Ana Caparrini

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Superoxide dismutase (EC has been assayed by a spectrophotometric method based on the inhibition of a superoxide-driven NADH oxidation. The assay consists of a purely chemical reaction sequence which involves EDTA, Mn(II), mercaptoethanol, and molecular oxygen, requiring neither auxiliary enzymes nor sophisticated equipment. The method is very(More)
Sclerosing epithelioid fibrosarcoma (SEF) is an uncommon tumor originally described in soft tissues. We report a case of SEF primary of the left iliac bone in a 42-year-old woman. The tumor was grossly well circumscribed. The histologic examination disclosed a hypocellular neoplasm with densely hyalinized stroma. It was composed predominantly of(More)
Kikuchi-Fujimoto disease (KFD) is a histiocytic necrotizing lymphadenitis found mainly in young women. Patients typically present with cervical lymphadenopathy and fever and follow almost always a benign course with excellent outcomes. The etiology of KFD remains unknown and controversial although several viruses have been associated with this disease. One(More)
BACKGROUND Serum tissue polypeptide specific antigen (TPS) is widely used as a tumor proliferation marker. There is some evidence of an increase in serum TPS in benign liver diseases. The aim of the study was to evaluate serum TPS levels in alcoholics. METHODS Seventy-seven alcoholics (64 men and 13 women) admitted to the hospital with ethanol withdrawal(More)
Lichen planus is an inflammatory disease of unknown etiology which may affect the esophagus. Patients with esophageal lichen planus are usually elderly women. The most frequent symptoms are dysphagia and odynophagia. There is usually concomitant oral involvement in cases of esophageal lichen planus. Endoscopic findings include erosions, exudates and(More)
A 30-year-old male with a past history of nodular lymphocyte predominance Hodgkin's disease in apparent complete remission for two years received a liver transplantation because of fulminant liver failure. Histopathological examination of the explanted liver showed massive infiltration by Hodgkin's disease. In spite of a nodal recurrence of Hodgkin's(More)
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