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At least 415 records · Page 23Linked to original sources
PubMed2006

Enhancement of splenic glucose metabolism during acute malarial infection: correlation of findings of FDG-PET imaging with pathological changes in a primate model of severe human malaria.

In the current study, to elucidate the clinical features of severe malaria, we performed whole-body positron emission tomography (PET) with (18)F-fluorodeoxyglucose (FDG) of Plasmodium coatneyi-infected acute-phase Japanese macaques. The infected monkeys clearly exhibited increase in splenic FDG uptake indicating marked enhancement of glucose metabolism. The standardized uptake values (SUVs) of the spleen in the infected monkeys were significantly higher than those in the uninfected monkey. At autopsy, splenomegaly was clearly present in all infected monkeys, and histopathologic findings included hyperplasia of lymphoid follicles in white pulp, a large number of activated macrophage, and congestion of parasitized red blood cells (PRBCs) and malaria pigments in red pulp. We suggest that increase in splenic glucose uptake may thus be closely related to activation of splenic clearance system against blood-stage malarial parasites.

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PubMed2006

Temporal giant cell reparative granuloma: a reappraisal of pathology and imaging features.

We report a case of large temporal giant cell reparative granuloma in a 72-year-old man. MR imaging depicted a right temporal expansile multiloculated lesion, with hyper- and hypointense signal areas on T2-weighted images, heterogeneously enhancing after gadolinium administration. Cortical thinning and bone remodeling of the temporal squamous portion were better seen on CT. The patient underwent surgery, and the diagnosis was achieved by the correlation of imaging, histologic, and laboratory findings.

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PubMedDate not supplied

Multicystic cavernous hemangioma of the liver: report of a case including diagnostic imaging and pathologic correlation.

The case of a multicystic hemangioma in the liver of a 78-year-old woman is reported. The patient complained of upper abdominal pain and had been seen at a local hospital a few months prior to this admission. An endoscopic examination of the stomach revealed an active gastric ulcer, and ultrasonography (US) of the upper abdomen also incidentally detected a liver tumor. After treating the gastric ulcer, she was then referred to Ryukyu University Hospital in January 1997. US revealed a 3.5-cm, oval-shaped, echogenic tumor with multiple cystic areas in the right lobe of the liver. A CT scan demonstrated a hypodense tumor, that was not enhanced on dynamic CT. Angiography showed a hypovascular tumor that appeared to be a multicystic tumor of heterogeneous high intensity on T2-weighted MRI. The tumor measured 3.5 cm x 3.5 cm in size and was multicystic with a fibrous septum and serous fluid. Histologically the tumor was determined to be cavernous hemangioma of the liver. Atypical hemangiomas should be included in the differential diagnosis when hemangiomas show multicystic features.

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