545 research outputs found

    Small bowel obstruction due to subserosal endometriosis: an elusive condition

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    The bowel is involved in 3.8 to 37% of women with endometriosis, out of which nearly 1% present with signs of bowel obstruction to the surgeon. This report describes a case of acute small bowel obstruction in a 23 years old woman. The patient gave a history of intermittent episodes of pain abdomen and abdominal distension for the past 1 year with significant loss of weight. The menstrual cycles were normal. Although there was no history of Tuberculosis, a positive history of contact was present. The clinical and biochemical picture was suggestive of peritonitis. CECT of the abdomen revealed a long segment distal ileal stricture. With a provisional diagnosis of Tubercular Ileo-Caecal stricture perforation, a midline exploratory laparotomy was performed. The procedure consisted of right limited hemicolectomy and primary ileo-ascending anastomosis with a proximal loop ileostomy. Ileostomy was done to allow the healing of distal anastomosis and closure was done after 4 weeks. Histopathology of the resected segment of ileum revealed subserosal endometriosis. Postoperatively, the patient was not given any hormonal therapy and recovery has been uneventful over the past 1 year of follow up

    Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

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    A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

    Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV