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The aim of this study was to present a case of disruption of the blood-brain barrier during the coronary and lower extremity angiographies with radiological and clinical findings. This condition was secondary to intraarterial use of a nonionic, monomeric contrast medium. A total of 450 cc contrast media was used. Computed tomography examination showed contrast enhancement of the right occipital and frontoparietal cortical regions, which returned to normal one day after. The patient also fully recovered from the neurological symptoms within 24 h. We discussed the possible mechanism for blood-brain barrier disruption in this case.

Intravascular foreign bodies may be introduced into the circulation as a complication of minimally invasive or interventional techniques, or during cardiac valve surgery. Prosthetic heart valve leaflets have been rarely described as intravascular foreign bodies. Herein we report a case of prosthetic heart valve leaflet embolization to the aortic bifurcation with computed tomography and ultrasonography findings, and the importance of radiographic imaging in the localization of missing leaflet fragment is pointed out.

Intravascular foreign bodies may be introduced into the circulation as a complication of minimally invasive or interventional techniques, or during cardiac valve surgery. Prosthetic heart valve leaflets have been rarely described as intravascular foreign bodies. Herein we report a case of prosthetic heart valve leaflet embolization to the aortic bifurcation with computed tomography and ultrasonography findings, and the importance of radiographic imaging in the localization of missing leaflet fragment is pointed out.

The presence of pneumocephalus without a history of intracranial or intrathecal procedures is a significant radiographic finding. Although pneumocephalus means a violation of the dural barrier or the presence of infection, intravascular pneumocephalus is different from intraparenchymal pneumocephalus and its benign nature must be known in the presence of intravenous catheterization. Herein, we present a case of iatrogenic intravascular pneumocephalus with CT findings. To our knowledge, there are only a few reported cases of iatrogenic intravascular pneumocephalus in the literature. Careful intravenous catheterization and diagnosis of the condition on imaging helps to prevent unnecessary treatment procedures.

Extrapelvic endometriosis is not uncommon but hepatic endometrioma is extremely rare. Ultrasound, CT and MR features of hepatic endometrioma are discussed and the literature is reviewed in this report.