The effect of Allium sativum in experimental peritoneal adhesion model in rats

Abstract Purpose: To evaluate the effect of garlic on formation of postoperative adhesions in rats. Methods: Twenty-four Sprague dawley rats were divided into three groups. In Group 1 (sham), laparotomy was performed and stitched up. In Group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and 2 cc of saline was intraperitoneally administered to each rat. In Group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Allium sativum derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum Results: In Group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. Conclusions: No positive outcomes indicating that Allium sativum reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, allium sativum increased the production of free oxygen radicals in the tissue.

Evaluation of peritoneal endometriosis treatment using intralesional acetylsalicylic acid injection in rabbits

PURPOSE: To investigate the efficacy of intralesional 20% aspirin injection for treatment of experimental peritoneal endometriosis. Methods: Peritoneal endometriosis was experimentally induced in forty adult nulligravid female rabbits. On day 30 post-endometriosis induction, rabbits were randomly divided to assess early (10 days) and late (20 days) effects of intralesional injection of physiological saline solution (control groups) in comparison to intralesional injection of 20% bicarbonate aspirin solution (experimental groups) as follows: control group 1 (10 days, n=10); control group 2 (20 days, n=10); experimental group 3 (10 days, n=10); experimental group 4 (20 days, n=10). Resected tissues, including endometriosis foci, were qualitatively (general morphology and signs of inflammatory cells infiltrate, necrosis and apoptosis) and quantitatively (remaining endometriosis area) assessed by histopathological analysis. Results: Extensive necrosis, hemorrhage, apoptosis, and fibrosis were observed in the experimental groups 3 and 4. Groups 1 and 2 presented typical endometrial tissue cysts, respectively. Groups 3 and 4 showed sparse endometrial tissue foci and no endometrial tissue, respectively. Quantitative analysis revealed that aspirin-treated groups 3 and 4 had significantly (p<0.05) smaller remaining endometriosis area, compared to control groups 1 and 2. Conclusion: Intralesional 20% aspirin injection caused total destruction of peritoneal endometriosis foci in rabbits.

Sarcoidosis peritoneal: a propósito de un caso / Peritoneal sarcoidosis: about a case

La sarcoidosis es una enfermedad inflamatoria multisistémica, caracterizada por granulomas no caseificados, de etiología desconocida. Dentro de esta, el compromiso seroso es muy infrecuente. Entre los diagnósticos diferenciales a considerar se encuentran patologías neoplásicas, infecciosas e inflamatorias. El tratamiento de la sarcoidosis peritoneal depende del grado, actividad y extensión de la enfermedad. Se presenta el caso de una paciente de 45 años, que consulta por dolor pélvico y aumento de perímetro abdominal de tres meses de evolución.

Sarcoidosis is a multisystemic inflammatory disease characterized by calcified granulomas of unknown etiology. Within this, the serous commitment is rare. Among the differential diagnoses are considered neoplastic, infectious and inflammatory diseases. Treatment of peritoneal sarcoidosis depends on the degree, activity and extent of the disease. We present the case of a 45 years old patient who consulted for pelvic pain and increased abdominal girth of three months of evolution.

Hidatidosis multiorgánica con compromiso peritoneal: reporte de un caso y revisión de la literatura / Multi-organ hydatidosis with peritoneal involvement: a case report and literature review

La hidatidosis es una parasitosis cuyo agente etiológico es el céstodo del género Echinococcus, siendo las especies más frecuentemente involucradas la E. granulosus y E. multilocularis. Puede afectar a cualquier órgano, aunque con mayor frecuencia se asocia a compromiso hepático y pulmonar. Los hallazgos imagenológicos clásicos en órganos habitualmente comprometidos están ampliamente descritos, no así en localizaciones poco comunes. Presentamos un caso de hidatidosis multiorgánica con compromiso peritoneal y pericárdico, estudiado con ultrasonido y tomografía computada, con revisión de la literatura actualmente disponible al respecto.

Abstract. Hydatidosis is a parasitic disease whose etiologic agent is the tapeworm of the genus Echinococ-cus, the species most frequently involved being E. granulosus and E. multilocularis. It can affect any organ, but most often is associated with liver and lung involvement. The classic imaging findings in organs that are usually involved are fully described, but not so for those in unusual locations. We report a case of multi-organ hydatidosis with peritoneal and pericardial commitment, studied with ultrasound and computed tomography, with a review of the currently available literature regarding this.

Schistosoma mansoni granuloma in late evolutive phase, in a case of tumoral form in man / Granuloma equistossomótico em fase evolutiva tardia, em um caso de forma tumoral no homem

INTRODUCTION: Authors describe human schistosomal granuloma in late chronic phase, from the morphological and evolutionary viewpoints. METHODS: The study was based on a histological analysis of two fragments obtained from a surgical biopsy of peritoneum and large intestine of a 42-year-old patient, with a pseudotumoral form mimicking a peritoneal carcinomatosis associated to the schistosomiasis hepatointestinal form. RESULTS: Two hundred and three granulomas were identified in the pseudotumor and 27 in the intestinal biopsy, with similar morphological features, most in the late chronic phase, in fibrotic healing. A new structural classification was suggested for granulomas: zone 1 (internal), 2 (intermediate) and 3 (external). CONCLUSIONS: Regarding granuloma as a whole, we may conclude that fibrosis is likely to be controlled by different and independent mechanisms in the three zones of the granuloma. Lamellar fibrosis in zone 3 seems to be controlled by matrix mesenchymal cells (fibroblasts and myoepithelial cells) and by inflammatory exudate cells (lymphocytes, plasmocytes, neutrophils, eosinophils). Annular fibrosis in zone 2, comprising a dense fibrous connective tissue, with few cells in the advanced phase, would be controlled by epithelioid cells involving zone 1 in recent granulomas. In zone 1, replacing periovular necrosis, an initialy loose and tracery connective neoformation, housing stellate cells or with fusiform nuclei, a dense paucicellular nodular connctive tissue emerges, probably induced by fibroblasts. In several granulomas, one of the zones is missing and granuloma is represented by two of them: Z3 and Z2, Z3 and Z1 or Z2 and Z1 and, ultimately, by a scar.

INTRODUÇÃO: Os autores descrevem o granuloma esquistossomótico no homem, na fase crônica tardia, do ponto de vista morfológico e evolutivo. MÉTODOS: O estudo baseou-se na análise histológica de dois fragmentos obtidos de biópsia cirúrgica do peritônio e do intestino grosso de um paciente de 42 anos de idade, com a forma pseudotumoral mimetizando carcinomatose peritoneal associada à forma hepatointestinal da esquistossomose. RESULTADOS: Foram identificados 203 granulomas no pseudotumor e 27 na biópsia intestinal, com aspectos morfológicos semelhantes, a maioria na fase crônica tardia, em cura por fibrose. Foi sugerida nova classificação estrutural para os granulomas: zona 1 (interna), zona 2 (intermediária) e zona 3 (externa). CONCLUSÕES: Considerando o granuloma como um todo, concluímos que, provavelmente, a fibrose é comandada por mecanismos diferentes e independentes nas três zonas do granuloma. A fibrose lamelar na zona 3 parece ser comandada pelas células mesenquimais da matriz (fibroblastos e células mioepiteliais) e pelas células do exsudato inflamatório (linfócitos, plasmócitos, neutrófilos, eosinófilos). A fibrose anular na zona 2, composta por conjuntivo fibroso denso, pouco celular na fase avançada, seria comandada pelas células epitelioides que envolvem a zona 1 nos granulomas recentes. Na zona 1, substituindo a necrose periovular, a neoformação conjuntiva inicialmente frouxa, rendilhada, albergando células estreladas ou com núcleos fusiformes, surge um conjuntivo denso, paucicelular, nodular, provavelmente induzido pelos fibroblastos. Em muitos granulomas falta uma das zonas descritas e o granuloma é representado apenas por duas delas: Z3 e Z2, Z3 e Z1 ou Z2 e Z1 e, no final, por uma cicatriz.

Experimental model of the formation of pelvic adhesions by videolaparoscopic in female rabbits / Modelo experimental de formação de aderências pélvicas por videolaparoscopia em coelhas

PURPOSE: To verify the frequency of postsurgical pelvic adhesion formation in an experimental animal model using videolaparoscopy. METHODS: Experimental study in a sample of 11 non-pregnant female rabbits, aged 5 to 7 months. After general anesthesia, access to the abdominal cavity was performed by an open puncture technique, with 10mm optics, placing two other 5 mm trochars under direct visualization, in the iliac fossae. Then a fragment of peritoneum was resected, followed by electrocauterization. In 21 days, the videolaparoscopy was repeated, and adhesion formation and score was looked at, with biopsies at the surgical site. RESULTS: 54 percent of adhesion formation was observed, and the median score of adhesions was 6 (minimum of 3 and maximum of 10), all of them found in the bladder and the anterior abdominal wall. CONCLUSION: The method used presents a high frequency of intra-abdominal adhesion formation.

OBJETIVO: Verificar a freqüência da formação de aderências pélvicas pós-cirúrgicas, em um modelo experimental animal, por videolaparoscopia. MÉTODOS: Estudo experimental, em uma amostra de 11 coelhas, não prenhas, com idade entre cinco e sete meses. Após anestesia geral, o acesso da cavidade abdominal foi efetuado por técnica de punção aberta, com óptica de 10 mm, colocando-se outros dois trocateres de 5 mm, sob visão direta, nas fossas ilíacas. Realizou-se, então, ressecção de fragmento de peritônio, seguida de cauterização com eletrocautério. Em 21 dias, foi repetida a videolaparoscopia, verificando-se a formação e escore de aderências e realizando-se biópsias do local da cirurgia. RESULTADOS: Observou-se 54,5 por cento de formação de aderências, sendo o escore total mediano de aderências seis (mínimo de três e máximo de 10), todas encontradas na bexiga e na parede abdominal anterior. CONCLUSÃO: O procedimento utilizado apresentou alta freqüência de formação de aderências intra-abdominais.

The Differential Imaging Features of Fat-Containing Tumors in the Peritoneal Cavity and Retroperitoneum: the Radiologic-Pathologic Correlation

There are a variety of fat-containing lesions that can arise in the intraperitoneal cavity and retroperitoneal space. Some of these fat-containing lesions, such as liposarcoma and retroperitoneal teratoma, have to be resected, although resection can be deferred for others, such as adrenal adenoma, myelolipoma, angiomyolipoma, ovarian teratoma, and lipoma, until the lesions become large or symptomatic. The third group tumors (i.e., mesenteric panniculitis and pseudolipoma of Glisson's capsule) require medical treatment or no treatment at all. Identifying factors such as whether the fat is macroscopic or microscopic within the lesion, the origin of the lesions, and the presence of combined calcification is important for narrowing the differential diagnosis. The development and wide-spread use of modern imaging modalities make identification of these factors easier so narrowing the differential diagnosis is possible. At the same time, lesions that do not require immediate treatment are being incidentally found at an increasing rate with these same imaging techniques. Thus, the questions about the treatment methods have become increasingly important. Classifying lesions in terms of the necessity of performing surgical treatment can provide important information to clinicians, and this is the one of a radiologist's key responsibilities.

Preventing intraperitoneal adhesions with vitamin E and sodium hyaluronate/carboxymethylcellulose: a comparative study in rats

PURPOSE: To compare the effectiveness of intraperitoneally administered vitamin E with the sodium hyaluronate/carboxymethylcellulose membrane (HA/CBMC) in preventing postoperative intraperitoneal adhesion formation. METHODS: Sixty Wistar rats underwent a laparotomy and adhesions were induced (IA). The animals were divided into four groups: group 1, control (IA); group 2 (IA + Vitamin E): group 3 (IA+HA/CBMC) and group 4 (IA+ Vitamin E + HA/CBMC). The Vitamin E (groups 2 and 4) and HA/CBMC (groups 3 and 4) were administered intraperitoneally before the abdominal wall was closed. After 30 days, adhesions were classified by an independent surgeon. RESULTS: Three animals died; one from group 3 and two from group 4. All control animals had substantial adhesions compared with unsubstantial adhesions observed in 11/15 in group 2 (P = 0.000), 11/14 in group 3 (P = 0.001), and 10/13 in group 4 (P = 0.000). CONCLUSION: Vitamin E, administered intraperitoneally, is as effective as HA/CBMC in preventing postoperative adhesions.

OBJETIVO: Comparar a efetividade da Vitamina E e da membrana de Carboximetilcelulose/Hialuronato de Sódio (CBMC/HA) na prevenção da formação de aderências intraperitoneais pós-operatórias. MÉTODOS: Sessenta ratos Wistar foram submetidos à laparotomia para indução de aderências (IA) com abrasão do ceco seguido de aplicação de álcool absoluto e sutura com fio de seda no peritônio parietal. Os animais foram divididos em quatro grupos: 1 controle ( IA ); 2 ( IA + Vitamina E ); 3( IA + CBMC/HA ) e 4 ( IA + Vitamina E + CBMC/HA ). A Vitamina E ( grupos 2 e 4 ) e CBMC/HA ( grupos 3 e 4 ) foram administrados intraperitonealmente antes do fechamento da parede. Os ratos foram sacrificados em 30 dias e as aderências foram classificadas por cirurgião independente. Resultados: Três animais morreram, sendo um do grupo 3 e dois do grupo 4. Todos os animais do grupo controle ( 1 ) tiveram aderências substanciais, comparados com aderências insubstanciais em 11/15 no grupo 2 ( p = 0,000 ), 11/14 no grupo 3 ( p = 0,001 ) e 10/13 no grupo 4 ( p = 0,000 ). CONCLUSÃO: A Vitamina E administrada de maneira intraperitoneal é tão eficaz quanto a CBMC/HA na prevenção da formação de aderências pós-operatórias.

Calcifying fibrous pseudotumour: a case report.

Calcifying fibrous pseudotumor with psamomma bodies (CFT) is a distinct soft tissue lesion characterized by lymphoplasmacytic collections in a rich collagenous background with abundant calcification. It was recognized first in peripheral axial soft tissues. Recently reports of this lesion in an intrabdominal location have raised speculations about it being a myofibroblastic tumor. However, this has been discounted on several objective grounds. Its recognition is important for the excellent prognosis, once adequately excised. This case report exemplifies one such case with a long-term disease-free follow-up and discusses the other clinicopathologic entities it may be confused with.

Hydrocele of the canal of Nuck.

Hydrocele of the canal of Nuck is an uncomon and infrequently reported finding in women. A 24-year-old female presented with a painless left groin swelling which was soft, cystic, non-tender with 7.5 cm x 5 cm in measurement. It was more prominent in standing. Ultrasonography revealed an encysted echofree lesion in the left inguinal canal. On surgery, a cyst was found containing clear fluid in the inguinal canal which was dissected out and wound was closed in layers. The patient is doing well till date. Here one such case with diagnosis of hydrocele of the canal of Nuck is reported.

Pathophysiology of mesenteric ischemia/reperfusion: a review

Durante a isquemia, as estruturas celulares são progressivamente lesadas, mas a restauracão do fluxo sanguíneo, paradoxalmente, pode agravar o dano celular isquêmico. O mecanismo das lesões de isquemia e reperfusão (I/R) ainda não foram completamente definidos e muitos estudos têm sido realizados na tentativa de encontrar uma terapia ideal para I/R mesentérica. A oclusão e a reperfusão das artérias esplâncnicas provocam alteracões locais e sistêmicas derivadas principalmente da liberacão de substâncias citotóxicas e da interacão entre neutrófilos e células endoteliais. As substâncias envolvidas no processo, como radicais livres derivados do oxigênio, óxido nítrico, fatores de transcricão, sistema complemento, serotonina e proteases pancreáticas, são discutidas na presente revisão. Os mecanismos de apoptose, repercussão sistêmica, terapêutica e métodos de avaliacão também são discutidos.

Correlação dos aspectos laparoscópicos com as alterações histológicas glandulares das lesões endometrióticas peritoneais / Correlation between laparoscopic aspects and glandular hystological findings of peritoneal endometriotic lesions

OBJETIVOS: Correlacionar os aspectos laparoscópicos com os achados histológicos na endometriose peritoneal para facilitar a compreensão da teoria evolutiva da endometriose. MÉTODOS: Foram selecionadas aleatoriamente para o presente estudo prospectivo 67 pacientes submetidas a laparoscopia, com diagnóstico de endometriose peritoneal. A avaliação laparoscópica foi baseada no aspecto visual do implante suspeito de endometriose peritoneal, submetido a estudo anatomopatológico. De acordo com o aspecto laparoscópico, as lesões foram agrupadas em: grupo V - vermelhas, grupo N - negras, grupo B - brancas. A avaliação histológica foi realizada observando-se as características funcionais do epitélio glandular, a presença de debris intraluminais, o número de mitoses e a relação estroma/glândula. RESULTADOS: As características funcionais do epitélio glandular mostraram associação estatisticamente significante entre os grupos, sendo o epitélio com carcterística secretora encontrado em 68,4 por cento das lesões do grupo V, 15,8 por cento do grupo N e B, enquanto que o epitélio incaracterístico foi encontrado em 19,4 por cento das lesões vermelhas, 38,7 por cento das lesões negras e 41,9 por cento das brancas e o epitélio proliferativo foi observado em 50 por cento das pacientes do grupo B e em 25 por cento dos grupos V e N (p=0,011). Em relação à presença de debris intraluminais, também houve diferença significante entre os grupos, estando presentes em 58,4 por cento das lesões negras, 33,3 por cento das lesões brancas e 8,3 por cento das lesões vermelhas (p=0,016). Quanto ao número de mitoses, não houve diferença significante nos três grupos de estudo (p=0,428). O mesmo foi observado na relação estroma/glândula, não havendo diferença significante nos grupos de estudo (p=0,159). CONCLUSAO: A associação entre atividade funcional nas lesões vermelhas e baixa atividade funcional nas lesões negras e brancas, bem como a presença de debris intraluminais nos diferentes grupos, reforçam a teoria evolutiva da endometriose peritoneal.

Nódulo granulomatoso com Enterobius vermicularis em epíploon simulando metástase de câncer de ovário / Granulomatous nodule with Enterobius vermicularis in epiploon simulating metastasis of ovarian cancer

Os autores descrevem caso de enterobíase peritoneal apresentando-se como granuloma necrosante, em adolescente com tumor do seio endodérmico do ovário. O diagnóstico foi estabelecido por biópsia de nódulo do epíploon, durante laparotomia para reestadiamento de câncer de ovário após tratamento clínico. Nódulos granulomatosos peritoneais causados por parasitas podem simular metástases, confundindo o estadiamento de neoplasias

Primary torsion and idiopathic segmental infarction of omentum

Torsion and infarction of the greater omentum are two rare clinical situations which present as an acute abdomen. Nevertheless, knowledge concerning these. two problems can help the surgeon in proper diagnosis and treatment. Since the first report on primary torsion by Eitel in 1899, a few hundred more have been reported and some collective reviews published to date. In this study we will present a complete review concerning the history, classification, pathophysiology, clinical manifestations and treatment of these disorders. In addition, we will report seven cases, four of whom developed primary torsion and the other three idiopathic segmental infarction of the omentum