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Acephalgic migraine (also called migraine aura without headache, amigrainous migraine, isolated visual migraine, and optical migraine) is a neurological syndrome.It is a relatively uncommon variant of migraine in which the patient may experience some migraine symptoms such as aura, nausea, photophobia, and hemiparesis, but does not experience headache. [1]
Normally, erythrocytes are stored and removed from the circulating blood by the spleen, including the removal of damaged erythrocytes. However, after a splenectomy the lack of presence of the spleen means this function cannot be carried out so damaged erythrocytes will continue to circulate in the blood and can release substances into the blood.
The most frequent cause of autosplenectomy is sickle cell anemia [10] which causes progressive splenic hypofunction over time. Increased deoxygenation causes sickling of red blood cells, which adhere to the spleen wall and splenic macrophages causing ischemia . [ 2 ]
24–48 hours following presentation with mild viral symptoms [2] Causes: Exposure to pathogens following splenectomy or asplenia: Risk factors: Splenectomy in the past 2–3 years, removal of spleen for hematological reasons, being under the age of 2 [2] Prognosis: Almost invariably fatal without treatment [2]
According to the Mayo Clinic, when a spleen is removed, other organs generally take over its functions, but along with the higher risk of serious infections, a patient without a spleen has ...
Fever is the most common symptom of splenic abscess, followed by abdominal pain and a tender mass on palpation of the left upper quadrant of the abdomen. The common signs and symptoms described of a splenic abscess include the triad of fever, left upper quadrant tenderness, and leukocytosis is present only in one-third of the cases.
The diagnosis of a migraine is based on signs and symptoms. [26] Neuroimaging tests are not necessary to diagnose migraine, but may be used to find other causes of headaches in those whose examination and history do not confirm a migraine diagnosis. [115] It is believed that a substantial number of people with the condition remain undiagnosed. [26]
We do not comment on specific patient cases or active litigation." According to the Cleveland Clinic, the typical human spleen is roughly the size of an avocado, and the typical human liver is ...
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