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Arachnoid Granulations Mimicking Multiple Osteolytic Bone Lesions in the Occipital Bone
Brain Tumor Research and Treatment ; : 68-72, 2018.
Artigo em Inglês | WPRIM | ID: wpr-717503
ABSTRACT
We report a rare case of arachnoid granulations mimicking multiple osteolytic bone lesions. A 66-year-old woman was admitted to a local clinic for a regular checkup. Upon admission, brain CT showed multiple osteolytic lesions in the occipital bone. These needed to be differentiated from multiple osteolytic bone tumor. Subsequent brain MRI revealed that the osteolytic lesions were isointense to cerebrospinal fluid, hyperintense on T2-weighted image, hypointense on T1-weighted image, and with subtle capsules around the osteolytic lesions that were visible after gadolinium injection. A bone scan revealed no radiotracer uptake. The lesions were in both the transverse sinuses and the torcular herophili. With typical radiological appearances of the lesions, the osteolytic lesions were diagnosed as multiple arachnoid granulations. No further treatment was planned. A 1-year follow-up brain CT scan revealed no change. We should consider the possibility of arachnoid granulations when multiple osteolytic lesions are observed in the occipital bone.
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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Aracnoide-Máter / Encéfalo / Cápsulas / Imageamento por Ressonância Magnética / Tomografia Computadorizada por Raios X / Líquido Cefalorraquidiano / Seguimentos / Seios Transversos / Gadolínio / Osso Occipital Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Idoso / Feminino / Humanos Idioma: Inglês Revista: Brain Tumor Research and Treatment Ano de publicação: 2018 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Aracnoide-Máter / Encéfalo / Cápsulas / Imageamento por Ressonância Magnética / Tomografia Computadorizada por Raios X / Líquido Cefalorraquidiano / Seguimentos / Seios Transversos / Gadolínio / Osso Occipital Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Idoso / Feminino / Humanos Idioma: Inglês Revista: Brain Tumor Research and Treatment Ano de publicação: 2018 Tipo de documento: Artigo