1/315. A giant dissecting aneurysm mimicking serpentine aneurysm angiographically. Case report and review of the literature.Intracranial dissecting and giant serpentine aneurysms are rare vascular anomalies. Their precise cause has not yet been completely clarified, and the radiological appearance of such lesions can be different in each case according to the effect of hemodynamic stress on a pathologic vessel wall. For berry aneurysms, available evidence overwhelmingly favors their causation by hemodynamically induced degenerative vascular disease and there is an obvious need to determine the hemodynamic parameters most likely to induce the precursor atrophic lesions. In this study, a case of a giant dissecting aneurysm angiographically mimicking serpentine aneurysm of the right ophthalmic artery is reported and the relevant literature is reviewed to investigate the pathological characteristics and pathogenesis of this lesion. In the present case, radiological investigation of the lesion suggested a serpentine aneurysm, but the diagnosis was corrected to dissecting aneurysm subsequent to the pathological examination of the resected aneurysm. A giant dissecting aneurysm angiographically mimicking serpentine aneurysm and developing as the result of a circumferential dissection located between the internal elastic lamina and media is of particular interest when the etiology of these aneurysms is considered. To our knowledge this is the first report on intracranial dissecting aneurysm mimicking serpentine aneurysm angiographically. Our case illustrates the importance of careful serial section studies for a better understanding of the vascular pathology underlying the processes involved in intracranial serpentine aneurysms. We conclude that serpentine, dissecting and berry aneurysms may all arise by way of similar pathophysiological mechanisms.- - - - - - - - - - ranking = 1keywords = aneurysm (Clic here for more details about this article) |
2/315. Tissue response of a small saccular aneurysm after incomplete occlusion with a Guglielmi detachable coil.A 49-year-old woman had a small saccular aneurysm that was incompletely occluded with a Guglielmi detachable coil (GDC). She died from rupture of another aneurysm 42 days after the treatment. autopsy for the embolized aneurysm revealed no neoendothelium at the aneurysmal neck, but an organized thrombus was observed limited to the periphery of the aneurysmal lumen. Although isolation of the aneurysm was not apparent, loose embolization with this method may help to reinforce the aneurysmal wall.- - - - - - - - - - ranking = 0.5keywords = aneurysm (Clic here for more details about this article) |
3/315. An aneurysm involving the axillary artery and its branch vessels in a major league baseball pitcher. A case report and review of the literature.baseball pitchers appear to be prone to aneurysms of the axillary artery and its branches. The cause is probably related to repetitive compression of or tension on the vessels at the level of the pectoralis minor muscle and the humeral head, which is exacerbated by the pitching motion. The incidence of aneurysms of the axillary artery and its branches among pitchers and other athletes is not known, nor is it clear whether pitchers who are at high risk of vascular injury can be identified before irreversible damage to the vessels has occurred. Perhaps patients who have documented compression or occlusion of the vessel with the arm in the abducted, externally rotated position are at higher risk. Screening pitchers to identify those with axillary artery compression, aneurysm, or thrombosis has also not been shown to be effective. Certainly, many pitchers will have some level of compression of the axillary artery with their arm in the pitching position but will never develop any clinical abnormality requiring treatment. Screening would therefore probably lead to a high false-positive rate. It is clear, however, that pitchers who complain of ischemia-type symptoms such as early fatigue or who have evidence of emboli require a complete evaluation to rule out any abnormality of the axillary artery or one of its branches. Orthopaedic surgeons who see pitchers and other athletes involved in repetitive overhead motions need to be aware of this disorder so that they order the appropriate tests and obtain a vascular consultation--and make a prompt diagnosis. Treatment will vary depending on the type of lesion and on which vessel or vessels are involved, and should be decided on by the team of surgeons treating the patient.- - - - - - - - - - ranking = 0.31818181818182keywords = aneurysm (Clic here for more details about this article) |
4/315. Treatment of popliteal artery aneurysms with uncovered Wallstents.We report two patients with acutely thrombosed popliteal artery aneurysms that were successfully treated with a combination of thrombolytic therapy and placement of noncovered Wallstents.- - - - - - - - - - ranking = 0.22727272727273keywords = aneurysm (Clic here for more details about this article) |
5/315. Spontaneous thrombosis of a pseudoaneurysm complicating pancreatitis.patients with a visceral aneurysm are at high risk for acute transpapillary, intra-, or retroperitoneal hemorrhage, necessitating either surgical or endovascular therapy. We report an instance of spontaneous thrombosis of a pseudoaneurysm complicating pancreatitis before endovascular treatment could be performed. causality and the literature of spontaneous thrombosis in pseudoaneurysms are discussed.- - - - - - - - - - ranking = 0.4915634833326keywords = aneurysm, pseudoaneurysm (Clic here for more details about this article) |
6/315. Renal involvement of thrombotic thrombocytopenic purpura: special reference to the glomeruloid structures.We report the case of a 9-year-old girl with biopsy-proven renal thrombotic microangiopathy in thrombotic thrombocytopenic purpura (TTP), with particular reference to the glomeruloid structures. The renal biopsy sample from this TTP patient revealed platelet thrombus deposition, a glomeruloid structure and aneurysm with relative sparing of the glomeruli. The glomeruloid structure displayed a proliferation of mainly capillary-sized channels lined by factor viii-related, antigen-positive plump endothelial cells embedded in the edematous connective tissue. These glomeruloid vessels communicated with the aneurysmal segment at the end portion of the arteriolar branch. We believe that the glomeruloid structures in TTP represent not merely organization or recanalization of thrombus but rather active angiogenesis through aneurysmal dilation in the arteriolized vessel, probably initiated by platelet agglutination.- - - - - - - - - - ranking = 0.13636363636364keywords = aneurysm (Clic here for more details about this article) |
7/315. Identification of cardiac masses and abnormal blood flow patterns with harmonic power Doppler contrast echocardiography.Power Doppler is an ultrasound technique that color-encodes the change in amplitude of the ultrasound signal, which reflects changes in the position of scatterers between ultrasound pulses. Power Doppler can be used with echocardiographic contrast agents in a harmonic imaging mode to opacify a cardiac chamber. The opacification of a cardiac chamber can aid in visualizing the silhouette of intracardiac masses and displaying blood flow patterns. Four cases are presented that demonstrate the use of harmonic power Doppler to aid in the identification of a left ventricular apical thrombus, a left atrial thrombus, and a left ventricular pseudoaneurysm.- - - - - - - - - - ranking = 0.074351489646342keywords = aneurysm, pseudoaneurysm (Clic here for more details about this article) |
8/315. Surgical repair of type B aortic dissection complicated by early postoperative lung vein and artery thrombosis.A 24-year old man with marfan syndrome previously operated for abdominal aortic aneurysm and type A dissection sustained a type B dissection. He underwent graft replacement of the descending and upper abdominal aorta, complicated by infarction of the left upper lobe and lobectomy was carried out. The postoperative course was uneventful. The mechanism for this rare complication is discussed.- - - - - - - - - - ranking = 0.045454545454545keywords = aneurysm (Clic here for more details about this article) |
9/315. Spontaneous closure and thrombosis of a ductal aneurysm in a neonate.The natural history of a ductal aneurysm detected prenatally is presented. Neurologic concerns in the neonate and absence of cardio-respiratory compromise permitted serial echo demonstration of constriction, thickening and subsequent closure with formation of thrombus in the aneurysm.- - - - - - - - - - ranking = 0.27272727272727keywords = aneurysm (Clic here for more details about this article) |
10/315. Aortic pseudoaneurysm after ligation of aneurysmal saphenous vein graft.After an aneurysmal saphenous vein graft was ligated and divided at reoperation, the proximal stump continued to enlarge, rather than occluding by thrombosis, producing an aortic pseudoaneurysm that compressed adjacent cardiac structures. Oversewing the aortosaphenous junction of ligated vein graft remnants will prevent this complication.- - - - - - - - - - ranking = 0.59903017550444keywords = aneurysm, pseudoaneurysm (Clic here for more details about this article) |
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