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Se informa acerca de un caso de leiomiosarcoma de la vena renal. Se efectúa una revisión de la bibliografía existente sobre el tema. Se trata de una paciente de 55 años de edad, que presenta dolor lumbar izquierdo de siete meses de evolución. Los estudios practicados muestran una hidronefrosis en el urograma de excreción; en la TAC se visualiza una masa pararrenal en íntimo contacto con el pedículo vascular que se impregna con el material de contraste. El tratamiento practicado consiste en una nefrectomía radical. El informe anatomopatológico es compatible con un leiomiosarcoma de la vena renal. Se realiza tratamiento adyuvante con radioterapia de alto voltaje. A los dos años, se detectan metástasis hepáticas, pulmonares y mamarias por lo que se inicia quimioterapia con resultado incierto, ya que se encuentra cursando en la actualidad dicho tratamiento. Se resalta la excepcionalidad de esta variante de tumor, la dificultad diagnóstica clínica y el pronóstico desfavorable(AU)

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RESUMEN

Se informa acerca de un caso de leiomiosarcoma de la vena renal. Se efectúa una revisión de la bibliografía existente sobre el tema. Se trata de una paciente de 55 años de edad, que presenta dolor lumbar izquierdo de siete meses de evolución. Los estudios practicados muestran una hidronefrosis en el urograma de excreción; en la TAC se visualiza una masa pararrenal en íntimo contacto con el pedículo vascular que se impregna con el material de contraste. El tratamiento practicado consiste en una nefrectomía radical. El informe anatomopatológico es compatible con un leiomiosarcoma de la vena renal. Se realiza tratamiento adyuvante con radioterapia de alto voltaje. A los dos años, se detectan metástasis hepáticas, pulmonares y mamarias por lo que se inicia quimioterapia con resultado incierto, ya que se encuentra cursando en la actualidad dicho tratamiento. Se resalta la excepcionalidad de esta variante de tumor, la dificultad diagnóstica clínica y el pronóstico desfavorable

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Actinomycosis is a chronic infectious disease, caused by an anaerobic gram positive microorganism, the actinomyces israelii. It grows by continuity toward adjacent organs, with formation of dense masses of woody tissue, producing draining abscesses and fistulae. General symptoms of this disease are fever, chills, in association with symptoms proper of each localization. The diagnosis is made when the "sulphur granules" that are characteristic of the pus of actinomycosis are found.

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Actinomycosis is a chronic infectious disease, caused by an anaerobic gram positive microorganism, the actinomyces israelii. It grows by continuity toward adjacent organs, with formation of dense masses of woody tissue, producing draining abscesses and fistulae. General symptoms of this disease are fever, chills, in association with symptoms proper of each localization. The diagnosis is made when the [quot ]sulphur granules[quot ] that are characteristic of the pus of actinomycosis are found.

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A group of 159 dogs divided in 8 sub-groups were studied, in regard to pancreatitis, the purpose of the study was to investigate the participation of the automatic nervous system in the course of acute pancreatitis. The procedures and the results were as follows: 1. Pancreatitis was induced in two forms: a) Injection of gallbladder bile, from the same animal to the pancreatic duct. b) Blind duodenal loop with exclusion of the distal duodenum through the pylorus. In both cases acute pancreatitis was obtained. Fat necrosis was predominant in type a, and hemorrhagic lesions in type b. 2. The anesthetic block of the celiac plexus controlled the pain and shock. The animals were in good general conditions but there were no changes in the pathological process of the pancreas. The same results were noted in surgical resections of splanchnic trunks. 3. When the surgical resections of splanchnic nerves was followed by a waiting period of 20 days from the production of pancreatitis there were no changes in the gland. 5. Vagotomy previous to pancreatitis does not have protector effects in the induction of pancreatitis. 6. Continuous perfusion of E.V. novocaine was of extreme utility. The animals remained without pain and the process remained stable when it was given in the initial face of edema. 7. The enzyme inhibitor (Trasylol) given in the first 24 hs. does not prove to be valuable. Due to the fermentative derangement the condition of the animals was better maintained in relation to the comparative animals.

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RESUMEN

A group of 159 dogs divided in 8 sub-groups were studied, in regard to pancreatitis, the purpose of the study was to investigate the participation of the automatic nervous system in the course of acute pancreatitis. The procedures and the results were as follows: 1. Pancreatitis was induced in two forms: a) Injection of gallbladder bile, from the same animal to the pancreatic duct. b) Blind duodenal loop with exclusion of the distal duodenum through the pylorus. In both cases acute pancreatitis was obtained. Fat necrosis was predominant in type a, and hemorrhagic lesions in type b. 2. The anesthetic block of the celiac plexus controlled the pain and shock. The animals were in good general conditions but there were no changes in the pathological process of the pancreas. The same results were noted in surgical resections of splanchnic trunks. 3. When the surgical resections of splanchnic nerves was followed by a waiting period of 20 days from the production of pancreatitis there were no changes in the gland. 5. Vagotomy previous to pancreatitis does not have protector effects in the induction of pancreatitis. 6. Continuous perfusion of E.V. novocaine was of extreme utility. The animals remained without pain and the process remained stable when it was given in the initial face of edema. 7. The enzyme inhibitor (Trasylol) given in the first 24 hs. does not prove to be valuable. Due to the fermentative derangement the condition of the animals was better maintained in relation to the comparative animals.

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Seven acid glycosidases activities have been measured in normal rat uterus during the oestrus cycle. It has been observed that alpha-fucosidase, alpha-mannosidase, beta-galactosidase, alpha-galactosidase, aryl sulfatase, acid phosphatase and hexosaminidase activities changed cyclically during the oestrus cycle. From onward oestrus to metaoestrus the enzyme activities are in their highest level, but then decline slightly towards the resting one, as the cycle progresses. It is possible that changes in glycosidases content bear a lysosomal relationship, since it is known the increase in the lysosome content of the uterus during the oestrus and metaoestrus. The increased enzyme content could be related to uterus glycoproteins secretion and degradation during the normal oestrus cycle.

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RESUMEN

Seven acid glycosidases activities have been measured in normal rat uterus during the oestrus cycle. It has been observed that alpha-fucosidase, alpha-mannosidase, beta-galactosidase, alpha-galactosidase, aryl sulfatase, acid phosphatase and hexosaminidase activities changed cyclically during the oestrus cycle. From onward oestrus to metaoestrus the enzyme activities are in their highest level, but then decline slightly towards the resting one, as the cycle progresses. It is possible that changes in glycosidases content bear a lysosomal relationship, since it is known the increase in the lysosome content of the uterus during the oestrus and metaoestrus. The increased enzyme content could be related to uterus glycoproteins secretion and degradation during the normal oestrus cycle.

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