- MR Imaging of IgG4-Related Disease in the Head and Neck and Brain
Autoimmune pancreatitis, sclerosing cholangitis and sialoadenitis, retroperitoneal and mediastinal fibrosis, and insterstitial pneumonia are all IgG-4 related disorders. This short article discusses the head and neck manifestations of this disease: orbital pseudotumor and lacrimal gland, cranial nerve, and pituitary involvement. Intracranially, the dura may be also affected. All of these lesions were contrast-enhancing and T2 dark, findings to be kept in mind so that one can suggest their etiology.
- Efficacy and Safety of Flow Diversion for Paraclinoid Aneurysms: A Matched-Pair Analysis Compared with Standard Endovascular Approaches
These seasoned investigators sought to evaluate the efficacy and safety of flow-diverting devices for the treatment of complex paraclinoid aneurysms in 21 patients and compared their results with historical matched controls treated at their institution. Aneurysm size, location, risk factors, and comorbidities were equal for both groups. In the hands of these authors, flow diverters achieved a higher rate of aneurysm obliteration when compared with other treatments and did not show an increased rate of complications.
- Association between Carotid Artery Plaque Type and Cerebral Microbleeds
This article explores the relationship between brain microbleeds and the type of plaque occurring in the carotid arteries of these patients. The authors assessed the plaques using CT and brain MRI with blood-sensitive gradient-echo sequences (they did not use SWI). Thirty percent of patients showed microbleeds; one-half were symptomatic. A statistically significant association between cerebral microbleeds and fatty carotid plaques was found.
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