Tripanosomíase americana (doença de Chagas) em ratos e camundongos convencionais e isentos de germes

Germfree (GF) and conventional (CV) CFW (LOB) mice and Wistar and Sprague-Dawley rats were infected with Trypanosoma cruzi. The disease was more severe in the GF than in the CV animals as revealed by: (1) an earlier and more intense parasitemia; (2) a more precocious mortality; (3) a twice enlarged spleen: (4) a more intense cell and tissue parasitism; (5) visceral signs of cardiac failure.Camundongos CFW (LOB) e ratos Wistar e Sprague-Dawley isentos de germes (GF) e convencionais (CV) foram infectados com Trypanosoma cruzi. A doença foi mais grave nos animais GF do que nos CV, o que foi demonstrado por: (1) uma parasitemia mais precoce e mais intensa: (2) uma mortalidade mais precoce: (3) baço duas vezes maior; (4) um parasitismo celular e tissular mais intenso; (5) sinais viscerais de insuficiência cardíaca

I Congreso Hispano-Americano de Nefrologia

Primeríssim primer pla d'un edifici d'habitatges al carrer Argenter, 2. El seu nivell de catalogació és el B

Pseudoneoplastic lesions of the testis and paratesticular structures

Pseudotumors or tumor-like proliferations (non-neoplastic masses) and benign mimickers (non-neoplastic cellular proliferations) are rare in the testis and paratesticular structures. Clinically, these lesions (cysts, ectopic tissues, and vascular, inflammatory, or hyperplastic lesions) are of great interest for the reason that, because of the topography, they may be relevant as differential diagnoses. The purpose of this paper is to present an overview of the pseudoneoplasic entities arising in the testis and paratesticular structures; emphasis is placed on how the practicing pathologist may distinguish benign mimickers and pseudotumors from true neoplasia. These lesions can be classified as macroscopic or microscopic mimickers of neoplasia