RESUMO

Spinal Arteriovenous Metameric Syndrome is a rare and complex nonhereditary genetic vascular disorder, affecting multiple layers of tissues at the same metamere, including the spinal cord. We present a case of a 20-year-old man who presented to the emergency department with sudden headache and transient loss of consciousness. Cranial computed tomography scan revealed subarachnoid hemorrhage predominantly in the cerebellar cisterns, fourth ventricle, extending to the basal cisterns. Cerebral angiography showed no abnormalities. Cervical angiographic acquisitions demonstrated a spinal metameric arteriovenous malformation (AVM) at the C3 and C4 levels. Cervical magnetic resonance imaging also confirmed the metameric AVM, revealing both intradural intramedullary and extra-dural vascular lesions in the vertebrae and adjacent soft tissues. The patient was referred for endovascular treatment. Although quite rare, the association between cervical spinal arteriovenous shunt diseases and intracranial hemorrhage has been reported. The bleeding in this case may be attributed to venous reflux into intracranial veins.

RESUMO

Se presenta el caso clínico de un paciente de 57 años de edad, de la raza blanca, con cuadro clínico de compresión medular dorsal, por lo cual se le realizó una laminectomía de D5-D7, con resección de una lesión extradural, de color vino, redondeada, de 3x2x2 cm. Los resultados de la biopsia confirmaron el diagnóstico de una malformación angiomatosa (cavernoma). La cirugía es el tratamiento ideal para estos tipos de lesiones y la resonancia magnética de columna, un estudio útil para diagnosticar y tratar a los afectados.

The clinical case of a white 57 year-old patient is presented, with clinical pattern of dorsal medullary compression, reason why a laminectomy of D5-D7 was carried out, with resection of an extradural, rounded, wine colored lesion, of 3x2x2 cm. The results of the biopsy confirmed the diagnosis of an angiomatous malformation (cavernoma). Surgery is the ideal treatment for these types of lesions and the spine magnetic resonance is an useful study to diagnose and to treat those affected.