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Splenic artery aneurysms are rare, but still the third most common abdominal aneurysm, after aneurysms of the abdominal aorta and iliac arteries. [2] [3] They may occur in pregnant women in the third trimester and rupture carries a maternal mortality of greater than 50% and a fetal mortality of 70 to 90%.
Splenic infarction is a condition in which blood flow supply to the spleen is compromised, [1] leading to partial or complete infarction (tissue death due to oxygen shortage) in the organ. [2] Splenic infarction occurs when the splenic artery or one of its branches are occluded, for example by a blood clot .
It is unclear whether Mönckeberg's arteriosclerosis is a distinct entity or forms part of a spectrum of vascular calcification that includes atherosclerosis and calcification in the inner layer of the artery wall (tunica intima), calcification of the internal elastic lamina, calcification of cardiac valves and widespread soft tissue ...
[11] [12] Symptoms of a subarachnoid hemorrhage differ depending on the site and size of the aneurysm. [12] Symptoms of a ruptured aneurysm can include: [13] a sudden severe headache that can last from several hours to days; nausea and vomiting; drowsiness, confusion and/or loss of consciousness; visual abnormalities; meningism; dizziness
cardiology, thoracic surgery: aortic arch dilatation or aneurysm, mediastinal tumour: left displacement of trachea elicits palpable pulsation of same Carey Coombs murmur: Carey Coombs: cardiology, rheumatology: rheumatic fever: mid-diastolic rumble Carnett's sign: John Berton Carnett: primary care, surgery: abdominal mass and/or pain
Macroscopically, splenosis manifests as individual pieces of reddish-blue tissue with variable shape, which can be as few as one and as many as 300, [4] mostly in the abdominal cavity, and varying in size from a few millimeters to as large as 12 cm. Due to the limited blood supply to these nodules, the typical size of splenic implants is ...
Watershed stroke symptoms are due to the reduced blood flow to all parts of the body, specifically the brain, thus leading to brain damage. Initial symptoms, as promoted by the American Stroke Association, are FAST, representing F = Facial weakness (droop), A = Arm weakness (drift), S = Speech difficulty (slur), and T = Time to act (priority of intervention).
The size of these blood vessels varies from 1–5 mm (more than 10 times the normal diameter of mucosal capillaries). Pulsation from the enlarged vessels leads to focal pressure that causes thinning of the mucosa at that location, leading to exposure of the vessel and subsequent hemorrhage. [1]