No abstract

Background: The use of meshes in hernia surgical repair promoted revolution in the surgical area; however, some difficulties had come, such as a large area of fibrosis, greater postoperative pain and risk of infection. The search for new substances that minimize these effects should be encouraged. Medicinal plants stand out due possible active ingredients that can act on these problems. Aim: To check the copaiba oil influence in the repair of abdominal defects in rats corrected with Vicryl(c) mesh. Method: Twenty-four Wistar rats were submitted to an abdominal defect and corrected with Vicryl(c) mesh. They were distributed into two groups: control and copaíba via gavage, administered for seven days after surgery. The analysis of the animals took place on 8, 15 and 22 postoperative days. It analyzed the amount of adhesions and microscopic analysis of the mesh. Results: There was no statistical difference regarding the amount of adhesions. All animals had signs of acute inflammation. In the control group, there were fewer macrophages in animals of the 8th compared to other days and greater amount of necrosis on day 8 than on day 22. In the copaiba group, the number of gigantocytes increased compared to the days analyzed. Conclusion: Copaiba oil showed an improvement in the inflammatory response accelerating its beginning; however, did not affect the amount of abdominal adhesions or collagen fibers.

Background We report a case of a patient with a rare clinical condition: cystic angiomatosis presenting as pleural effusion and multiple bone lesions mimicking a metastatic malignant neoplasia. With only about 50 such cases published in the literature, it is important to report the clinical presentation and proposed treatment and to share information about the clinical evolution in these patients. Case presentation We report a case of a 45-year-old white man who presented to our hospital with ventilator-dependent pain. Chest tomography detected pleural effusion and multiple osteolytic bone lesions. Oncologic investigation for metastatic malignant neoplasia was started after exclusion of an infectious process. Imaging examinations revealed diffuse osteolytic lesions as well as cystic lesions of the spleen, with discrete glycolytic hypermetabolism visualized by positron emission tomography. After negative results were obtained by investigation of the primary tumor site and a bone biopsy, a final diagnosis of cystic angiomatosis was made. Conclusions In view of the fact that cystic angiomatosis is a heterogeneous disorder of unpredictable prognosis and uncertain treatment, it is necessary to disseminate new cases so that further studies may be undertaken to obtain further physiopathological findings and an effective treatment.

Yellow fever (YF) is an infectious disease whoseevolution and outcome arerelated to the host immune response pattern. We investigated the Th17 cytokine profile in the liver of humans with fatal YF. Liver tissue samples were collected from 26 patients, including 21 YF-positive and five flavivirus-negative patients with preserved hepatic parenchyma architecture who died of other causes. Samples underwent histopathological and immunohistochemical analysis to detect the Th17 profile (ROR-γ, STAT3, IL-6, TGF-β, IL-17,and IL-23). Substantial differences were found in the expression of markers between fatal YF cases and control samples with a predominance of Th17 cytokine markers in the midzonal region of the YF cases, the most affected area in the liver acinus. Histopathological changes in the hepatic parenchyma revealed cellular damage characterised mainly by the presence of inflammatory infiltrate, Councilman bodies (apoptotic cells), micro/macrovesicular steatosis, and lytic and coagulative necrosis.Th17 cytokines play a pivotal role during YF and contribute significantly to triggering the mechanisms of cell damage in the fatal outcome of severe cases.

Concomitant occurrence of two different carcinomas in the same organ is rare. Also, it is quite uncommon in thyroid. In this case, three histological types were diagnosed in the same specimen. A 57-year-old patient with a thyroid nodule history, diagnosed 2 years ago. After a suspicious fine needle aspiration cytological result, total thyroidectomy was performed and the histopathological analysis presented three divergent thyroid tumors. There are few thyroid collision tumors cases described, no one with three different histologic types. The lack of clinical information about it, compelled a judicious management, that guided to a satisfatory outcome.