ARTHUR MAGALHAES DE OLIVEIRA

Índice h a partir de 2011
2
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Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina

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  • article 3 Citação(ões) na Scopus
    Radiological findings of breast involvement in benign and malignant systemic diseases
    (2018) MATSUMOTO, Renato Augusto Eidy Kiota; CATANI, Juliana Hiraoka; CAMPOY, Mirela Liberato; OLIVEIRA, Arthur Magalhães; BARROS, Nestor de
    Abstract Although the primary purpose of periodic mammograms in screening programs is to identify lesions suspected of being carcinomas, the findings are often related to systemic (benign or malignant) diseases, rather than breast cancer. Although the involvement of breast structures in systemic diseases is unusual, it can be included in the differential diagnosis of masses, skin changes, calcifications, asymmetry, and axillary lymphadenopathy. The main diagnostic entities that can be associated with such involvement are diabetes, chronic kidney disease, heart diseases, connective tissue diseases, HIV infection, lymphoma, leukemia, and metastases from primary tumors at other sites. In many cases, information related to knowledge and treatment of chronic diseases is not available to the radiologist at the time of evaluation of the mammography findings. The purpose of this essay is to offer relevant pictorial information to the general radiologist about systemic diseases involving the breast, expanding the range of differential diagnoses in order to avoid unnecessary invasive procedures.
  • article 51 Citação(ões) na Scopus
    Imaging Patterns of Toxic and Metabolic Brain Disorders
    (2019) OLIVEIRA, Arthur M. de; V, Matheus Paulin; VIEIRA, Ana R. E.; MCKINNEY, Alexander M.; ROCHA, Antonio da; SANTOS, Germana T. dos; LEITE, Claudia da Costa; GODOY, Luis E. de Souza; LUCATO, Leandro T.
    Toxic and metabolic brain disorders are relatively uncommon diseases that affect the central nervous system, but they are important to recognize as they can lead to catastrophic outcomes if not rapidly and properly managed. Imaging plays a key role in determining the most probable diagnosis, pointing to the next steps of investigation, and providing prognostic information. The majority of cases demonstrate bilateral and symmetric involvement of structures at imaging, affecting the deep gray nuclei, cortical gray matter, and/or periventricular white matter, and some cases show specific imaging manifestations. When an appropriate clinical situation suggests exogenous or endogenous toxic effects, the associated imaging pattern usually indicates a restricted group of diagnostic possibilities. Nonetheless, toxic and metabolic brain disorders in the literature are usually approached in the literature by starting with common causal agents and then reaching imaging abnormalities, frequently mixing many different possible manifestations. Conversely, this article proposes a systematic approach to address this group of diseases based on the most important imaging patterns encountered in clinical practice. Each pattern is suggestive of a most likely differential diagnosis, which more closely resembles real-world scenarios faced by radiologists. Basic pathophysiologic concepts regarding cerebral edemas and their relation to imaging are introduced-an important topic for overall understanding. The most important imaging patterns are presented, and the main differential diagnosis for each pattern is discussed. (C) RSNA, 2019