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  1. Article ; Online: Fibroblastic reticular cell tumour of the internal iliac lymph node presenting as a hypervascular lesion and mimicking a pseudoaneurysm: an extremely rare diagnosis.

    Medeiros, Augusto Kreling / Barbisan, Cinthia Callegari / de Carvalho, Isaac Torres / Torres, Ulysses Dos Santos / Bacchi, Carlos Eduardo

    BMJ case reports

    2023  Volume 16, Issue 4

    Abstract: A woman in her 50s presented with a rounded and hypervascular lesion in the right internal iliac lymph node chain, contacting with small branches of the anterior division of the internal iliac artery. Since the lesion matched the blood arterial pool in ... ...

    Abstract A woman in her 50s presented with a rounded and hypervascular lesion in the right internal iliac lymph node chain, contacting with small branches of the anterior division of the internal iliac artery. Since the lesion matched the blood arterial pool in CT and the patient exhibited multiple vascular abnormalities that suggested segmental arterial mediolysis, a pseudoaneurysm hypothesis was initially made. Arteriography was realised due to the intention for embolisation of the pseudoaneurysm, but the dynamic behaviour during the exam suggested a hypervascular tumour more. An MRI was conducted, bringing new evidence, favouring the possibility of a neoplasm. The lesion excision was performed and sent to pathology. Morphological and immunohistochemical findings suggested a rare case of a fibroblastic reticular cell tumour of the internal iliac lymph node.
    MeSH term(s) Female ; Humans ; Aneurysm, False/diagnostic imaging ; Aneurysm, False/surgery ; Pelvis ; Lymph Nodes/diagnostic imaging ; Iliac Artery/diagnostic imaging ; Iliac Artery/surgery ; Embolization, Therapeutic
    Language English
    Publishing date 2023-04-20
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 1757-790X
    ISSN (online) 1757-790X
    DOI 10.1136/bcr-2022-252280
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Hepatic neuroendocrine neoplasm: imaging patterns.

    Houat, Abdallah de Paula / von Atzingen, Augusto Castelli / Velloni, Fernanda Garozzo / de Oliveira, Rafael Andrade Santiago / Torres, Ulysses Dos Santos / D'Ippolito, Giuseppe

    Radiologia brasileira

    2020  Volume 53, Issue 3, Page(s) 195–200

    Abstract: Neuroendocrine neoplasms (NENs) are a heterogeneous group of tumors with distinct morphological and biological manifestations, the liver being the main organ affected by its metastases. However, primary hepatic involvement is quite rare. Hepatic NENs can ...

    Abstract Neuroendocrine neoplasms (NENs) are a heterogeneous group of tumors with distinct morphological and biological manifestations, the liver being the main organ affected by its metastases. However, primary hepatic involvement is quite rare. Hepatic NENs can have a variety of radiological presentation forms and can therefore mimic other lesions, making their diagnosis challenging. Nonetheless, certain imaging aspects allow NENs to be included among the main differential diagnoses of hepatic lesions and can guide the search for an extrahepatic primary site when the probable diagnosis is metastases.
    Language English
    Publishing date 2020-05-04
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2078806-X
    ISSN 1678-7099 ; 0100-3984
    ISSN (online) 1678-7099
    ISSN 0100-3984
    DOI 10.1590/0100-3984.2019.0038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Unenhanced magnetic resonance angiography as an accurate alternative in the preoperative assessment of potential living kidney donors with contraindications to computed tomography angiography and to contrast-enhanced magnetic resonance angiography.

    Velloni, Fernanda Garozzo / Cardia, Patrícia Prando / Torres, Ulysses Dos Santos / Pereira, Marco Antonio Haddad / Penachim, Thiago José / Favaro, Larissa Rossini / Ramalho, Miguel / D'Ippolito, Giuseppe

    Radiologia brasileira

    2020  Volume 53, Issue 4, Page(s) 229–235

    Abstract: Objective: To evaluate the accuracy of steady-state free precession (SSFP) unenhanced magnetic resonance angiography (MRA) at 1.5 T for the identification of multiple renal arteries, using computed tomography angiography (CTA) as the reference standard.! ...

    Abstract Objective: To evaluate the accuracy of steady-state free precession (SSFP) unenhanced magnetic resonance angiography (MRA) at 1.5 T for the identification of multiple renal arteries, using computed tomography angiography (CTA) as the reference standard.
    Materials and methods: This was a prospective study involving 39 patients (26 males; mean age, 62.6 years) who underwent CTA and unenhanced MRA to evaluate the proximal and middle segments of the renal arteries. The analysis was performed in two phases: the quality of unenhanced MRA images was classified as diagnostic or nondiagnostic for the presence of multiple renal arteries by two independent readers; two other independent readers then evaluated the images previously classified as being of diagnostic quality. The sensitivity, specificity, and overall accuracy of unenhanced MRA were calculated, CTA being used as the reference standard. The kappa statistic was used in order to calculate interobserver agreement.
    Results: The image quality of unenhanced MRA was considered diagnostic in 70-90% of the extrarenal arterial segments. The CTA examination revealed 19 multiple renal arteries (8 on the right and 11 on the left). The accuracy of unenhanced MRA for the identification of multiple renal arteries was greater than 90%, with a sensitivity of 72.7-100% and a specificity of 96.3-100%.
    Conclusion: Unenhanced MRA provides high quality imaging of the extrarenal segments of renal arteries. This method may be used as an alternative for the evaluation of the renal arteries, given that it has an accuracy comparable to that of CTA.
    Language English
    Publishing date 2020-08-21
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2078806-X
    ISSN 1678-7099 ; 0100-3984
    ISSN (online) 1678-7099
    ISSN 0100-3984
    DOI 10.1590/0100-3984.2019.0013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Article ; Online: Increasing hospital admission rates and economic burden for colorectal cancer in Brazil, 1996-2008

    Torres, Ulysses dos Santos / Almeida, Thomas Eugenio Portes de / Netinho, João Gomes

    2015  

    Keywords Colorectal neoplasms ; Hospitalization ; Length of Stay ; Hospital Mortality ; Hospital Costs ; Brazil ; Neoplasias colorrectales ; Hospitalización ; Tiempo de internación ; Mortalidad hospitalaria ; Costos de hospital ; Brasil ; Neoplasias Colorretais ; Efeitos Psicossociais da Doença ; Admissão do Paciente ; Fatores de Tempo
    Publishing date 2015-08-25T14:56:07Z
    Document type Book ; Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Increasing hospital admission rates and economic burden for colorectal cancer in Brazil, 1996-2008.

    Torres, Ulysses Dos Santos / Almeida, Thomas Eugenio Portes de / Netinho, João Gomes

    Revista panamericana de salud publica = Pan American journal of public health

    2010  Volume 28, Issue 4, Page(s) 244–248

    Abstract: Objective: to determine the trends in hospital admission rates for colorectal cancer (CRC) in the Brazilian Public Health System from 1996 to 2008 and to assess the economic costs.: Methods: data from the Hospital Information Systems database of the ... ...

    Abstract Objective: to determine the trends in hospital admission rates for colorectal cancer (CRC) in the Brazilian Public Health System from 1996 to 2008 and to assess the economic costs.
    Methods: data from the Hospital Information Systems database of the Brazilian Unified Health System were used for analysis of all admissions with a primary diagnosis of CRC between 1996 and 2008.
    Results: there were 297 108 CRC admissions over the study period, with an annual increase from 12 821 in 1996 to 35 040 in 2008. Age-standardized admission rates increased from 8.7 to 23.56 per 100 000 for a percentage increase of 171%. The average length of stay decreased from 11.6 days in 1996 to 7.5 days in 2008. The average hospital mortality declined from 10.4% to 8.5%. Overall costs in United States dollars (US$) of CRC hospitalizations rose from US$ 16.5 million in 1996 to US$ 33.5 million in 2008; the average cost of each admission, however, decreased from US$ 1 283 to US$ 954.
    Conclusions: hospitalization rates for CRC in Brazil significantly increased during a 13-year period, incurring a considerable rise in the inflation-adjusted economic burden; national in-hospital mortality rates have remained relatively high.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Brazil ; Colorectal Neoplasms/economics ; Cost of Illness ; Female ; Humans ; Male ; Middle Aged ; Patient Admission/statistics & numerical data ; Patient Admission/trends ; Time Factors
    Language English
    Publishing date 2010-11-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1376934-0
    ISSN 1680-5348 ; 1020-4989
    ISSN (online) 1680-5348
    ISSN 1020-4989
    DOI 10.1590/s1020-49892010001000002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  6. Article ; Online: The Montreal classification for Crohn's disease: clinical application to a Brazilian single-center cohort of 90 consecutive patients.

    Torres, Ulysses dos Santos / Rodrigues, Juliana Olsen / Junqueira, Melissa Silva Garcia / Uezato, Simone / Netinho, João Gomes

    Arquivos de gastroenterologia

    2010  Volume 47, Issue 3, Page(s) 279–284

    Abstract: Context: Crohn's disease presents very heterogeneous features from a clinical point of view, and classifying Crohn's disease patients in homogeneous subgroups in the light of genetic, molecular and clinical aspects is challenging. The Montreal ... ...

    Abstract Context: Crohn's disease presents very heterogeneous features from a clinical point of view, and classifying Crohn's disease patients in homogeneous subgroups in the light of genetic, molecular and clinical aspects is challenging. The Montreal Classification for Crohn's disease was proposed in 2005 as an effort to characterize Crohn's disease patients according to recent clinical and research advances in the field of inflammatory bowel disease. Since its proposition, the Montreal Classification needs an ample validation and application among different populations around the world. To date, there are no known studies applying the Montreal Classification to a Brazilian cohort of Crohn's disease patients.
    Objectives: To apply the Montreal Classification to a Brazilian cohort of Crohn's disease patients at a referral center for inflammatory bowel disease in Northwestern São Paulo State, Brazil.
    Methods: We selected 90 consecutive well-characterized Crohn's disease patients assisted at Inflammatory Bowel Disease Outpatient Clinic between January 1992 and January 2007, with a minimum follow-up of 2 years; data concerning demographic characteristics, clinical onset of disease, age at diagnosis, time of disease, location and behavior of disease, presence of extraintestinal manifestations, familial occurrence, perianal involvement, treatment with biological drugs, and history of surgical treatment were evaluated.
    Results: Male patients were predominant (54%), with a mean age at diagnosis of 33 ± 14 years old, and a median followup of 5.5 years. Most of the patients were diagnosed between 17 and 40 years old (59%), and had disease located in terminal ileum 46%), with a nonstricturing, nonpenetrating behavior (71%). Time of disease was correlated with necessity of biological treatment, disease behavior, and surgical treatment (P<0.05).
    Conclusions: These study findings are consistent with results from other studies conducted among different populations, although a further multicentric study with a larger number of patients would be necessary to validate the Montreal Classification among Brazilian population.
    MeSH term(s) Adolescent ; Adult ; Brazil ; Cohort Studies ; Crohn Disease/classification ; Crohn Disease/pathology ; Female ; Humans ; Male ; Reproducibility of Results
    Language English
    Publishing date 2010-10-13
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 137743-7
    ISSN 1678-4219 ; 0004-2803
    ISSN (online) 1678-4219
    ISSN 0004-2803
    DOI 10.1590/s0004-28032010000300013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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