Publications by authors named "Bara Tivadar"

Esophageal carcinoma is an aggressive cancer with a poor therapeutic response and a significant risk of recurrence after radical resection. It usually metastasizes to the lung, bones, or liver. Unusual spread can be found in other organs, but only nine cases of pancreatic metastases have been reported in the Medline database.

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Article Synopsis
  • Leptospirosis is a widespread bacterium that affects both humans and animals, typically causing mild infections, but in some cases, it can lead to severe conditions like Weil's disease, which involves liver issues and, rarely, complications such as cholecystitis.
  • In a case study, a 66-year-old man with symptoms of abdominal pain, fever, and jaundice was initially diagnosed with acute calculous cholecystitis, but further investigation revealed signs of leptospirosis, leading to appropriate treatment before surgery.
  • The study highlights that Weil's disease can imitate acute cholecystitis symptoms, emphasizing the need for careful diagnosis and the consideration of leptospirosis in patients with certain risk
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The signet-ring cell variant of squamous cell carcinoma (SCC) is an extremely rare histological subtype, with only 24 cases (including the present case) reported in the Medline database: 15 affecting the external surface of the body, 3 in the lung, 2 affecting the uterine cervix, 1 involving the gingiva, another one affecting the esophagus and the present case that is the first reported at the gastro-esophageal junction (GEJ). In one case, the location of the lesion was not mentioned. A 59-year-old male patient underwent segmental eso-gastrectomy for carcinoma of the GEJ.

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V-set and Immunoglobulin domain containing 1 (VSIG1) is a cell-cell adhesion molecule which role in the genesis and evolution of gastric cancer (GC) is not understood. Only three Medline-indexed papers have focused on the role of VSIG1 in GC. The clinicopathological features of 94 GCs were examined in association with immunohistochemical (IHC) patterns of VSIG1, E-cadherin, and β-catenin which were assessed in the tumor core (central) vs.

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Preoperative staging of colorectal cancer (CRC) based on imaging techniques such as computed tomography (CT) or magnetic resonance imaging (MRI) is crucial for identification and then removal of the positive lymph nodes (LNs). The aim of this study was to evaluate the correlation between preoperatively seen morphologic criteria (number, size, shape, structure, borders, or enhancement patterns) and histopathological features of LNs using an in-house validated map of nodal stations. A total of 112 patients with CRC that underwent surgery were preoperatively evaluated by CT scans.

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Chylous ascites represents a relatively uncommon condition. In this paper, we present a case of chyloperitoneum associated with pancreatic ductal adenocarcinoma (PDAC) and a review of literature regarding chylous ascites. A 76-year-old male patient was admitted in emergency department with acute abdomen.

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Background: In patients with synchronous colorectal cancer (SCRC), understanding the underlying molecular behavior of such cases is mandatory for designing individualized therapy. The aim of this paper is to highlight the importance of transdisciplinary evaluation of the pre- and post-operative assessment of patients with SCRCs, from imaging to molecular investigations.

Methods: Six patients with SCRCs presented with two carcinomas each.

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Background: Although amplification of the gene encoding human epidermal growth factor receptor 2 (HER2) is used as an indicator for response to trastuzumab, the reported response rate is low, and few patients with gastric cancer (GC) benefit from this individualized therapy. The aim of this study was to examine the expression of c-erbB-2 oncoprotein (HER2), in GC samples, using two commercial immunohistochemical (IHC) antibodies, and to validate the results by checking 2 gene amplification by fluorescence in situ hybridization (FISH).

Methods: We assessed the IHC expression of HER2 using the polyclonal antibody from Dako and CB11 clone from Leica, in 93 consecutive cases of GC samples.

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Background: Rhabdomyosarcoma (RMS) of the breast, a mesenchymal neoplasm with skeletal muscle differentiation, is an extremely rare tumour in males, with less than 30 cases published in English-language literature. We report on the first case of a male breast RMS, with an unusual ectomesenchymal/neuroectodermal component.

Case Summary: A 55-year-old, previously healthy male, underwent a radical left mastectomy for an ulcerated tumour mass, occupying the breast and left anterior thoracic wall.

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Despite the description of several new prognostic markers, colorectal cancer still represents the third most frequent cause of cancer-related death. As immunotherapy is considered a therapeutic alternative in such patients, neutrophil-to-lymphocyte (NLR) and lymphocyte-to-monocyte ratio (LMR) are hypothesized to provide reliable prognostic information. A retrospective study was conducted on 1052 patients operated on during 2013-2019 in two clinical hospitals from Hungary and Romania.

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Background: A collecting duct carcinoma is a very rare, malignant renal epithelial tumor. Distant metastases are present in one third of cases at the time of diagnosis. It is known to have a poor prognosis.

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Giant abdominal wall defects represent a major challenge for surgeons. CT scan can determine the ratio between the volume of the hernia sac and the abdominal cavity, determining the extent of the disproportion, which is related to the postoperative abdominal pressure value. Confirmation of the significance of CT examination in postoperative giant abdominal wall defects, effectiveness analysis of the reconstruction method by abdominal pressure measurement.

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The aim of the present study was to classify colorectal carcinoma (CRC) into molecular subtypes, based on immunohistochemical (IHC) assessments. A total of 112 CRC samples were molecularly classified based on the expression levels of epithelial-mesenchymal transition (EMT)-associated IHC markers. A total of three molecular subtypes were defined: Epithelial, membrane positivity for E-cadherin and β-catenin, negative for vimentin; mesenchymal, E-cadherin-negative, nuclear β-catenin- and vimentin-positive; and hybrid cases, epithelial tumor core and mesenchymal tumor buds.

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Background: Although it has been shown that arylsulfatases are lost in colorectal cancer (CRC) cell lines, their exact role in the carcinogenesis and behavior of this cancer was not elucidated. No data about the correlation between serum and immunohistochemical (IHC) level of arylsulfatases (ARSA, ARSB) in patients with CRC were published yet.

Aim: To evaluate the possible prognostic value of ARSA and/or ARSB in CRC, at circulating and protein levels.

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Background: Mixed adenoneuroendocrine carcinoma (MANEC) is currently included in the category of neuroendocrine carcinomas but the therapeutically management is not yet defined.

Aims: To present the immunohistochemical (IHC) features of the epithelial mesenchymal transition (EMT) of MANEC.

Materials And Methods: The clinicopathological features of 13 consecutive cases of MANEC (6 gastric and 7 colorectal) were correlated with the IHC expression of the biomarkers E-cadherin, β-catenin, N-cadherin, vimentin, maspin, CD44 and S100.

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Rationale: About 8384 cases of solid pseudopapillary neoplasms (SPN) of pancreas have been published in English literature, from 1933 to 2018. This is a low-grade tumor that usually occurs in children but is rare in adults and, in exceptional cases, can show extrapancreatic localization. In this paper we present 2 unusual cases of SPNs, 1 with retroperitoneal location (case 1) and 1 that was firstly diagnosed as a G1 neuroendocrine tumor (NET) and showed hepatic metastases after 13 years (case 2).

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Background: Identification of the proper surgical method and the most reliable prognostic parameters of rectal carcinomas is a challenging issue. The aim of this paper was to determine the possible prognostic role of the number of harvested lymph nodes versus lymph node ratio (LNR) in patients with rectal carcinomas, and the proper value of LNR that can be used as prognostic parameter.

Materials And Methods: A retrospective study was performed in 186 consecutive patients with rectal carcinomas that underwent surgical resection.

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As the lymph node status remains the main prognostic factor of gastric cancer (GC), several lymph node-based staging systems have been recently proposed for an appropriate postoperative therapy. The identification of sentinel lymph nodes (SLNs) might improve the postoperative protocols. The aim of this study was to present our experience in detecting SLNs in GC using methylene blue dye.

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Abdominal Compartment Syndrome (ACS), despite recent advances in medical and surgical care, is a significant cause of mortality. The purpose of this review is to present the main diagnostic and therapeutic aspects from the anesthetical and surgical points of view. Intra-abdominal hypertension may be diagnosed by measuring intra-abdominal pressure and indirectly by imaging and radiological means.

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Background: Pancreatic mucinous cystic neoplasms (MCN) are rare tumors that are usually diagnosed in females.

Materials And Methods: In our department, only four of the 109 consecutive cases of pancreatic tumors (3.67%) were diagnosed as MCNs.

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Langerhans cell histiocytosis (LCH) is a rare disorder caused by monoclonal Langerhans cells proliferation in bone, skin, lung, lymph nodes, liver, spleen, nervous or hematopoietic system. Pulmonary LCH is a diagnostic trap that is displayed on computed tomography (CT) as an interstitial disorder with honeycomb aspect. In this paper, we present an unusual case of a 26-year-old female that was hospitalized with progressive worsening dyspnea and history of recurrent pneumonia.

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Rationale: Burkitt lymphoma (BL) is an endemic tumor in Africa but rare sporadic cases are diagnosed in Europe.

Patient Concerns: A 60-year-old woman was hospitalized with fulminant hematemesis and a history of recurring melena.

Diagnoses: The upper gastrointestinal endoscopy revealed a tumor of the antrum.

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Aim: To evaluate the immunohistochemical (IHC) expression of five biomarkers, commonly involved in epithelial mesenchymal/mesenchymal epithelial transition (EMT/MET), in gastrointestinal stromal tumors (GISTs).

Methods: In 80 consecutive GISTs the IHC examinations were performed using the EMT-related antibodies E-cadherin, N-cadherin, SLUG, V-set and immunoglobulin domain containing 1 (VSIG1) and CD44.

Results: The positivity rate was 88.

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Background: Bariatric surgery is a continuously evolving field. Laparoscopic greater curvature plication is a new investigational procedure used to treat patients with morbid obesity. The demand for this operation from the obese patients is also rising.

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Introduction: The aim of this study was to analyze the particularities of early gastric cancer (EGC) and their importance for staging, prognosis, and therapy.

Material And Methods: A total of 338 GCs diagnosed and surgically removed in three medical institutes from Eastern Europe were retrospectively examined, and the EGCs were further examined. Besides the demographic factors and tumor characteristics, immunostains were performed with E-cadherin, HER-2, p53, Ki67, MLH-1, MSH-2, COX-2, VEGF-A, CD31, and CD105.

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