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Adrenal hemorrhage is classified by its cause, traumatic or non-traumatic. Trauma, either by blunt force or penetration, accounts for 80% of the cases. [10] Up to a quarter of severely injured patients suffer from adrenal hemorrhage. [11]
Adrenal hemorrhage characteristic of the Waterhouse–Friderichsen syndrome has been identified in several autopsies of patients who died of sepsis secondary to capnocytophaga canimorsus infection. [8] Viruses may also be implicated in adrenal problems: Cytomegalovirus can cause adrenal insufficiency, [9] especially in the immunocompromised.
T2*-weighted imaging of the brain 26 weeks after subarachnoid hemorrhage, showing hemosiderin deposits as hypointense areas. [1] T 2 *-weighted imaging is an MRI sequence to quantify observable or effective T 2 (T2* or "T2-star"). In this sequence, hemorrhages and hemosiderin deposits become hypointense. [2]
Central pontine myelinolysis; Other names: Osmotic demyelination syndrome, central pontine demyelination: Axial fat-saturated T2-weighted image showing hyperintensity in the pons with sparing of the peripheral fibers, the patient was an alcoholic admitted with a serum Na of 101 treated with hypertonic saline, he was left with quadriparesis, dysarthria, and altered mental status
Susceptibility weighted imaging (SWI), originally called BOLD venographic imaging, is an MRI sequence that is exquisitely sensitive to venous blood, hemorrhage and iron storage. SWI uses a fully flow compensated, long echo, gradient recalled echo (GRE) pulse sequence to acquire images.
MRI scans showing hyperintensities. A hyperintensity or T2 hyperintensity is an area of high intensity on types of magnetic resonance imaging (MRI) scans of the brain of a human or of another mammal that reflect lesions produced largely by demyelination and axonal loss.
The cause of adrenal cancer isn't known. Adrenal cancer most often affects adults in their 40s and 50s and children younger than 5, but it can occur at any time. "When adrenal cancer is found ...
Axial fat suppressed T2 weighted MRI image showing hyperintense signal and enlargement of the left thigh adductor muscle group in diabetic myonecrosis. Axial fat suppressed post gadolinium contrast enhancement MRI image showing absent enhancement in the left thigh adductor muscles centrally indicating necrosis in diabetic myonecrosis.