Los quistes óseos aneurismáticos son muy poco frecuentes en su localización craneal. Presentamos un paciente de 23 años de edad con un quiste aneurismático frontal de grandes proporciones y largo tiempo de evolución. Las características del quiste en la RNM -lesión expansiva ósea multiloculada y con niveles líquidosson casi patognomónicas y facilitan su diagnóstico preoperatorio. La cirugía radical fue curativa en este paciente.
Aneurysmal bone cysts are very rare in the calvaria. We are reporting a 23 year old white male with a very large right frontal aneurysmal bone cyst and a large follow-up period. The MRI findings -a multiloculated expansive tumor with fluid levels inside- are almost pathognomonic for this lesion. Radical surgery was curative for this patient.
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