation is a rare condition of the upper cervical spine and is usually secondary to a high-energy traumatism. The disruption of the atlantoaxial ligaments originates the considered most unstable cervical spine lesion and with the highest mortality. Attributable to the kinetic the bone fracture of the Atlas and Axis are commonly related, specially the odontoid process. Early immobilization followed by surgical decompression and stabilization is primordial. Typically, these injuries have an ominous prognosis, that is aggravated if added a polytrauma affecting adjacent neurological structures and other vital organs.

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