RESUMO
Epidermoïd cysts are well documented. Whenever possible, surgery is always necessary. Intradiploic epidermoïd cyst are uncommon, especially in the occipital bone. Ultrasonography (US) may be useful and used instead of radiographs. As demonstrated in intracranial forms, diffusion-weighted MR Imaging (MRI) sequence can be useful for the diagnosis of epidermoid tumors and postoperative assessment of residual tumor. We propose to illustrate the usefulness of US and MRI in depicting an intradiploic epidermoïd cyst in a 27-year-old woman.
Assuntos
Cisto Epidérmico/diagnóstico por imagem , Cisto Epidérmico/patologia , Imageamento por Ressonância Magnética , Osso Occipital , Adulto , Doenças Ósseas/diagnóstico por imagem , Doenças Ósseas/patologia , Feminino , Humanos , UltrassonografiaRESUMO
Paradoxical embolism (PE) is an uncommonly diagnosed cause of unexplained ischemic cerebral event. Its diagnosis is based on established criteria and the failure to identify an arterial or cardiac embolic source. The association between patent foramen ovale (PFO) and cryptogenic stroke has repeatedly been demonstrated in clinical studies. Transesophageal contrast echocardiography is the best diagnostic test. Surgical or endovascular PFO closure is recommended for the long-term prevention of PE.