Osificación heterotópica de cicatriz de laparotomía / Heterotopic ossification in laparotomy scar

Se presenta el caso de un paciente masculino de 54 años de edad operado en dos ocasiones por adenocarcinoma gástrico, a quien se le encontró una masa ósea de la cicatriz de la línea media abdominal que fue resecada. El análisis histológico confirmó una formación ósea madura. Este hallazgo llama la atención sobre la formación ósea en las cicatrices quirúrgicas. Debe hacerse diagnóstico diferencial con recidivas metastásicas de la cicatriz quirúrgica de aparición posterior a cirugía abdominal por cáncer. Se analizó la patogenia según la literatura especializada. El objetivo del trabajo fue presentar una entidad poco frecuente y revisar las teorías etiopatogénicas actuales de esta condición morbosa(AU)

A case is reported of a 54-year-old male patient operated twice for gastric adenocarcinoma, who was found to have a bone mass of the midline abdominal scar that was removed. Histological analysis confirmed mature bone formation. This finding draws attention to bone formation in surgical scars. Differential diagnosis should be made with metastatic relapses of the surgical scar that appears after abdominal surgery for cancer. Pathogenesis was analyzed according to the specialized literature. The objective of this study was to present a rare entity and to review current etiopathogenic theories of this morbid condition(AU)

[Effects of betamethasone and diclofenac-Na on sulfur mustard induced conjunctival epithelial and goblet cells injuries of rabbits in acute phase]

Sulfur mustard, Bis [2-chlorethy1] sulfide [HD], is one of the first chemical warfare agents to be used on a large scale. Anti inflammatory treatments might have the potential to prevent some aspects of the primary development of HD-induced lesions. The aim of the present study was to evaluate treatment effects of topically applied betamethasone [B] and diclofenac-Na [D] on the conjunctival epithelial lesions following HD exposure. A total of 36 rabbits were used. Animals were randomly divided to three control groups: [1] normal; [2] solution; [3] HD and three experimental groups: [4] betamethasone; [5] diclofenac-Na and [6] betamethasone-diclofenac-Na [BD]. In each group six animals were examined. Right eye of all animals was selected for experiment. In the experimental groups betamethasone and diclofenac-Na were applied after using HD solution. Application of drugs was performed 3 times a day for 2 weeks. Slit-lamp examinations were performed before exposure and subsequently at days 1, 2, 5, 7, and 14 by professional ophthalmologists. Animals were sacrificed after two weeks with chloroform. The eyes were enucleated. Specimens of palpebra were obtained for histological examination. There was not any significant difference between normal and solution groups. HD caused a significant decrease in goblet cells and cell infiltration in conjunctiva, injection and chemosis. All experimental groups were better than the HD group. Betamethasone in combination with diclofenac-Na was more effective than betamethasone and diclofenac-Na alone in decreasing eye injuries. Combination of betamethasone and diclofenac-Na are potential candidates for the treatment of ocular lesions following HD exposure

Enxertos homólogos de esclera e dura-mater em olhos de coelhos: análise histopatoógica comparativa / Homologous sclera and dura mater grafts in rabbiteyes: a comparative histopathological analysis

Para analisar comparativamente, qualitativa e semiquantitativamente, a reação tecidual ao emprego de enxertos homólogos de esclera e dura-máter em olhos de coelhos, foram realizadas cirurgias experimentais em 39 coelhos albinos fêmeas da raça Nova Zelândia. Os olhos foram enucleados e amostras foram colhidas em duas, seis e 12 semanas após o experimento. O enxerto de dura-máter mostrou intensa reabsorção e progressiva substituição por tecido conjuntivo frouxo. O enxerto de esclera mostrou discreta reabsorção na periferia com formação de membrana fibrosa, integrando este à esclera do hospedeiro /A comparative, qualitative and semi-quantitative analysis was made of the tissular reaction to the use of homologous grafts of sclera and dura mater in rabbit eyes. Experimental surgeries were performed in 39 female, albino New Zealand rabbits. The eyes were enucleated and samples collected two, six and 12 weeks after the experiment. The dura mater graft showed intense absorption and progressive substitution by loose connective tissue. The sclera graft presented a discrete absorption in the periphery with formation of a fibrous membrane, becoming integrated with the sclera of the host...

Estados histopatológicos de apendicitis Hospital "Eugenio Espejo", Quito

Se realizo un estudio retrospectivo, en el hospital Eugenio Espejo de Quito durante el períodp de 1987 a 1991. en el que analizamos los expedientes histopatológicos, encontrándose que el grupo más afectado fue el sexo masculino, siendo la edad de 21 a 30 años la mayor incidencia, al igul que los reportes de la literatura . La variedad histopatológica más frecuente encontrada es la apendicitis aguda supurada con el 25.30 por ciento con mayor número de casos entre varones. Seguida de la apendicitis aguda con el 24.09 por ciento. La gangrenosa con el 16.87 por ciento la apendicitis amebiana comprende el 0.7 por ciento. Encontramos ademas un porcentaje del 41.7 por ciento de periapendicitis con presentación más frecuente en mujeres 63.41 por ciento dato que concuerda con lo reportado por otros autores.

Criptosporidium en niños desnutridos graves / Crystopotidium in severe malnourished children

Trabajo prospectivo, realizado para establecer la incidencia de infección intestinal por Criptosporidium en niños desnutridos graves, internados en el Centro de Pediatria Albina R. de Patiño, entre el mes de Junio de 1989 al mes de Diciembre de 1990. Se hizo la busqueda en disposiciones por tacto rectal, obteniendo la muestra e inmediatamente hacer la tinción de Zielh Neelsen modificado. Se tomo 45 muestras de las cuales fueron positivas 22 correspondiendo al 15 como consecuencia se debera tomar en cuenta el criptosporidium como agente causal de la diarrea en desnutridos graves.