Nádia Mendonça

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The Epstein-Barr Virus (EBV) is consistently found in tumor cells of Burkitt's lymphoma (BL) endemic in central Africa and malaria is considered a pathogenic cofactor. In contrast, fewer than 20% of BL cases occurring in Western countries are EBV-associated. We have investigated 54 BL cases from Bahia, a tropical region of Northeast Brazil, for expression(More)
A 7-month-old boy had a giant pigmented lesion involving the trunk and thighs that exhibited many hyperpigmented hairy and verrucous nevi. One of the nevi ulcerated and on histological examination consisted of pleomorphic rhabdomyosarcoma cells that stained for muscle-specific actin (HHF-35), desmin, and myoglobin. Around the tumor, in the dermis, benign(More)
Twenty-two cases of treated Wilms tumor with more than two years of follow-up were classified according to Beckwith (favorable and unfavorable histology) and to Jereb & Sandstedt (histologic types I, II and III). The authors found a good correlation between histologic types I and II and prognosis (72% of the children with type I were free of tumor and of(More)
The kinetic properties of a microsomal gill (Na+,K+)-ATPase from the freshwater shrimp, Macrobrachium olfersii, acclimated to 21 per thousand salinity for 10 days were investigated using the substrate p-nitrophenylphosphate. The enzyme hydrolyzed this substrate obeying cooperative kinetics at a rate of 123.6+/-4.9 U mg-1 and K0.5=1.31+/-0.05 mmol L-1.(More)
Most cases of pulmonary arteriovenous malformations occur in patients with hereditary hemorrhagic telangiectasia. It is a rare disease that may present with strokelike symptoms in young patients. With the development of occlusion devices, percutaneous embolization has become the treatment of choice. We report a case of a 33 year-old man with a history of(More)
An 8-year-old boy was seen with a cutaneous Ki-1 anaplastic, large cell lymphoma with multiple lesions. Some of the lesions showed spontaneous regression. During more than seven years of disease no systemic involvement was observed, but recurrent, self-healing lesions did appear. Histopathologic examination of five lesions revealed a variety of findings,(More)
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